{"title":"GMC Vehicle Products","description":"\u003cp\u003eBrowse vehicle-specific GMC automotive bypass modules for the applications currently listed in this collection. Products may cover auto start-stop, AFM\/DFM\/VCM, or TPMS systems depending on the vehicle.\u003c\/p\u003e\u003cp\u003eOpen each product to verify the exact model year, engine, trim, connector, and fitment notes before ordering.\u003c\/p\u003e","products":[{"product_id":"afm-dfm-vcm-disabler-gmc-sierra-1500-2007-2018-afm-dfm-disabler","title":"GMC Sierra 1500 2007-2018 4.3L\/5.3L\/6.0L\/6.2L V6\/V8 AFM\/DFM Disabler","description":"\u003cp\u003eThis AFM\/DFM disabler plugs into the OBD-II port of the 2007–2018 GMC Sierra 1500. Its job is to keep the engine running on all cylinders instead of dropping into the reduced-cylinder mode that GM's Active Fuel Management uses at light load. It does not rewrite engine software, and removal takes seconds: unplug the module and the vehicle is back to stock behavior.\u003c\/p\u003e\u003ch2\u003eFitment by year and engine\u003c\/h2\u003e\u003cp\u003eListed applications, each a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2007–2009 GMC Sierra 1500: 5.3L V8 \/ 6.0L V8\u003c\/li\u003e\n\u003cli\u003e2010–2013 GMC Sierra 1500: 5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2014 GMC Sierra 1500: 4.3L V6 \/ 5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2015–2017 GMC Sierra 1500: 4.3L V6 \/ 5.3L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2018 GMC Sierra 1500: 4.3L V6 \/ 5.3L V8\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor reference, these are the AFM-equipped GM engine codes that match the years and displacements above:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLY5 (5.3L, 2007–2009, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003cli\u003eLC9 (5.3L, 2007–2011, VIN 8th digit \"3\")\u003c\/li\u003e\n\u003cli\u003eLMG (5.3L, 2007–2014, VIN 8th digit \"0\")\u003c\/li\u003e\n\u003cli\u003eL76 (6.0L, 2007–2009, VIN 8th digit \"Y\")\u003c\/li\u003e\n\u003cli\u003eLFA (6.0L, 2008–2009, VIN 8th digit \"5\")\u003c\/li\u003e\n\u003cli\u003eLZ1 (6.0L, 2010–2013, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003cli\u003eLV3 (4.3L, 2014–2018)\u003c\/li\u003e\n\u003cli\u003eL83 (5.3L, 2014–2018, VIN 8th digit \"C\")\u003c\/li\u003e\n\u003cli\u003eL86 (6.2L, 2014–2018, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn the same trucks and SUVs, GM also built V8s without AFM, for example the 5.3L LH9 (2010–2012 trucks, VIN code P), the 6.0L LY6 and L96 and the 6.2L L9H. Those engines never deactivate cylinders, so the module has nothing to manage on them. Check your code against both lists before you buy.\u003c\/p\u003e\u003cp\u003eIf your engine code is not in this list, email the VIN to support before ordering so we can confirm the application.\u003c\/p\u003e\u003ch2\u003eWhat AFM does on these engines\u003c\/h2\u003e\u003cp\u003eGM's Active Fuel Management turns a V8 into a V4 at light load by deactivating cylinders 1, 7, 6 and 4. Solenoids route oil pressure to the lifters on those cylinders, which collapse and stop opening the valves. Fuel to those cylinders is cut at the same time. Press the throttle harder and the system brings all eight back.\u003c\/p\u003e\u003cp\u003eGM's 4.3L V6 (RPO LV3) uses the same idea on two cylinders: cylinders 3 and 6 are deactivated at light load, so the engine runs on four. On V8s, AFM drops cylinders 1, 7, 6 and 4. In both cases oil-pressure solenoids switch special lifters into a collapsed state and fuel to those cylinders is cut.\u003c\/p\u003e\u003cp\u003eFor the 2019 redesign of the Silverado 1500 and Sierra 1500, GM introduced Dynamic Fuel Management on the 5.3L L84 and 6.2L L87, which can run on 17 different cylinder patterns. That is a different system from the AFM covered by this listing.\u003c\/p\u003e\u003ch2\u003eEngine care\u003c\/h2\u003e\u003cp\u003eDisabling cylinder deactivation does not replace normal maintenance. Use the oil grade and change interval GM lists for your engine, watch the oil level between changes, and repair leaks promptly. The valvetrain on these engines depends on clean oil at proper pressure in every mode.\u003c\/p\u003e\u003ch2\u003eReasons to keep all cylinders running\u003c\/h2\u003e\u003cp\u003eMany drivers would rather have predictable response than the small economy gain from running on fewer cylinders, especially when towing, hauling or driving in hills. Keeping AFM off removes the mode changes entirely. It does not add horsepower, and it is not a fix for an engine that already has lifter or oil-consumption problems.\u003c\/p\u003e\u003ch2\u003eCheck the engine first\u003c\/h2\u003e\u003cp\u003eThis module prevents mode switching. It does not repair anything. If the engine already has a ticking lifter, misfire codes, low oil pressure or high oil consumption, have it diagnosed before relying on the module. Those symptoms need a mechanical repair, and keeping AFM off will not reverse damage that has already happened.\u003c\/p\u003e\u003ch2\u003eWhat changes when you drive\u003c\/h2\u003e\u003cp\u003eDrive at a steady cruise on a light throttle, where AFM used to switch modes. The engine should now stay on all cylinders, so the subtle shudder, drone or hesitation that came with each change should be gone. If your dash shows instant fuel economy, expect the light-cruise numbers to read a little lower than before, since that is exactly where cylinder deactivation saved fuel.\u003c\/p\u003e\u003ch2\u003ePractical notes\u003c\/h2\u003e\u003cp\u003eThe module uses the OBD-II port, so it has to come out whenever a technician or an inspection station needs the port. Plugging it back in restores the all-cylinder mode. Route it so the driver cannot kick it loose.\u003c\/p\u003e\u003ch2\u003eModule, tune or delete kit\u003c\/h2\u003e\u003cp\u003eA mechanical AFM delete swaps the deactivating lifters (and often the camshaft and lifter oil manifold) for non-AFM parts and requires a tune afterwards. A tune alone can switch AFM off in software. This module works through the OBD-II port instead, so the engine hardware and its calibration stay stock. That makes it the easiest option to reverse, and the right one only when the engine is mechanically healthy.\u003c\/p\u003e\u003ch2\u003eHow to confirm your engine code\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2007–2018 GMC Sierra 1500).\u003c\/li\u003e\n\u003cli\u003eLook up the engine RPO code. Older GM vehicles print it on the Service Parts Identification sticker, often in the glovebox; 2018 and newer GM models carry it in a QR code on the driver-side B-pillar label. You can also read the 8th digit of the VIN, which is the engine code.\u003c\/li\u003e\n\u003cli\u003eNo check-engine light is on, and oil level and pressure are normal.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has an engine swap, an aftermarket tune or a replacement engine computer, contact support first.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year and engine\u003c\/h2\u003e\u003cp\u003eOne row per year. The last column shows which AFM-equipped GM engine codes match that year and engine size:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLC9, LMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLC9, LMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e4.3L V6 \/ 5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLV3, LMG, L83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e4.3L V6 \/ 5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLV3, L83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e4.3L V6 \/ 5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLV3, L83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e4.3L V6 \/ 5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLV3, L83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003e4.3L V6 \/ 5.3L V8\u003c\/td\u003e\n\u003ctd\u003eLV3, L83\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eEngine code notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLY5\u003c\/strong\u003e: iron-block 5.3L Vortec used in 2007–2009 trucks and SUVs, without variable valve timing or flex-fuel capability. VIN engine digit \"J\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLC9\u003c\/strong\u003e: aluminum-block 5.3L flex-fuel (E85-capable) truck and SUV engine, with variable valve timing added from 2010. VIN engine digit \"3\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLMG\u003c\/strong\u003e: 5.3L flex-fuel truck and SUV engine, with variable valve timing from 2010. VIN engine digit \"0\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL76\u003c\/strong\u003e: aluminum-block 6.0L V8 with rectangular-port heads; the 2007–2009 truck version also has variable valve timing. VIN engine digit \"Y\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLFA\u003c\/strong\u003e: 6.0L V8 used in the Two-Mode Hybrid trucks and SUVs, with variable valve timing. VIN engine digit \"5\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLZ1\u003c\/strong\u003e: 6.0L hybrid V8 for 2010–2013 Two-Mode Hybrid models, flex-fuel capable with variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLV3\u003c\/strong\u003e: 4.3L EcoTec3 V6 with direct injection, the base engine in the 2014–2018 Silverado 1500 and Sierra 1500.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL83\u003c\/strong\u003e: 5.3L EcoTec3 V8 with direct injection, variable valve timing and flex-fuel capability. VIN engine digit \"C\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL86\u003c\/strong\u003e: 6.2L EcoTec3 V8 with direct injection and variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003ch2\u003eModel background\u003c\/h2\u003e\u003cp\u003eGM's full-size trucks and SUVs from the 2007 model year rode on the GMT900 platform with Gen IV V8s. The 2014 Silverado 1500 and Sierra 1500, and the 2015 Tahoe, Suburban, Yukon and Escalade, moved to the K2XX platform with the EcoTec3 engines (4.3L LV3, 5.3L L83, 6.2L L86). Both generations used AFM on most gasoline V8s, so the engine code decides fitment more reliably than the model name.\u003c\/p\u003e\u003ch2\u003eThe 6.2L V8 story: L92, L9H and L94\u003c\/h2\u003e\u003cp\u003eNot every GMT900 6.2L has cylinder deactivation. The L92 (2007–2008 Escalade, Yukon Denali and related models) had no working AFM, and the 2009 flex-fuel L9H had none either. AFM arrived on the 6.2L for 2010 as the L94 in the Escalade and Yukon Denali family. Published application lists show the 2007–2013 Sierra 1500 Denali with the L92\/L9H instead. The 2014-on EcoTec3 6.2L L86 brought AFM to the newer trucks and SUVs.\u003c\/p\u003e\u003ch2\u003eBefore you plug it in\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eScan the engine for stored codes and note any misfire or AFM solenoid codes.\u003c\/li\u003e\n\u003cli\u003eCheck the oil level and confirm the grade matches GM's specification for your engine.\u003c\/li\u003e\n\u003cli\u003eSwitch the ignition off before inserting the module.\u003c\/li\u003e\n\u003cli\u003eLocate the OBD-II port under the driver-side dash.\u003c\/li\u003e\n\u003cli\u003ePush the module in until it is fully seated and sits clear of your knee and the pedals.\u003c\/li\u003e\n\u003cli\u003eStart the engine and let it idle before driving.\u003c\/li\u003e\n\u003cli\u003eTake a drive at steady light throttle, where AFM used to engage, and confirm the engine stays on all cylinders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe hardware behind AFM\u003c\/h2\u003e\u003cp\u003eAFM uses oil pressure as its control signal. A solenoid valve assembly under the intake manifold, in the valley cover, routes oil to collapsible lifters on the deactivating cylinders. Aerated or wrong-viscosity oil slows that signal. Keeping AFM off removes the switching, but every lifter still relies on the oiling system, so stick to the specified oil and intervals.\u003c\/p\u003e\u003ch2\u003eAfter-install checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eA light comes on:\u003c\/strong\u003e Pull the module, read the code, and send it with your VIN to support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStill dropping cylinders:\u003c\/strong\u003e Check the module is pushed fully into the port and that your engine is AFM-equipped.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNeed the port for diagnostics:\u003c\/strong\u003e Remove the module first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNoise or misfire persists:\u003c\/strong\u003e Have the engine inspected; the module only stops cylinder deactivation.\u003c\/p\u003e\u003ch2\u003eA short history of GM cylinder deactivation\u003c\/h2\u003e\u003cp\u003eGM first sold cylinder deactivation in 1981 with the Cadillac V8-6-4. The modern system was announced in 2003 as Displacement on Demand and reached production on the 2005 Chevrolet TrailBlazer EXT and GMC Envoy XL and XUV with the 5.3L V8, followed by the 5.3L LS4 in the Impala SS, Monte Carlo SS and Pontiac Grand Prix GXP. Renamed Active Fuel Management, it spread across GM's Gen IV and EcoTec3 truck engines. For the 2019 Silverado, GM introduced Dynamic Fuel Management, based on Tula Technology's Dynamic Skip Fire, which can deactivate cylinders individually.\u003c\/p\u003e\u003ch2\u003ePublished ratings for these engines\u003c\/h2\u003e\u003cp\u003eRatings and features for the engine codes that apply to this listing, as published for each engine (figures vary by vehicle and year):\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLY5\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335–340 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.95:1\u003c\/td\u003e\n\u003ctd\u003eiron block, AFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLC9\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.60:1 or 9.95:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLMG\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335–340 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.60:1\u003c\/td\u003e\n\u003ctd\u003eAFM, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL76\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e348–367 hp\u003c\/td\u003e\n\u003ctd\u003e376–385 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.40:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT on truck versions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLFA\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLZ1\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLV3\u003c\/td\u003e\n\u003ctd\u003e4.3L\u003c\/td\u003e\n\u003ctd\u003e285 hp\u003c\/td\u003e\n\u003ctd\u003e305 lb-ft\u003c\/td\u003e\n\u003ctd\u003en\/a\u003c\/td\u003e\n\u003ctd\u003eV6, AFM, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL83\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e355–376 hp\u003c\/td\u003e\n\u003ctd\u003e383–416 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.00:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e420 hp\u003c\/td\u003e\n\u003ctd\u003e460 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.50:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eQuestions owners ask\u003c\/h2\u003e\u003ch3\u003eWhich GMC Sierra 1500 years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Sierra 1500 2007–2018 with 4.3L V6, 5.3L V8, 6.0L V8, 6.2L V8. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Sierra 1500?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Sierra 1500 has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493783318900,"sku":"RC-AFM-DFM-01-16","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-16-1.jpg?v=1793172287"},{"product_id":"afm-dfm-vcm-disabler-gmc-sierra-denali-2010-2017-afm-dfm-disabler","title":"GMC Sierra Denali 2010-2017 6.2L V8 AFM\/DFM Disabler","description":"\u003cp\u003eA plug-in cylinder-deactivation disabler for the 2010–2017 GMC Sierra Denali. It goes into the OBD-II diagnostic port and keeps the factory Active Fuel Management system from engaging, so the engine runs on every cylinder all the time. Installation is plugging it in. Nothing is spliced, flashed or removed from the engine, and the factory system resumes as soon as the module is unplugged.\u003c\/p\u003e\u003ch2\u003eFitment by year and engine\u003c\/h2\u003e\u003cp\u003eEach row below is listed as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003e2010–2017 GMC Sierra Denali: 6.2L V8\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eAFM-equipped engine codes that GM used in these years and sizes:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eL86 (6.2L, 2014–2018, VIN 8th digit \"J\")\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eIn the same trucks and SUVs, GM also built V8s without AFM, for example the 5.3L LH9 (2010–2012 trucks, VIN code P), the 6.0L LY6 and L96 and the 6.2L L9H. Those engines never deactivate cylinders, so the module has nothing to manage on them. Check your code against both lists before you buy.\u003c\/p\u003e\u003cp\u003eIf your engine code is not in this list, email the VIN to support before ordering so we can confirm the application.\u003c\/p\u003e\u003ch2\u003eHow Active Fuel Management operates\u003c\/h2\u003e\u003cp\u003eGM's Active Fuel Management turns a V8 into a V4 at light load by deactivating cylinders 1, 7, 6 and 4. Solenoids route oil pressure to the lifters on those cylinders, which collapse and stop opening the valves. Fuel to those cylinders is cut at the same time. Press the throttle harder and the system brings all eight back.\u003c\/p\u003e\u003cp\u003eGM replaced AFM with Dynamic Fuel Management (DFM) on the 5.3L L84 and 6.2L L87 starting with the 2019 Silverado 1500 and Sierra 1500. The engines covered here use the earlier AFM design.\u003c\/p\u003e\u003ch2\u003eKeep up with oil changes\u003c\/h2\u003e\u003cp\u003eOil level and quality are worth watching on any AFM engine, because the deactivation hardware is hydraulic. Check the dipstick at fuel stops on high-mileage engines, follow GM's specified oil grade, and address oil-pressure warnings immediately. None of that changes with the module installed.\u003c\/p\u003e\u003ch2\u003eBefore installing\u003c\/h2\u003e\u003cp\u003eKeep the oil at the correct level and grade before and after installation. AFM lifters and their solenoids are oil-pressure operated, so an engine that is low on oil or running the wrong grade should be sorted out first. The module stops the switching, but it is not a substitute for maintenance or for repairing an engine that already has a fault.\u003c\/p\u003e\u003ch2\u003eWhat changes when you drive\u003c\/h2\u003e\u003cp\u003eExpect steadier behavior at part throttle and no change at wide-open throttle. Towing and hill climbing were already mostly done on all cylinders, so the biggest change is during relaxed cruising. Average fuel economy may drop slightly depending on how much of your driving is light-load highway time.\u003c\/p\u003e\u003ch2\u003eReasons to keep all cylinders running\u003c\/h2\u003e\u003cp\u003eMany drivers would rather have predictable response than the small economy gain from running on fewer cylinders, especially when towing, hauling or driving in hills. Keeping AFM off removes the mode changes entirely. It does not add horsepower, and it is not a fix for an engine that already has lifter or oil-consumption problems.\u003c\/p\u003e\u003ch2\u003eOther ways owners disable AFM\u003c\/h2\u003e\u003cp\u003eThere are three common ways to stop cylinder deactivation on GM engines: a plug-in module like this one, a custom tune that turns AFM off in the engine computer, or a mechanical delete that replaces the AFM lifters and related hardware and then needs a tune to match. The module is the only one of the three that needs no tools and no engine-computer changes, and it is the only one you can undo by unplugging it. It does not replace failed lifters; if hardware is already damaged, the repair comes first.\u003c\/p\u003e\u003ch2\u003eLiving with it\u003c\/h2\u003e\u003cp\u003eBecause it occupies the OBD-II port, unplug the module before connecting a scan tool, an insurance logger or an emissions-test probe, then plug it back in afterwards. Make sure it sits clear of your left knee and the pedals, and that the housing is fully seated in the port.\u003c\/p\u003e\u003ch2\u003eHow to confirm your engine code\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2010–2017 GMC Sierra Denali).\u003c\/li\u003e\n\u003cli\u003eFind your engine code. On GM vehicles before the 2018 model year, the Service Parts Identification label (usually inside the glovebox on these trucks and SUVs) lists the three-character RPO codes, and the engine code starts with L. From 2018, GM moved that data into a QR code on the certification label on the driver-side door pillar. The 8th character of the VIN also identifies the engine.\u003c\/li\u003e\n\u003cli\u003eNo check-engine light is on, and oil level and pressure are normal.\u003c\/li\u003e\n\u003cli\u003eEngine swaps, custom tunes and replaced ECUs need a fitment check from support before ordering.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year and engine\u003c\/h2\u003e\u003cp\u003eEach model year from the fitment data, with the AFM engine codes GM used for that year and displacement:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eModel background\u003c\/h2\u003e\u003cp\u003eGM's full-size trucks and SUVs from the 2007 model year rode on the GMT900 platform with Gen IV V8s. The 2014 Silverado 1500 and Sierra 1500, and the 2015 Tahoe, Suburban, Yukon and Escalade, moved to the K2XX platform with the EcoTec3 engines (4.3L LV3, 5.3L L83, 6.2L L86). Both generations used AFM on most gasoline V8s, so the engine code decides fitment more reliably than the model name.\u003c\/p\u003e\u003ch2\u003eAfter-install checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eA light comes on:\u003c\/strong\u003e Pull the module, read the code, and send it with your VIN to support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStill dropping cylinders:\u003c\/strong\u003e Check the module is pushed fully into the port and that your engine is AFM-equipped.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNeed the port for diagnostics:\u003c\/strong\u003e Remove the module first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNoise or misfire persists:\u003c\/strong\u003e Have the engine inspected; the module only stops cylinder deactivation.\u003c\/p\u003e\u003ch2\u003eEngine code notes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eL86\u003c\/strong\u003e: 6.2L EcoTec3 V8 with direct injection and variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eThe hardware behind AFM\u003c\/h2\u003e\u003cp\u003eAFM uses oil pressure as its control signal. A solenoid valve assembly under the intake manifold, in the valley cover, routes oil to collapsible lifters on the deactivating cylinders. Aerated or wrong-viscosity oil slows that signal. Keeping AFM off removes the switching, but every lifter still relies on the oiling system, so stick to the specified oil and intervals.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003ch2\u003eThe 6.2L V8 story: L92, L9H and L94\u003c\/h2\u003e\u003cp\u003eNot every GMT900 6.2L has cylinder deactivation. The L92 (2007–2008 Escalade, Yukon Denali and related models) had no working AFM, and the 2009 flex-fuel L9H had none either. AFM arrived on the 6.2L for 2010 as the L94 in the Escalade and Yukon Denali family. Published application lists show the 2007–2013 Sierra 1500 Denali with the L92\/L9H instead. The 2014-on EcoTec3 6.2L L86 brought AFM to the newer trucks and SUVs.\u003c\/p\u003e\u003ch2\u003eA short history of GM cylinder deactivation\u003c\/h2\u003e\u003cp\u003eGM's first attempt was the 1981 Cadillac V8-6-4. Displacement on Demand followed in the 2005 model year on the 5.3L TrailBlazer EXT and Envoy XL\/XUV and on LS4-powered front-drive cars, and was renamed Active Fuel Management as it moved into the full-size trucks and SUVs. Dynamic Fuel Management, developed from Tula Technology's Dynamic Skip Fire, took over on the 2019 Silverado 1500 and Sierra 1500 V8s.\u003c\/p\u003e\u003ch2\u003ePreparation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClear up any warning lights first: the module is for a healthy engine.\u003c\/li\u003e\n\u003cli\u003eConfirm oil level and grade.\u003c\/li\u003e\n\u003cli\u003eTurn everything off.\u003c\/li\u003e\n\u003cli\u003ePlug the module into the OBD-II port.\u003c\/li\u003e\n\u003cli\u003eCheck it is fully seated and cannot be kicked loose.\u003c\/li\u003e\n\u003cli\u003eStart the engine.\u003c\/li\u003e\n\u003cli\u003eCruise lightly on a level road to confirm all cylinders stay active.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePublished ratings for these engines\u003c\/h2\u003e\u003cp\u003ePublished output and key features of the relevant engines. Exact ratings depend on the vehicle and model year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e420 hp\u003c\/td\u003e\n\u003ctd\u003e460 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.50:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Sierra Denali?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eWhich GMC Sierra Denali years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Sierra Denali 2010–2017 with 6.2L V8. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Sierra Denali has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch2\u003eShipping and support\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493783351668,"sku":"RC-AFM-DFM-01-17","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-17-1.jpg?v=1793172296"},{"product_id":"afm-dfm-vcm-disabler-gmc-yukon-2007-2018-afm-dfm-disabler","title":"GMC Yukon 2007-2018 5.3L\/6.0L\/6.2L V8 AFM\/DFM Disabler","description":"\u003cp\u003eA plug-in cylinder-deactivation disabler for the 2007–2018 GMC Yukon. It goes into the OBD-II diagnostic port and keeps the factory Active Fuel Management system from engaging, so the engine runs on every cylinder all the time. There is no tune involved and nothing inside the engine is changed. Pull it out of the port and the factory strategy returns.\u003c\/p\u003e\u003ch2\u003eVehicles, years and engines\u003c\/h2\u003e\u003cp\u003eEach row below is listed as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2007–2009 GMC Yukon: 5.3L V8 \/ 6.0L V8\u003c\/li\u003e\n\u003cli\u003e2010–2014 GMC Yukon: 5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2015–2017 GMC Yukon: 5.3L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2018 GMC Yukon: 5.3L V8\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAFM-equipped engine codes that GM used in these years and sizes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLY5 (5.3L, 2007–2009, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003cli\u003eLC9 (5.3L, 2007–2011, VIN 8th digit \"3\")\u003c\/li\u003e\n\u003cli\u003eLMG (5.3L, 2007–2014, VIN 8th digit \"0\")\u003c\/li\u003e\n\u003cli\u003eL76 (6.0L, 2007–2009, VIN 8th digit \"Y\")\u003c\/li\u003e\n\u003cli\u003eLFA (6.0L, 2008–2009, VIN 8th digit \"5\")\u003c\/li\u003e\n\u003cli\u003eLZ1 (6.0L, 2010–2013, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003cli\u003eL83 (5.3L, 2014–2018, VIN 8th digit \"C\")\u003c\/li\u003e\n\u003cli\u003eL86 (6.2L, 2014–2018, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn the same trucks and SUVs, GM also built V8s without AFM, for example the 5.3L LH9 (2010–2012 trucks, VIN code P), the 6.0L LY6 and L96 and the 6.2L L9H. Those engines never deactivate cylinders, so the module has nothing to manage on them. Check your code against both lists before you buy.\u003c\/p\u003e\u003cp\u003eIf your engine code is not in this list, email the VIN to support before ordering so we can confirm the application.\u003c\/p\u003e\u003ch2\u003eHow Active Fuel Management operates\u003c\/h2\u003e\u003cp\u003eOn AFM V8 engines, the computer shuts off fuel and holds the valves closed on cylinders 1, 7, 6 and 4 when the load is light, so the engine runs as a V4. It does this through special collapsible lifters on those cylinders, fed by oil-pressure solenoids. When you ask for more power, the lifters lock again and all eight cylinders fire. GM describes this behavior in its service bulletin on AFM and DFM operation.\u003c\/p\u003e\u003cp\u003eGM replaced AFM with Dynamic Fuel Management (DFM) on the 5.3L L84 and 6.2L L87 starting with the 2019 Silverado 1500 and Sierra 1500. The engines covered here use the earlier AFM design.\u003c\/p\u003e\u003ch2\u003eWhat owners are after\u003c\/h2\u003e\u003cp\u003eOwners usually disable AFM for one of three reasons: they notice the change between modes as a vibration or exhaust drone, they want a consistent throttle response while towing or climbing grades, or they want to limit how often the deactivation lifters switch. Keeping the engine on all cylinders addresses all three. The tradeoff is that you give up whatever fuel saving AFM was providing in light cruising.\u003c\/p\u003e\u003ch2\u003eDiagnose existing problems first\u003c\/h2\u003e\u003cp\u003eKeep the oil at the correct level and grade before and after installation. AFM lifters and their solenoids are oil-pressure operated, so an engine that is low on oil or running the wrong grade should be sorted out first. The module stops the switching, but it is not a substitute for maintenance or for repairing an engine that already has a fault.\u003c\/p\u003e\u003ch2\u003eKeep up with oil changes\u003c\/h2\u003e\u003cp\u003eDisabling cylinder deactivation does not replace normal maintenance. Use the oil grade and change interval GM lists for your engine, watch the oil level between changes, and repair leaks promptly. The valvetrain on these engines depends on clean oil at proper pressure in every mode.\u003c\/p\u003e\u003ch2\u003eLiving with it\u003c\/h2\u003e\u003cp\u003eBecause it occupies the OBD-II port, unplug the module before connecting a scan tool, an insurance logger or an emissions-test probe, then plug it back in afterwards. Make sure it sits clear of your left knee and the pedals, and that the housing is fully seated in the port.\u003c\/p\u003e\u003ch2\u003eModule, tune or delete kit\u003c\/h2\u003e\u003cp\u003eOwners who want AFM gone for good sometimes go the mechanical route: non-AFM lifters, a matching camshaft and a retune. That is a large job and it is permanent. A tuner can also disable AFM in the engine computer. The plug-in module sits at the other end of the scale: no parts replaced, no software rewritten, and back to factory with one pull. It is meant for engines that run well and simply should not switch modes.\u003c\/p\u003e\u003ch2\u003eWhat changes when you drive\u003c\/h2\u003e\u003cp\u003eThe difference shows up in light-load driving: steady highway speeds, gentle acceleration and coasting down small grades. Those are the moments when AFM used to drop cylinders. With the module in, engine behavior there should feel the same as under heavier throttle. Full-throttle performance does not change, because AFM was never active at full throttle anyway.\u003c\/p\u003e\u003ch2\u003eHow to confirm your engine code\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2007–2018 GMC Yukon).\u003c\/li\u003e\n\u003cli\u003eThe quickest checks are the 8th digit of your VIN, which identifies the engine, and the RPO list on the Service Parts Identification label (glovebox or trunk on most pre-2018 GM models, QR code on the driver-door pillar label from 2018).\u003c\/li\u003e\n\u003cli\u003eThe engine runs cleanly with no stored misfire or AFM codes.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has an engine swap, an aftermarket tune or a replacement engine computer, contact support first.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table with engine codes\u003c\/h2\u003e\u003cp\u003eThe full fitment data, by year, alongside matching AFM engine codes:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLC9, LMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLC9, LMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, L83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003eL83\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eAbout these engine codes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLY5\u003c\/strong\u003e: iron-block 5.3L Vortec used in 2007–2009 trucks and SUVs, without variable valve timing or flex-fuel capability. VIN engine digit \"J\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLC9\u003c\/strong\u003e: aluminum-block 5.3L flex-fuel (E85-capable) truck and SUV engine, with variable valve timing added from 2010. VIN engine digit \"3\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLMG\u003c\/strong\u003e: 5.3L flex-fuel truck and SUV engine, with variable valve timing from 2010. VIN engine digit \"0\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL76\u003c\/strong\u003e: aluminum-block 6.0L V8 with rectangular-port heads; the 2007–2009 truck version also has variable valve timing. VIN engine digit \"Y\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLFA\u003c\/strong\u003e: 6.0L V8 used in the Two-Mode Hybrid trucks and SUVs, with variable valve timing. VIN engine digit \"5\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLZ1\u003c\/strong\u003e: 6.0L hybrid V8 for 2010–2013 Two-Mode Hybrid models, flex-fuel capable with variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL83\u003c\/strong\u003e: 5.3L EcoTec3 V8 with direct injection, variable valve timing and flex-fuel capability. VIN engine digit \"C\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL86\u003c\/strong\u003e: 6.2L EcoTec3 V8 with direct injection and variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePreparation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRead codes first; repair existing misfire or lifter faults before relying on the module.\u003c\/li\u003e\n\u003cli\u003eTop up the oil to the full mark with the correct grade.\u003c\/li\u003e\n\u003cli\u003eIgnition off.\u003c\/li\u003e\n\u003cli\u003eFind the OBD-II port under the dash.\u003c\/li\u003e\n\u003cli\u003eSeat the module fully and keep it away from the pedals.\u003c\/li\u003e\n\u003cli\u003eStart the engine.\u003c\/li\u003e\n\u003cli\u003eTest at light cruise and check that the reduced-cylinder mode no longer appears.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTroubleshooting\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWarning light appears:\u003c\/strong\u003e Remove the module, scan for codes and email support with the code and VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMode changes still felt:\u003c\/strong\u003e Re-seat the module and confirm your engine code is on the AFM list for this listing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eShop cannot reach the diagnostic port:\u003c\/strong\u003e Unplug the module for the visit and refit it afterwards.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLifter noise or misfire codes:\u003c\/strong\u003e These point to existing engine faults that need diagnosis and repair.\u003c\/p\u003e\u003ch2\u003eWhich 6.2L engines have AFM\u003c\/h2\u003e\u003cp\u003eGM's 6.2L truck V8 changed three times in the GMT900 years. The L92 debuted in the 2007 Cadillac Escalade; engines built before April 1, 2006 carried AFM hardware that was never switched on, and later ones had none. For 2009 the engine became flex-fuel as the L9H, still without AFM. For 2010 GM added Active Fuel Management, creating the L94 used in the Escalade and Yukon Denali models. The 2007–2013 Sierra 1500 Denali is listed with the L92\/L9H family rather than the L94. From 2014 on, the trucks use the EcoTec3 6.2L L86, which has AFM.\u003c\/p\u003e\u003ch2\u003eWhere AFM came from\u003c\/h2\u003e\u003cp\u003eCylinder deactivation at GM goes back to the 1981 Cadillac V8-6-4. The current approach began as Displacement on Demand, announced in 2003 for the 2005 TrailBlazer EXT, Envoy XL and Envoy XUV 5.3L, then the front-drive 5.3L LS4 cars. Under the Active Fuel Management name it became common on Gen IV and EcoTec3 truck V8s. The 2010 Camaro SS automatic got it on the L99. In 2019, Dynamic Fuel Management replaced it on the new Silverado and Sierra 1500 V8s.\u003c\/p\u003e\u003ch2\u003eEngine data at a glance\u003c\/h2\u003e\u003cp\u003ePublished output and key features of the relevant engines. Exact ratings depend on the vehicle and model year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLY5\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335–340 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.95:1\u003c\/td\u003e\n\u003ctd\u003eiron block, AFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLC9\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.60:1 or 9.95:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLMG\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335–340 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.60:1\u003c\/td\u003e\n\u003ctd\u003eAFM, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL76\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e348–367 hp\u003c\/td\u003e\n\u003ctd\u003e376–385 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.40:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT on truck versions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLFA\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLZ1\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL83\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e355–376 hp\u003c\/td\u003e\n\u003ctd\u003e383–416 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.00:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e420 hp\u003c\/td\u003e\n\u003ctd\u003e460 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.50:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eThe hardware behind AFM\u003c\/h2\u003e\u003cp\u003eAn AFM engine has a solenoid valve assembly in the engine valley cover. Its solenoids send pressurized oil to special hydraulic roller lifters (supplied by Eaton and Delphi) on the deactivating cylinders, which then stop opening the valves. Because the system runs on oil pressure, oil quality matters: worn-out anti-foam additives, the wrong viscosity or overdue changes can delay the oil signal and upset the switching. The module stops the switching; the oil system still needs proper care.\u003c\/p\u003e\u003ch2\u003eModel background\u003c\/h2\u003e\u003cp\u003eGM's full-size trucks and SUVs from the 2007 model year rode on the GMT900 platform with Gen IV V8s. The 2014 Silverado 1500 and Sierra 1500, and the 2015 Tahoe, Suburban, Yukon and Escalade, moved to the K2XX platform with the EcoTec3 engines (4.3L LV3, 5.3L L83, 6.2L L86). Both generations used AFM on most gasoline V8s, so the engine code decides fitment more reliably than the model name.\u003c\/p\u003e\u003ch2\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eWhich GMC Yukon years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Yukon 2007–2018 with 5.3L V8, 6.0L V8, 6.2L V8. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Yukon?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Yukon has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493783384436,"sku":"RC-AFM-DFM-01-18","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-18-1.jpg?v=1793172304"},{"product_id":"afm-dfm-vcm-disabler-gmc-yukon-xl-1500-2007-2018-afm-dfm-disabler","title":"GMC Yukon XL 1500 2007-2018 5.3L\/6.0L\/6.2L V8 AFM\/DFM Disabler","description":"\u003cp\u003eFor the 2007–2018 GMC Yukon XL 1500: an OBD-II plug-in module that stops the engine from switching into cylinder-deactivation mode. The engine stays on all cylinders during cruising and light throttle, where AFM would normally shut half of them down. No tools, no wiring and no reflash of the engine computer. Unplug it and AFM works again as it did from the factory.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eEach row below is listed as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2007–2009 GMC Yukon XL 1500: 5.3L V8 \/ 6.0L V8\u003c\/li\u003e\n\u003cli\u003e2010–2014 GMC Yukon XL 1500: 5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2015–2017 GMC Yukon XL 1500: 5.3L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2018 GMC Yukon XL 1500: 5.3L V8\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eGM engine codes with AFM that line up with these years and displacements:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eLY5 (5.3L, 2007–2009, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003cli\u003eLC9 (5.3L, 2007–2011, VIN 8th digit \"3\")\u003c\/li\u003e\n\u003cli\u003eLMG (5.3L, 2007–2014, VIN 8th digit \"0\")\u003c\/li\u003e\n\u003cli\u003eL76 (6.0L, 2007–2009, VIN 8th digit \"Y\")\u003c\/li\u003e\n\u003cli\u003eLFA (6.0L, 2008–2009, VIN 8th digit \"5\")\u003c\/li\u003e\n\u003cli\u003eLZ1 (6.0L, 2010–2013, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003cli\u003eL83 (5.3L, 2014–2018, VIN 8th digit \"C\")\u003c\/li\u003e\n\u003cli\u003eL86 (6.2L, 2014–2018, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn the same trucks and SUVs, GM also built V8s without AFM, for example the 5.3L LH9 (2010–2012 trucks, VIN code P), the 6.0L LY6 and L96 and the 6.2L L9H. Those engines never deactivate cylinders, so the module has nothing to manage on them. Check your code against both lists before you buy.\u003c\/p\u003e\u003cp\u003eAn engine code that is not listed here does not automatically rule the vehicle out, but send us the VIN first so we can check.\u003c\/p\u003e\u003ch2\u003eHow GM cylinder deactivation works\u003c\/h2\u003e\u003cp\u003eGM's Active Fuel Management turns a V8 into a V4 at light load by deactivating cylinders 1, 7, 6 and 4. Solenoids route oil pressure to the lifters on those cylinders, which collapse and stop opening the valves. Fuel to those cylinders is cut at the same time. Press the throttle harder and the system brings all eight back.\u003c\/p\u003e\u003cp\u003eFor the 2019 redesign of the Silverado 1500 and Sierra 1500, GM introduced Dynamic Fuel Management on the 5.3L L84 and 6.2L L87, which can run on 17 different cylinder patterns. That is a different system from the AFM covered by this listing.\u003c\/p\u003e\u003ch2\u003eHow this differs from an AFM delete kit\u003c\/h2\u003e\u003cp\u003eA mechanical AFM delete swaps the deactivating lifters (and often the camshaft and lifter oil manifold) for non-AFM parts and requires a tune afterwards. A tune alone can switch AFM off in software. This module works through the OBD-II port instead, so the engine hardware and its calibration stay stock. That makes it the easiest option to reverse, and the right one only when the engine is mechanically healthy.\u003c\/p\u003e\u003ch2\u003eKeep up with oil changes\u003c\/h2\u003e\u003cp\u003eAFM lifters and the solenoids that control them run on engine oil pressure. Keeping the oil at the right level, using the grade GM specifies on the oil filler cap or in the owner's manual, and changing it on schedule matters whether or not AFM is active. The module changes when cylinders deactivate; it does not change the oiling system.\u003c\/p\u003e\u003ch2\u003eWhat to expect on the road\u003c\/h2\u003e\u003cp\u003eThe difference shows up in light-load driving: steady highway speeds, gentle acceleration and coasting down small grades. Those are the moments when AFM used to drop cylinders. With the module in, engine behavior there should feel the same as under heavier throttle. Full-throttle performance does not change, because AFM was never active at full throttle anyway.\u003c\/p\u003e\u003ch2\u003eIf the engine already has symptoms\u003c\/h2\u003e\u003cp\u003eScan for stored codes before you plug it in. Misfire codes on the deactivation cylinders, an AFM solenoid circuit code, or a lifter noise are signs of an existing problem that should be repaired first. The module is meant for a healthy engine where you simply do not want cylinder deactivation.\u003c\/p\u003e\u003ch2\u003ePractical notes\u003c\/h2\u003e\u003cp\u003eThe module uses the OBD-II port, so it has to come out whenever a technician or an inspection station needs the port. Plugging it back in restores the all-cylinder mode. Route it so the driver cannot kick it loose.\u003c\/p\u003e\u003ch2\u003eReasons to keep all cylinders running\u003c\/h2\u003e\u003cp\u003eThe usual complaints are a drone or shudder in reduced-cylinder mode, a slight hesitation when the engine switches back, and a general wish to keep the valvetrain doing the same thing all the time. With the module installed, the engine stays in full-cylinder mode, so those transitions stop. Expect light-load fuel economy to be closer to an engine without AFM.\u003c\/p\u003e\u003ch2\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2007–2018 GMC Yukon XL 1500).\u003c\/li\u003e\n\u003cli\u003eThe quickest checks are the 8th digit of your VIN, which identifies the engine, and the RPO list on the Service Parts Identification label (glovebox or trunk on most pre-2018 GM models, QR code on the driver-door pillar label from 2018).\u003c\/li\u003e\n\u003cli\u003eThe engine runs cleanly with no stored misfire or AFM codes.\u003c\/li\u003e\n\u003cli\u003eEngine swaps, custom tunes and replaced ECUs need a fitment check from support before ordering.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eThe full fitment data, by year, alongside matching AFM engine codes:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8\u003c\/td\u003e\n\u003ctd\u003eLY5, LC9, LMG, L76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLC9, LMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLC9, LMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, LZ1\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eLMG, L83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL83, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003eL83\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003e6.2L engine history\u003c\/h2\u003e\u003cp\u003eNot every GMT900 6.2L has cylinder deactivation. The L92 (2007–2008 Escalade, Yukon Denali and related models) had no working AFM, and the 2009 flex-fuel L9H had none either. AFM arrived on the 6.2L for 2010 as the L94 in the Escalade and Yukon Denali family. Published application lists show the 2007–2013 Sierra 1500 Denali with the L92\/L9H instead. The 2014-on EcoTec3 6.2L L86 brought AFM to the newer trucks and SUVs.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003ch2\u003ePublished ratings for these engines\u003c\/h2\u003e\u003cp\u003eRatings and features for the engine codes that apply to this listing, as published for each engine (figures vary by vehicle and year):\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLY5\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335–340 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.95:1\u003c\/td\u003e\n\u003ctd\u003eiron block, AFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLC9\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.60:1 or 9.95:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLMG\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e315–320 hp\u003c\/td\u003e\n\u003ctd\u003e335–340 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.60:1\u003c\/td\u003e\n\u003ctd\u003eAFM, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL76\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e348–367 hp\u003c\/td\u003e\n\u003ctd\u003e376–385 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.40:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT on truck versions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLFA\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLZ1\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL83\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e355–376 hp\u003c\/td\u003e\n\u003ctd\u003e383–416 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.00:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e420 hp\u003c\/td\u003e\n\u003ctd\u003e460 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.50:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eModel background\u003c\/h2\u003e\u003cp\u003eGM's full-size trucks and SUVs from the 2007 model year rode on the GMT900 platform with Gen IV V8s. The 2014 Silverado 1500 and Sierra 1500, and the 2015 Tahoe, Suburban, Yukon and Escalade, moved to the K2XX platform with the EcoTec3 engines (4.3L LV3, 5.3L L83, 6.2L L86). Both generations used AFM on most gasoline V8s, so the engine code decides fitment more reliably than the model name.\u003c\/p\u003e\u003ch2\u003eA short history of GM cylinder deactivation\u003c\/h2\u003e\u003cp\u003eCylinder deactivation at GM goes back to the 1981 Cadillac V8-6-4. The current approach began as Displacement on Demand, announced in 2003 for the 2005 TrailBlazer EXT, Envoy XL and Envoy XUV 5.3L, then the front-drive 5.3L LS4 cars. Under the Active Fuel Management name it became common on Gen IV and EcoTec3 truck V8s. The 2010 Camaro SS automatic got it on the L99. In 2019, Dynamic Fuel Management replaced it on the new Silverado and Sierra 1500 V8s.\u003c\/p\u003e\u003ch2\u003eEngine code notes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLY5\u003c\/strong\u003e: iron-block 5.3L Vortec used in 2007–2009 trucks and SUVs, without variable valve timing or flex-fuel capability. VIN engine digit \"J\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLC9\u003c\/strong\u003e: aluminum-block 5.3L flex-fuel (E85-capable) truck and SUV engine, with variable valve timing added from 2010. VIN engine digit \"3\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLMG\u003c\/strong\u003e: 5.3L flex-fuel truck and SUV engine, with variable valve timing from 2010. VIN engine digit \"0\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL76\u003c\/strong\u003e: aluminum-block 6.0L V8 with rectangular-port heads; the 2007–2009 truck version also has variable valve timing. VIN engine digit \"Y\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLFA\u003c\/strong\u003e: 6.0L V8 used in the Two-Mode Hybrid trucks and SUVs, with variable valve timing. VIN engine digit \"5\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLZ1\u003c\/strong\u003e: 6.0L hybrid V8 for 2010–2013 Two-Mode Hybrid models, flex-fuel capable with variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL83\u003c\/strong\u003e: 5.3L EcoTec3 V8 with direct injection, variable valve timing and flex-fuel capability. VIN engine digit \"C\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL86\u003c\/strong\u003e: 6.2L EcoTec3 V8 with direct injection and variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAfter-install checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eA light comes on:\u003c\/strong\u003e Pull the module, read the code, and send it with your VIN to support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStill dropping cylinders:\u003c\/strong\u003e Check the module is pushed fully into the port and that your engine is AFM-equipped.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNeed the port for diagnostics:\u003c\/strong\u003e Remove the module first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNoise or misfire persists:\u003c\/strong\u003e Have the engine inspected; the module only stops cylinder deactivation.\u003c\/p\u003e\u003ch2\u003ePreparation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClear up any warning lights first: the module is for a healthy engine.\u003c\/li\u003e\n\u003cli\u003eConfirm oil level and grade.\u003c\/li\u003e\n\u003cli\u003eTurn everything off.\u003c\/li\u003e\n\u003cli\u003ePlug the module into the OBD-II port.\u003c\/li\u003e\n\u003cli\u003eCheck it is fully seated and cannot be kicked loose.\u003c\/li\u003e\n\u003cli\u003eStart the engine.\u003c\/li\u003e\n\u003cli\u003eCruise lightly on a level road to confirm all cylinders stay active.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat is inside an AFM engine\u003c\/h2\u003e\u003cp\u003eInside the valley of an AFM V8 sits a solenoid assembly that feeds oil to two-stage hydraulic lifters on the cylinders that shut down. When a solenoid opens, the lifter collapses and the valve stays closed. The whole system depends on oil pressure, so oil grade, level and change intervals affect how it behaves. With the module installed, the switching no longer happens, but the lifters are still oil-fed and still need clean oil at the right pressure.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Yukon XL 1500 has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eWhich GMC Yukon XL 1500 years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Yukon XL 1500 2007–2018 with 5.3L V8, 6.0L V8, 6.2L V8. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Yukon XL 1500?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch2\u003eShipping, returns and warranty\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493784269172,"sku":"RC-AFM-DFM-01-19","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-19-1.jpg?v=1793172315"},{"product_id":"afm-dfm-vcm-disabler-gmc-yukon-denali-2007-2017-afm-dfm-disabler","title":"GMC Yukon Denali 2007-2017 6.0L\/6.2L V8 AFM\/DFM Disabler","description":"\u003cp\u003eThis AFM\/DFM disabler plugs into the OBD-II port of the 2007–2017 GMC Yukon Denali. Its job is to keep the engine running on all cylinders instead of dropping into the reduced-cylinder mode that GM's Active Fuel Management uses at light load. Installation is plugging it in. Nothing is spliced, flashed or removed from the engine, and the factory system resumes as soon as the module is unplugged.\u003c\/p\u003e\u003ch2\u003eVehicles, years and engines\u003c\/h2\u003e\u003cp\u003eThe fitment table for this part (all rows marked 100% fitment match):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2007–2009 GMC Yukon Denali: 6.0L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2010–2017 GMC Yukon Denali: 6.2L V8\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eGM engine codes with AFM that line up with these years and displacements:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eL76 (6.0L, 2007–2009, VIN 8th digit \"Y\")\u003c\/li\u003e\n\u003cli\u003eLFA (6.0L, 2008–2009, VIN 8th digit \"5\")\u003c\/li\u003e\n\u003cli\u003eL94 (6.2L, 2010–2014, VIN 8th digit \"F\")\u003c\/li\u003e\n\u003cli\u003eL86 (6.2L, 2014–2018, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn the same trucks and SUVs, GM also built V8s without AFM, for example the 5.3L LH9 (2010–2012 trucks, VIN code P), the 6.0L LY6 and L96 and the 6.2L L9H. Those engines never deactivate cylinders, so the module has nothing to manage on them. If your RPO list shows one of those codes, contact us before ordering.\u003c\/p\u003e\u003cp\u003eIf your engine code is not in this list, email the VIN to support before ordering so we can confirm the application.\u003c\/p\u003e\u003ch2\u003eThe factory system in brief\u003c\/h2\u003e\u003cp\u003eGM's Active Fuel Management turns a V8 into a V4 at light load by deactivating cylinders 1, 7, 6 and 4. Solenoids route oil pressure to the lifters on those cylinders, which collapse and stop opening the valves. Fuel to those cylinders is cut at the same time. Press the throttle harder and the system brings all eight back.\u003c\/p\u003e\u003cp\u003eFor the 2019 redesign of the Silverado 1500 and Sierra 1500, GM introduced Dynamic Fuel Management on the 5.3L L84 and 6.2L L87, which can run on 17 different cylinder patterns. That is a different system from the AFM covered by this listing.\u003c\/p\u003e\u003ch2\u003eOther ways owners disable AFM\u003c\/h2\u003e\u003cp\u003eOwners who want AFM gone for good sometimes go the mechanical route: non-AFM lifters, a matching camshaft and a retune. That is a large job and it is permanent. A tuner can also disable AFM in the engine computer. The plug-in module sits at the other end of the scale: no parts replaced, no software rewritten, and back to factory with one pull. It is meant for engines that run well and simply should not switch modes.\u003c\/p\u003e\u003ch2\u003eScan tools and inspections\u003c\/h2\u003e\u003cp\u003eLeave it in the port for everyday driving. When the vehicle goes in for service or an emissions check, remove it so the shop has normal access to the diagnostic connector, then reinstall it.\u003c\/p\u003e\u003ch2\u003eBefore installing\u003c\/h2\u003e\u003cp\u003eThis module prevents mode switching. It does not repair anything. If the engine already has a ticking lifter, misfire codes, low oil pressure or high oil consumption, have it diagnosed before relying on the module. Those symptoms need a mechanical repair, and keeping AFM off will not reverse damage that has already happened.\u003c\/p\u003e\u003ch2\u003eEngine care\u003c\/h2\u003e\u003cp\u003eDisabling cylinder deactivation does not replace normal maintenance. Use the oil grade and change interval GM lists for your engine, watch the oil level between changes, and repair leaks promptly. The valvetrain on these engines depends on clean oil at proper pressure in every mode.\u003c\/p\u003e\u003ch2\u003eWhat owners are after\u003c\/h2\u003e\u003cp\u003eThe usual complaints are a drone or shudder in reduced-cylinder mode, a slight hesitation when the engine switches back, and a general wish to keep the valvetrain doing the same thing all the time. With the module installed, the engine stays in full-cylinder mode, so those transitions stop. Expect light-load fuel economy to be closer to an engine without AFM.\u003c\/p\u003e\u003ch2\u003eAfter installation\u003c\/h2\u003e\u003cp\u003eExpect steadier behavior at part throttle and no change at wide-open throttle. Towing and hill climbing were already mostly done on all cylinders, so the biggest change is during relaxed cruising. Average fuel economy may drop slightly depending on how much of your driving is light-load highway time.\u003c\/p\u003e\u003ch2\u003eConfirm your engine\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2007–2017 GMC Yukon Denali).\u003c\/li\u003e\n\u003cli\u003eLook up the engine RPO code. Older GM vehicles print it on the Service Parts Identification sticker, often in the glovebox; 2018 and newer GM models carry it in a QR code on the driver-side B-pillar label. You can also read the 8th digit of the VIN, which is the engine code.\u003c\/li\u003e\n\u003cli\u003eNo check-engine light is on, and oil level and pressure are normal.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has an engine swap, an aftermarket tune or a replacement engine computer, contact support first.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year and engine\u003c\/h2\u003e\u003cp\u003eEach model year from the fitment data, with the AFM engine codes GM used for that year and displacement:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL76\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon Denali\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003ePlatform and engine notes\u003c\/h2\u003e\u003cp\u003eGM's full-size trucks and SUVs from the 2007 model year rode on the GMT900 platform with Gen IV V8s. The 2014 Silverado 1500 and Sierra 1500, and the 2015 Tahoe, Suburban, Yukon and Escalade, moved to the K2XX platform with the EcoTec3 engines (4.3L LV3, 5.3L L83, 6.2L L86). Both generations used AFM on most gasoline V8s, so the engine code decides fitment more reliably than the model name.\u003c\/p\u003e\u003ch2\u003ePublished ratings for these engines\u003c\/h2\u003e\u003cp\u003ePublished output and key features of the relevant engines. Exact ratings depend on the vehicle and model year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eL76\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e348–367 hp\u003c\/td\u003e\n\u003ctd\u003e376–385 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.40:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT on truck versions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLFA\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e403 hp\u003c\/td\u003e\n\u003ctd\u003e417 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.40:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e420 hp\u003c\/td\u003e\n\u003ctd\u003e460 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.50:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003ch2\u003ePreparation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eScan the engine for stored codes and note any misfire or AFM solenoid codes.\u003c\/li\u003e\n\u003cli\u003eCheck the oil level and confirm the grade matches GM's specification for your engine.\u003c\/li\u003e\n\u003cli\u003eSwitch the ignition off before inserting the module.\u003c\/li\u003e\n\u003cli\u003eLocate the OBD-II port under the driver-side dash.\u003c\/li\u003e\n\u003cli\u003ePush the module in until it is fully seated and sits clear of your knee and the pedals.\u003c\/li\u003e\n\u003cli\u003eStart the engine and let it idle before driving.\u003c\/li\u003e\n\u003cli\u003eTake a drive at steady light throttle, where AFM used to engage, and confirm the engine stays on all cylinders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe engines behind the codes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eL76\u003c\/strong\u003e: aluminum-block 6.0L V8 with rectangular-port heads; the 2007–2009 truck version also has variable valve timing. VIN engine digit \"Y\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLFA\u003c\/strong\u003e: 6.0L V8 used in the Two-Mode Hybrid trucks and SUVs, with variable valve timing. VIN engine digit \"5\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL94\u003c\/strong\u003e: 6.2L V8 with variable valve timing and flex-fuel capability, used in Escalade and Yukon Denali models. VIN engine digit \"F\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL86\u003c\/strong\u003e: 6.2L EcoTec3 V8 with direct injection and variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere AFM came from\u003c\/h2\u003e\u003cp\u003eGM first sold cylinder deactivation in 1981 with the Cadillac V8-6-4. The modern system was announced in 2003 as Displacement on Demand and reached production on the 2005 Chevrolet TrailBlazer EXT and GMC Envoy XL and XUV with the 5.3L V8, followed by the 5.3L LS4 in the Impala SS, Monte Carlo SS and Pontiac Grand Prix GXP. Renamed Active Fuel Management, it spread across GM's Gen IV and EcoTec3 truck engines. For the 2019 Silverado, GM introduced Dynamic Fuel Management, based on Tula Technology's Dynamic Skip Fire, which can deactivate cylinders individually.\u003c\/p\u003e\u003ch2\u003eThe 6.2L V8 story: L92, L9H and L94\u003c\/h2\u003e\u003cp\u003eNot every GMT900 6.2L has cylinder deactivation. The L92 (2007–2008 Escalade, Yukon Denali and related models) had no working AFM, and the 2009 flex-fuel L9H had none either. AFM arrived on the 6.2L for 2010 as the L94 in the Escalade and Yukon Denali family. Published application lists show the 2007–2013 Sierra 1500 Denali with the L92\/L9H instead. The 2014-on EcoTec3 6.2L L86 brought AFM to the newer trucks and SUVs.\u003c\/p\u003e\u003ch2\u003eWhat is inside an AFM engine\u003c\/h2\u003e\u003cp\u003eAn AFM engine has a solenoid valve assembly in the engine valley cover. Its solenoids send pressurized oil to special hydraulic roller lifters (supplied by Eaton and Delphi) on the deactivating cylinders, which then stop opening the valves. Because the system runs on oil pressure, oil quality matters: worn-out anti-foam additives, the wrong viscosity or overdue changes can delay the oil signal and upset the switching. The module stops the switching; the oil system still needs proper care.\u003c\/p\u003e\u003ch2\u003eTroubleshooting\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCheck-engine light after fitting:\u003c\/strong\u003e Unplug the module, read the code and contact support with the code and the VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine still feels like it is switching modes:\u003c\/strong\u003e Confirm the module is fully seated in the port and that the engine code is an AFM engine listed for this vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eScan tool will not connect:\u003c\/strong\u003e The module occupies the port; remove it while the tool is in use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTicking or misfire continues:\u003c\/strong\u003e That is a mechanical or ignition fault. The module prevents switching; it does not repair hardware.\u003c\/p\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eWhich GMC Yukon Denali years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Yukon Denali 2007–2017 with 6.0L V8, 6.2L V8. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Yukon Denali?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Yukon Denali has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch2\u003eShipping, returns and warranty\u003c\/h2\u003e\u003cp\u003eWe ship free within the contiguous United States (1–2 business days to dispatch, roughly 3–4 business days in transit). If it turns out to be the wrong part, request a return authorization within 45 days; returns carry a 20% restocking fee and return postage is on the buyer. Coverage is a 3-year limited warranty. Questions go to support@automotivebypass.com, weekdays 9 a.m. to 5 p.m. PST.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493784498548,"sku":"RC-AFM-DFM-01-20","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-20-1.jpg?v=1793172323"},{"product_id":"afm-dfm-vcm-disabler-gmc-denali-xl-2007-2017-afm-dfm-disabler","title":"GMC Denali XL 2007-2017 6.0L\/6.2L V8 AFM\/DFM Disabler","description":"\u003cp\u003eThis AFM\/DFM disabler plugs into the OBD-II port of the 2007–2017 GMC Denali XL. Its job is to keep the engine running on all cylinders instead of dropping into the reduced-cylinder mode that GM's Active Fuel Management uses at light load. It does not rewrite engine software, and removal takes seconds: unplug the module and the vehicle is back to stock behavior.\u003c\/p\u003e\u003ch2\u003eFitment by year and engine\u003c\/h2\u003e\u003cp\u003eEach row below is listed as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2007–2009 GMC Denali XL: 6.0L V8 \/ 6.2L V8\u003c\/li\u003e\n\u003cli\u003e2010–2017 GMC Denali XL: 6.2L V8\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAFM-equipped engine codes that GM used in these years and sizes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eL76 (6.0L, 2007–2009, VIN 8th digit \"Y\")\u003c\/li\u003e\n\u003cli\u003eLFA (6.0L, 2008–2009, VIN 8th digit \"5\")\u003c\/li\u003e\n\u003cli\u003eL94 (6.2L, 2010–2014, VIN 8th digit \"F\")\u003c\/li\u003e\n\u003cli\u003eL86 (6.2L, 2014–2018, VIN 8th digit \"J\")\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn the same trucks and SUVs, GM also built V8s without AFM, for example the 5.3L LH9 (2010–2012 trucks, VIN code P), the 6.0L LY6 and L96 and the 6.2L L9H. Those engines never deactivate cylinders, so the module has nothing to manage on them. If your RPO list shows one of those codes, contact us before ordering.\u003c\/p\u003e\u003cp\u003eAn engine code that is not listed here does not automatically rule the vehicle out, but send us the VIN first so we can check.\u003c\/p\u003e\u003ch2\u003eThe factory system in brief\u003c\/h2\u003e\u003cp\u003eWhen cruising at steady speed, an AFM V8 drops to four cylinders. Cylinders 1, 7, 6 and 4 have two-stage lifters that the engine computer can switch with oil pressure; once switched, those valves stay shut and the injectors stop firing. The switch back to eight cylinders happens whenever more torque is needed.\u003c\/p\u003e\u003cp\u003eFor the 2019 redesign of the Silverado 1500 and Sierra 1500, GM introduced Dynamic Fuel Management on the 5.3L L84 and 6.2L L87, which can run on 17 different cylinder patterns. That is a different system from the AFM covered by this listing.\u003c\/p\u003e\u003ch2\u003eReasons to keep all cylinders running\u003c\/h2\u003e\u003cp\u003eThe usual complaints are a drone or shudder in reduced-cylinder mode, a slight hesitation when the engine switches back, and a general wish to keep the valvetrain doing the same thing all the time. With the module installed, the engine stays in full-cylinder mode, so those transitions stop. Expect light-load fuel economy to be closer to an engine without AFM.\u003c\/p\u003e\u003ch2\u003eOil and maintenance\u003c\/h2\u003e\u003cp\u003eDisabling cylinder deactivation does not replace normal maintenance. Use the oil grade and change interval GM lists for your engine, watch the oil level between changes, and repair leaks promptly. The valvetrain on these engines depends on clean oil at proper pressure in every mode.\u003c\/p\u003e\u003ch2\u003eUsing it day to day\u003c\/h2\u003e\u003cp\u003eThe module uses the OBD-II port, so it has to come out whenever a technician or an inspection station needs the port. Plugging it back in restores the all-cylinder mode. Route it so the driver cannot kick it loose.\u003c\/p\u003e\u003ch2\u003eModule, tune or delete kit\u003c\/h2\u003e\u003cp\u003eA mechanical AFM delete swaps the deactivating lifters (and often the camshaft and lifter oil manifold) for non-AFM parts and requires a tune afterwards. A tune alone can switch AFM off in software. This module works through the OBD-II port instead, so the engine hardware and its calibration stay stock. That makes it the easiest option to reverse, and the right one only when the engine is mechanically healthy.\u003c\/p\u003e\u003ch2\u003eCheck the engine first\u003c\/h2\u003e\u003cp\u003eScan for stored codes before you plug it in. Misfire codes on the deactivation cylinders, an AFM solenoid circuit code, or a lifter noise are signs of an existing problem that should be repaired first. The module is meant for a healthy engine where you simply do not want cylinder deactivation.\u003c\/p\u003e\u003ch2\u003eWhat to expect on the road\u003c\/h2\u003e\u003cp\u003eThe difference shows up in light-load driving: steady highway speeds, gentle acceleration and coasting down small grades. Those are the moments when AFM used to drop cylinders. With the module in, engine behavior there should feel the same as under heavier throttle. Full-throttle performance does not change, because AFM was never active at full throttle anyway.\u003c\/p\u003e\u003ch2\u003eConfirm your engine\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2007–2017 GMC Denali XL).\u003c\/li\u003e\n\u003cli\u003eThe quickest checks are the 8th digit of your VIN, which identifies the engine, and the RPO list on the Service Parts Identification label (glovebox or trunk on most pre-2018 GM models, QR code on the driver-door pillar label from 2018).\u003c\/li\u003e\n\u003cli\u003eThe engine runs cleanly with no stored misfire or AFM codes.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has an engine swap, an aftermarket tune or a replacement engine computer, contact support first.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eOne row per year. The last column shows which AFM-equipped GM engine codes match that year and engine size:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL76\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.0L V8 \/ 6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL76, LFA\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL94, L86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eDenali XL\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eEngine specifications\u003c\/h2\u003e\u003cp\u003eRatings and features for the engine codes that apply to this listing, as published for each engine (figures vary by vehicle and year):\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eL76\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e348–367 hp\u003c\/td\u003e\n\u003ctd\u003e376–385 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.40:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT on truck versions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLFA\u003c\/td\u003e\n\u003ctd\u003e6.0L\u003c\/td\u003e\n\u003ctd\u003e332 hp\u003c\/td\u003e\n\u003ctd\u003e367 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.80:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, hybrid\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL94\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e403 hp\u003c\/td\u003e\n\u003ctd\u003e417 lb-ft\u003c\/td\u003e\n\u003ctd\u003e10.40:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, E85-capable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eL86\u003c\/td\u003e\n\u003ctd\u003e6.2L\u003c\/td\u003e\n\u003ctd\u003e420 hp\u003c\/td\u003e\n\u003ctd\u003e460 lb-ft\u003c\/td\u003e\n\u003ctd\u003e11.50:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM, VVT, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eThe hardware behind AFM\u003c\/h2\u003e\u003cp\u003eInside the valley of an AFM V8 sits a solenoid assembly that feeds oil to two-stage hydraulic lifters on the cylinders that shut down. When a solenoid opens, the lifter collapses and the valve stays closed. The whole system depends on oil pressure, so oil grade, level and change intervals affect how it behaves. With the module installed, the switching no longer happens, but the lifters are still oil-fed and still need clean oil at the right pressure.\u003c\/p\u003e\u003ch2\u003ePreparation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRead codes first; repair existing misfire or lifter faults before relying on the module.\u003c\/li\u003e\n\u003cli\u003eTop up the oil to the full mark with the correct grade.\u003c\/li\u003e\n\u003cli\u003eIgnition off.\u003c\/li\u003e\n\u003cli\u003eFind the OBD-II port under the dash.\u003c\/li\u003e\n\u003cli\u003eSeat the module fully and keep it away from the pedals.\u003c\/li\u003e\n\u003cli\u003eStart the engine.\u003c\/li\u003e\n\u003cli\u003eTest at light cruise and check that the reduced-cylinder mode no longer appears.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrom Displacement on Demand to DFM\u003c\/h2\u003e\u003cp\u003eGM first sold cylinder deactivation in 1981 with the Cadillac V8-6-4. The modern system was announced in 2003 as Displacement on Demand and reached production on the 2005 Chevrolet TrailBlazer EXT and GMC Envoy XL and XUV with the 5.3L V8, followed by the 5.3L LS4 in the Impala SS, Monte Carlo SS and Pontiac Grand Prix GXP. Renamed Active Fuel Management, it spread across GM's Gen IV and EcoTec3 truck engines. For the 2019 Silverado, GM introduced Dynamic Fuel Management, based on Tula Technology's Dynamic Skip Fire, which can deactivate cylinders individually.\u003c\/p\u003e\u003ch2\u003eAfter-install checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eA light comes on:\u003c\/strong\u003e Pull the module, read the code, and send it with your VIN to support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStill dropping cylinders:\u003c\/strong\u003e Check the module is pushed fully into the port and that your engine is AFM-equipped.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNeed the port for diagnostics:\u003c\/strong\u003e Remove the module first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNoise or misfire persists:\u003c\/strong\u003e Have the engine inspected; the module only stops cylinder deactivation.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003ch2\u003eThe engines behind the codes\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eL76\u003c\/strong\u003e: aluminum-block 6.0L V8 with rectangular-port heads; the 2007–2009 truck version also has variable valve timing. VIN engine digit \"Y\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLFA\u003c\/strong\u003e: 6.0L V8 used in the Two-Mode Hybrid trucks and SUVs, with variable valve timing. VIN engine digit \"5\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL94\u003c\/strong\u003e: 6.2L V8 with variable valve timing and flex-fuel capability, used in Escalade and Yukon Denali models. VIN engine digit \"F\".\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eL86\u003c\/strong\u003e: 6.2L EcoTec3 V8 with direct injection and variable valve timing. VIN engine digit \"J\".\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe 6.2L V8 story: L92, L9H and L94\u003c\/h2\u003e\u003cp\u003eNot every GMT900 6.2L has cylinder deactivation. The L92 (2007–2008 Escalade, Yukon Denali and related models) had no working AFM, and the 2009 flex-fuel L9H had none either. AFM arrived on the 6.2L for 2010 as the L94 in the Escalade and Yukon Denali family. Published application lists show the 2007–2013 Sierra 1500 Denali with the L92\/L9H instead. The 2014-on EcoTec3 6.2L L86 brought AFM to the newer trucks and SUVs.\u003c\/p\u003e\u003ch2\u003eGeneration notes\u003c\/h2\u003e\u003cp\u003eTwo platform generations are involved here. GMT900 trucks and SUVs (from the 2007 model year) used Gen IV small-block V8s, while K2XX models (2014-on pickups, 2015-on SUVs) switched to EcoTec3 engines with direct injection. AFM appears in both, but not on every engine in either, so match the RPO code.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Denali XL?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Denali XL has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eWhich GMC Denali XL years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Denali XL 2007–2017 with 6.0L V8, 6.2L V8. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch2\u003eShipping and support\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493784531316,"sku":"RC-AFM-DFM-01-21","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-21-1.jpg?v=1793172330"},{"product_id":"afm-dfm-vcm-disabler-gmc-acadia-2007-2008-afm-dfm-disabler","title":"GMC Acadia 2007-2008 3.6L V6 AFM\/DFM Disabler","description":"\u003cp\u003eThis AFM\/DFM disabler plugs into the OBD-II port of the 2007–2008 GMC Acadia. Its job is to keep the engine running on all cylinders instead of dropping into the reduced-cylinder mode that GM's Active Fuel Management uses at light load. Installation is plugging it in. Nothing is spliced, flashed or removed from the engine, and the factory system resumes as soon as the module is unplugged.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eListed applications, each a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003e2007–2008 GMC Acadia: 3.6L V6\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eConfirm that your exact engine is the one in the table and that it uses cylinder deactivation. The RPO label and the VIN engine digit are the reliable ways to check, and support can confirm from a VIN.\u003c\/p\u003e\u003ch2\u003eThe factory system in brief\u003c\/h2\u003e\u003cp\u003eCylinder deactivation shuts off fuel and valve operation on part of the engine at light load, then brings those cylinders back when you need power. The engine computer decides when to switch based on load, speed and other inputs. This module works through the OBD-II port to keep the computer from choosing the reduced mode.\u003c\/p\u003e\u003ch2\u003ePractical notes\u003c\/h2\u003e\u003cp\u003eLeave it in the port for everyday driving. When the vehicle goes in for service or an emissions check, remove it so the shop has normal access to the diagnostic connector, then reinstall it.\u003c\/p\u003e\u003ch2\u003eAfter installation\u003c\/h2\u003e\u003cp\u003eExpect steadier behavior at part throttle and no change at wide-open throttle. Towing and hill climbing were already mostly done on all cylinders, so the biggest change is during relaxed cruising. Average fuel economy may drop slightly depending on how much of your driving is light-load highway time.\u003c\/p\u003e\u003ch2\u003eEngine care\u003c\/h2\u003e\u003cp\u003eOil level and quality are worth watching on any AFM engine, because the deactivation hardware is hydraulic. Check the dipstick at fuel stops on high-mileage engines, follow GM's specified oil grade, and address oil-pressure warnings immediately. None of that changes with the module installed.\u003c\/p\u003e\u003ch2\u003eBefore installing\u003c\/h2\u003e\u003cp\u003eScan for stored codes before you plug it in. Misfire codes on the deactivation cylinders, an AFM solenoid circuit code, or a lifter noise are signs of an existing problem that should be repaired first. The module is meant for a healthy engine where you simply do not want cylinder deactivation.\u003c\/p\u003e\u003ch2\u003eWhy people turn AFM off\u003c\/h2\u003e\u003cp\u003eOwners usually disable AFM for one of three reasons: they notice the change between modes as a vibration or exhaust drone, they want a consistent throttle response while towing or climbing grades, or they want to limit how often the deactivation lifters switch. Keeping the engine on all cylinders addresses all three. The tradeoff is that you give up whatever fuel saving AFM was providing in light cruising.\u003c\/p\u003e\u003ch2\u003ePlug-in module vs. a mechanical AFM delete\u003c\/h2\u003e\u003cp\u003eThere are three common ways to stop cylinder deactivation on GM engines: a plug-in module like this one, a custom tune that turns AFM off in the engine computer, or a mechanical delete that replaces the AFM lifters and related hardware and then needs a tune to match. The module is the only one of the three that needs no tools and no engine-computer changes, and it is the only one you can undo by unplugging it. It does not replace failed lifters; if hardware is already damaged, the repair comes first.\u003c\/p\u003e\u003ch2\u003eCheck before ordering\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2007–2008 GMC Acadia).\u003c\/li\u003e\n\u003cli\u003eFind your engine code. On GM vehicles before the 2018 model year, the Service Parts Identification label (usually inside the glovebox on these trucks and SUVs) lists the three-character RPO codes, and the engine code starts with L. From 2018, GM moved that data into a QR code on the certification label on the driver-side door pillar. The 8th character of the VIN also identifies the engine.\u003c\/li\u003e\n\u003cli\u003eThe engine runs cleanly with no stored misfire or AFM codes.\u003c\/li\u003e\n\u003cli\u003eEngine swaps, custom tunes and replaced ECUs need a fitment check from support before ordering.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table with engine codes\u003c\/h2\u003e\u003cp\u003eThe full fitment data, by year, alongside matching AFM engine codes:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eAcadia\u003c\/td\u003e\n\u003ctd\u003e3.6L V6\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eAcadia\u003c\/td\u003e\n\u003ctd\u003e3.6L V6\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhere AFM came from\u003c\/h2\u003e\u003cp\u003eGM first sold cylinder deactivation in 1981 with the Cadillac V8-6-4. The modern system was announced in 2003 as Displacement on Demand and reached production on the 2005 Chevrolet TrailBlazer EXT and GMC Envoy XL and XUV with the 5.3L V8, followed by the 5.3L LS4 in the Impala SS, Monte Carlo SS and Pontiac Grand Prix GXP. Renamed Active Fuel Management, it spread across GM's Gen IV and EcoTec3 truck engines. For the 2019 Silverado, GM introduced Dynamic Fuel Management, based on Tula Technology's Dynamic Skip Fire, which can deactivate cylinders individually.\u003c\/p\u003e\u003ch2\u003eGM 3.6L V6 engines and AFM\u003c\/h2\u003e\u003cp\u003eFor V6 applications, the engine code matters more than the displacement. AFM is part of the LGX (2016-on Camaro, which drops cylinders 2 and 5) and the LGZ (2017-on Colorado and Canyon). The LFX that preceded them, including in the 2015–2016 Colorado and Canyon, and the LFY in the 2018 Traverse and Enclave run on all six cylinders all the time and are not candidates for this module.\u003c\/p\u003e\u003ch2\u003eIf something seems wrong\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCheck-engine light after fitting:\u003c\/strong\u003e Unplug the module, read the code and contact support with the code and the VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine still feels like it is switching modes:\u003c\/strong\u003e Confirm the module is fully seated in the port and that the engine code is an AFM engine listed for this vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eScan tool will not connect:\u003c\/strong\u003e The module occupies the port; remove it while the tool is in use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTicking or misfire continues:\u003c\/strong\u003e That is a mechanical or ignition fault. The module prevents switching; it does not repair hardware.\u003c\/p\u003e\u003ch2\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003ch2\u003eInstall prep checklist\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eClear up any warning lights first: the module is for a healthy engine.\u003c\/li\u003e\n\u003cli\u003eConfirm oil level and grade.\u003c\/li\u003e\n\u003cli\u003eTurn everything off.\u003c\/li\u003e\n\u003cli\u003ePlug the module into the OBD-II port.\u003c\/li\u003e\n\u003cli\u003eCheck it is fully seated and cannot be kicked loose.\u003c\/li\u003e\n\u003cli\u003eStart the engine.\u003c\/li\u003e\n\u003cli\u003eCruise lightly on a level road to confirm all cylinders stay active.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe hardware behind AFM\u003c\/h2\u003e\u003cp\u003eAFM uses oil pressure as its control signal. A solenoid valve assembly under the intake manifold, in the valley cover, routes oil to collapsible lifters on the deactivating cylinders. Aerated or wrong-viscosity oil slows that signal. Keeping AFM off removes the switching, but every lifter still relies on the oiling system, so stick to the specified oil and intervals.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Acadia?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eWhich GMC Acadia years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Acadia 2007–2008 with 3.6L V6. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Acadia has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493784564084,"sku":"RC-AFM-DFM-01-22","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-22-1.jpg?v=1793172340"},{"product_id":"afm-dfm-vcm-disabler-gmc-canyon-2015-2018-afm-dfm-disabler","title":"GMC Canyon 2015-2018 3.6L V6 AFM\/DFM Disabler","description":"\u003cp\u003eThis AFM\/DFM disabler plugs into the OBD-II port of the 2015–2018 GMC Canyon. Its job is to keep the engine running on all cylinders instead of dropping into the reduced-cylinder mode that GM's Active Fuel Management uses at light load. Installation is plugging it in. Nothing is spliced, flashed or removed from the engine, and the factory system resumes as soon as the module is unplugged.\u003c\/p\u003e\u003ch2\u003eVehicles, years and engines\u003c\/h2\u003e\u003cp\u003eThe fitment table for this part (all rows marked 100% fitment match):\u003c\/p\u003e\u003cul\u003e\u003cli\u003e2015–2018 GMC Canyon: 3.6L V6\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eConfirm that your exact engine is the one in the table and that it uses cylinder deactivation. The RPO label and the VIN engine digit are the reliable ways to check, and support can confirm from a VIN.\u003c\/p\u003e\u003ch2\u003eHow GM cylinder deactivation works\u003c\/h2\u003e\u003cp\u003eGM's cylinder deactivation saves fuel by running the engine on fewer cylinders during light-load cruising. The switch is controlled by the engine computer. The module talks to the vehicle through the OBD-II port and keeps that reduced-cylinder mode from being selected, so all cylinders stay active.\u003c\/p\u003e\u003ch2\u003eWhy people turn AFM off\u003c\/h2\u003e\u003cp\u003eThe usual complaints are a drone or shudder in reduced-cylinder mode, a slight hesitation when the engine switches back, and a general wish to keep the valvetrain doing the same thing all the time. With the module installed, the engine stays in full-cylinder mode, so those transitions stop. Expect light-load fuel economy to be closer to an engine without AFM.\u003c\/p\u003e\u003ch2\u003eScan tools and inspections\u003c\/h2\u003e\u003cp\u003eBecause it occupies the OBD-II port, unplug the module before connecting a scan tool, an insurance logger or an emissions-test probe, then plug it back in afterwards. Make sure it sits clear of your left knee and the pedals, and that the housing is fully seated in the port.\u003c\/p\u003e\u003ch2\u003eDiagnose existing problems first\u003c\/h2\u003e\u003cp\u003eKeep the oil at the correct level and grade before and after installation. AFM lifters and their solenoids are oil-pressure operated, so an engine that is low on oil or running the wrong grade should be sorted out first. The module stops the switching, but it is not a substitute for maintenance or for repairing an engine that already has a fault.\u003c\/p\u003e\u003ch2\u003eWhat changes when you drive\u003c\/h2\u003e\u003cp\u003eExpect steadier behavior at part throttle and no change at wide-open throttle. Towing and hill climbing were already mostly done on all cylinders, so the biggest change is during relaxed cruising. Average fuel economy may drop slightly depending on how much of your driving is light-load highway time.\u003c\/p\u003e\u003ch2\u003ePlug-in module vs. a mechanical AFM delete\u003c\/h2\u003e\u003cp\u003eA mechanical AFM delete swaps the deactivating lifters (and often the camshaft and lifter oil manifold) for non-AFM parts and requires a tune afterwards. A tune alone can switch AFM off in software. This module works through the OBD-II port instead, so the engine hardware and its calibration stay stock. That makes it the easiest option to reverse, and the right one only when the engine is mechanically healthy.\u003c\/p\u003e\u003ch2\u003eMaintenance still matters\u003c\/h2\u003e\u003cp\u003eOil level and quality are worth watching on any AFM engine, because the deactivation hardware is hydraulic. Check the dipstick at fuel stops on high-mileage engines, follow GM's specified oil grade, and address oil-pressure warnings immediately. None of that changes with the module installed.\u003c\/p\u003e\u003ch2\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2015–2018 GMC Canyon).\u003c\/li\u003e\n\u003cli\u003eLook up the engine RPO code. Older GM vehicles print it on the Service Parts Identification sticker, often in the glovebox; 2018 and newer GM models carry it in a QR code on the driver-side B-pillar label. You can also read the 8th digit of the VIN, which is the engine code.\u003c\/li\u003e\n\u003cli\u003eNo check-engine light is on, and oil level and pressure are normal.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has an engine swap, an aftermarket tune or a replacement engine computer, contact support first.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table with engine codes\u003c\/h2\u003e\u003cp\u003eOne row per year. The last column shows which AFM-equipped GM engine codes match that year and engine size:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003e3.6L V6\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003e3.6L V6\u003c\/td\u003e\n\u003ctd\u003eConfirm by VIN\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2017\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003e3.6L V6\u003c\/td\u003e\n\u003ctd\u003eLGZ\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003e3.6L V6\u003c\/td\u003e\n\u003ctd\u003eLGZ\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eAfter-install checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCheck-engine light after fitting:\u003c\/strong\u003e Unplug the module, read the code and contact support with the code and the VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine still feels like it is switching modes:\u003c\/strong\u003e Confirm the module is fully seated in the port and that the engine code is an AFM engine listed for this vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eScan tool will not connect:\u003c\/strong\u003e The module occupies the port; remove it while the tool is in use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTicking or misfire continues:\u003c\/strong\u003e That is a mechanical or ignition fault. The module prevents switching; it does not repair hardware.\u003c\/p\u003e\u003ch2\u003eWhere AFM came from\u003c\/h2\u003e\u003cp\u003eGM first sold cylinder deactivation in 1981 with the Cadillac V8-6-4. The modern system was announced in 2003 as Displacement on Demand and reached production on the 2005 Chevrolet TrailBlazer EXT and GMC Envoy XL and XUV with the 5.3L V8, followed by the 5.3L LS4 in the Impala SS, Monte Carlo SS and Pontiac Grand Prix GXP. Renamed Active Fuel Management, it spread across GM's Gen IV and EcoTec3 truck engines. For the 2019 Silverado, GM introduced Dynamic Fuel Management, based on Tula Technology's Dynamic Skip Fire, which can deactivate cylinders individually.\u003c\/p\u003e\u003ch2\u003eThe hardware behind AFM\u003c\/h2\u003e\u003cp\u003eAn AFM engine has a solenoid valve assembly in the engine valley cover. Its solenoids send pressurized oil to special hydraulic roller lifters (supplied by Eaton and Delphi) on the deactivating cylinders, which then stop opening the valves. Because the system runs on oil pressure, oil quality matters: worn-out anti-foam additives, the wrong viscosity or overdue changes can delay the oil signal and upset the switching. The module stops the switching; the oil system still needs proper care.\u003c\/p\u003e\u003ch2\u003ePublished ratings for these engines\u003c\/h2\u003e\u003cp\u003ePublished output and key features of the relevant engines. Exact ratings depend on the vehicle and model year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eLGZ\u003c\/td\u003e\n\u003ctd\u003e3.6L\u003c\/td\u003e\n\u003ctd\u003e308 hp\u003c\/td\u003e\n\u003ctd\u003e275 lb-ft\u003c\/td\u003e\n\u003ctd\u003en\/a\u003c\/td\u003e\n\u003ctd\u003eV6, AFM, VVT, direct injection\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eInstall prep checklist\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eScan the engine for stored codes and note any misfire or AFM solenoid codes.\u003c\/li\u003e\n\u003cli\u003eCheck the oil level and confirm the grade matches GM's specification for your engine.\u003c\/li\u003e\n\u003cli\u003eSwitch the ignition off before inserting the module.\u003c\/li\u003e\n\u003cli\u003eLocate the OBD-II port under the driver-side dash.\u003c\/li\u003e\n\u003cli\u003ePush the module in until it is fully seated and sits clear of your knee and the pedals.\u003c\/li\u003e\n\u003cli\u003eStart the engine and let it idle before driving.\u003c\/li\u003e\n\u003cli\u003eTake a drive at steady light throttle, where AFM used to engage, and confirm the engine stays on all cylinders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eLGZ service notes\u003c\/h2\u003e\u003cp\u003eGM's service notes for the 2017-on LGZ describe a variable-displacement, dual-pressure oil pump located inside the oil pan and specify dexos1 5W-30. The engine drives through the 8L45 eight-speed automatic. AFM on this engine is hydraulically switched, so oil grade and level still matter after the module is installed.\u003c\/p\u003e\u003ch2\u003eThe V6 question\u003c\/h2\u003e\u003cp\u003eGM built several 3.6L V6 versions, and only some have AFM. The LGX (2016-on Camaro) and the LGZ (2017-on Colorado and Canyon) both use direct injection, variable valve timing and Active Fuel Management, running on four cylinders at light load (cylinders 2 and 5 are shut down on the LGX). The LFX, used in the 2015–2016 Colorado and Canyon, and the LFY in the 2018 Traverse and Enclave do not have AFM. Your RPO code settles it.\u003c\/p\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eWhich GMC Canyon years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Canyon 2015–2018 with 3.6L V6. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Canyon?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eHow do I tell which engine my GMC Canyon has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch2\u003eShipping and support\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493784858996,"sku":"RC-AFM-DFM-01-24","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-24-1.jpg?v=1793172415"},{"product_id":"afm-dfm-vcm-disabler-gmc-envoy-2005-2009-afm-dfm-disabler","title":"GMC Envoy 2005-2009 5.3L V8 AFM\/DFM Disabler","description":"\u003cp\u003eFits the 2005–2009 GMC Envoy. The module connects at the OBD-II port and keeps GM's cylinder deactivation from switching on, which means steady all-cylinder operation instead of repeated changes between full and partial mode. There is no tune involved and nothing inside the engine is changed. Pull it out of the port and the factory strategy returns.\u003c\/p\u003e\u003ch2\u003eWhat it fits\u003c\/h2\u003e\u003cp\u003eListed applications, each a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003e2005–2009 GMC Envoy: 5.3L V8\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eAFM-equipped engine codes that GM used in these years and sizes:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eLH6 (5.3L, 2005–2009, VIN 8th digit \"M\")\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eIf your engine code is not in this list, email the VIN to support before ordering so we can confirm the application.\u003c\/p\u003e\u003ch2\u003eHow Active Fuel Management operates\u003c\/h2\u003e\u003cp\u003eGM's Active Fuel Management turns a V8 into a V4 at light load by deactivating cylinders 1, 7, 6 and 4. Solenoids route oil pressure to the lifters on those cylinders, which collapse and stop opening the valves. Fuel to those cylinders is cut at the same time. Press the throttle harder and the system brings all eight back.\u003c\/p\u003e\u003ch2\u003eScan tools and inspections\u003c\/h2\u003e\u003cp\u003eLeave it in the port for everyday driving. When the vehicle goes in for service or an emissions check, remove it so the shop has normal access to the diagnostic connector, then reinstall it.\u003c\/p\u003e\u003ch2\u003eMaintenance still matters\u003c\/h2\u003e\u003cp\u003eDisabling cylinder deactivation does not replace normal maintenance. Use the oil grade and change interval GM lists for your engine, watch the oil level between changes, and repair leaks promptly. The valvetrain on these engines depends on clean oil at proper pressure in every mode.\u003c\/p\u003e\u003ch2\u003eWhy owners disable it\u003c\/h2\u003e\u003cp\u003eOwners usually disable AFM for one of three reasons: they notice the change between modes as a vibration or exhaust drone, they want a consistent throttle response while towing or climbing grades, or they want to limit how often the deactivation lifters switch. Keeping the engine on all cylinders addresses all three. The tradeoff is that you give up whatever fuel saving AFM was providing in light cruising.\u003c\/p\u003e\u003ch2\u003eWhat changes when you drive\u003c\/h2\u003e\u003cp\u003eExpect steadier behavior at part throttle and no change at wide-open throttle. Towing and hill climbing were already mostly done on all cylinders, so the biggest change is during relaxed cruising. Average fuel economy may drop slightly depending on how much of your driving is light-load highway time.\u003c\/p\u003e\u003ch2\u003eDiagnose existing problems first\u003c\/h2\u003e\u003cp\u003eThis module prevents mode switching. It does not repair anything. If the engine already has a ticking lifter, misfire codes, low oil pressure or high oil consumption, have it diagnosed before relying on the module. Those symptoms need a mechanical repair, and keeping AFM off will not reverse damage that has already happened.\u003c\/p\u003e\u003ch2\u003eOther ways owners disable AFM\u003c\/h2\u003e\u003cp\u003eOwners who want AFM gone for good sometimes go the mechanical route: non-AFM lifters, a matching camshaft and a retune. That is a large job and it is permanent. A tuner can also disable AFM in the engine computer. The plug-in module sits at the other end of the scale: no parts replaced, no software rewritten, and back to factory with one pull. It is meant for engines that run well and simply should not switch modes.\u003c\/p\u003e\u003ch2\u003eHow to confirm your engine code\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model year, model and engine match a row in the table (2005–2009 GMC Envoy).\u003c\/li\u003e\n\u003cli\u003eThe quickest checks are the 8th digit of your VIN, which identifies the engine, and the RPO list on the Service Parts Identification label (glovebox or trunk on most pre-2018 GM models, QR code on the driver-door pillar label from 2018).\u003c\/li\u003e\n\u003cli\u003eThe engine runs cleanly with no stored misfire or AFM codes.\u003c\/li\u003e\n\u003cli\u003eIf the vehicle has an engine swap, an aftermarket tune or a replacement engine computer, contact support first.\u003c\/li\u003e\n\u003cli\u003eQuestions: support@automotivebypass.com with your VIN.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eOne row per year. The last column shows which AFM-equipped GM engine codes match that year and engine size:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eAFM codes\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eEnvoy\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003eLH6\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2006\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eEnvoy\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003eLH6\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eEnvoy\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003eLH6\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eEnvoy\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003eLH6\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eEnvoy\u003c\/td\u003e\n\u003ctd\u003e5.3L V8\u003c\/td\u003e\n\u003ctd\u003eLH6\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eInstall prep checklist\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eScan the engine for stored codes and note any misfire or AFM solenoid codes.\u003c\/li\u003e\n\u003cli\u003eCheck the oil level and confirm the grade matches GM's specification for your engine.\u003c\/li\u003e\n\u003cli\u003eSwitch the ignition off before inserting the module.\u003c\/li\u003e\n\u003cli\u003eLocate the OBD-II port under the driver-side dash.\u003c\/li\u003e\n\u003cli\u003ePush the module in until it is fully seated and sits clear of your knee and the pedals.\u003c\/li\u003e\n\u003cli\u003eStart the engine and let it idle before driving.\u003c\/li\u003e\n\u003cli\u003eTake a drive at steady light throttle, where AFM used to engage, and confirm the engine stays on all cylinders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere AFM came from\u003c\/h2\u003e\u003cp\u003eGM first sold cylinder deactivation in 1981 with the Cadillac V8-6-4. The modern system was announced in 2003 as Displacement on Demand and reached production on the 2005 Chevrolet TrailBlazer EXT and GMC Envoy XL and XUV with the 5.3L V8, followed by the 5.3L LS4 in the Impala SS, Monte Carlo SS and Pontiac Grand Prix GXP. Renamed Active Fuel Management, it spread across GM's Gen IV and EcoTec3 truck engines. For the 2019 Silverado, GM introduced Dynamic Fuel Management, based on Tula Technology's Dynamic Skip Fire, which can deactivate cylinders individually.\u003c\/p\u003e\u003ch2\u003ePublished ratings for these engines\u003c\/h2\u003e\u003cp\u003ePublished output and key features of the relevant engines. Exact ratings depend on the vehicle and model year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eRPO code\u003c\/th\u003e\n\u003cth\u003eSize\u003c\/th\u003e\n\u003cth\u003ePower\u003c\/th\u003e\n\u003cth\u003eTorque\u003c\/th\u003e\n\u003cth\u003eCompression\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003eLH6\u003c\/td\u003e\n\u003ctd\u003e5.3L\u003c\/td\u003e\n\u003ctd\u003e300–315 hp\u003c\/td\u003e\n\u003ctd\u003e330–338 lb-ft\u003c\/td\u003e\n\u003ctd\u003e9.95:1\u003c\/td\u003e\n\u003ctd\u003ealuminum block, AFM\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eLH6 background\u003c\/h2\u003e\u003cp\u003eThe LH6 replaced the Gen III LM4 for the 2005 model year and was the first Gen IV truck V8 built. Other users of the same engine include the Buick Rainier, Saab 9-7X, Isuzu Ascender and some 2007–2009 Silverado 1500 and Sierra 1500 trucks.\u003c\/p\u003e\u003ch2\u003eIf something seems wrong\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eCheck-engine light after fitting:\u003c\/strong\u003e Unplug the module, read the code and contact support with the code and the VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine still feels like it is switching modes:\u003c\/strong\u003e Confirm the module is fully seated in the port and that the engine code is an AFM engine listed for this vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eScan tool will not connect:\u003c\/strong\u003e The module occupies the port; remove it while the tool is in use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTicking or misfire continues:\u003c\/strong\u003e That is a mechanical or ignition fault. The module prevents switching; it does not repair hardware.\u003c\/p\u003e\u003ch2\u003eThe engines behind the codes\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eLH6\u003c\/strong\u003e: aluminum-block 5.3L V8 used in midsize SUVs, one of the first GM engines with Displacement on Demand. VIN engine digit \"M\".\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRPO code:\u003c\/strong\u003e GM's three-character option code; engine codes begin with L.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOBD-II port:\u003c\/strong\u003e The standard diagnostic connector under the dash on every US vehicle since 1996.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVIN 8th digit:\u003c\/strong\u003e The VIN character that identifies the engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDFM:\u003c\/strong\u003e Dynamic Fuel Management, the system on 2019-on L84 and L87 engines that can deactivate cylinders individually.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoD:\u003c\/strong\u003e Displacement on Demand, the original name for AFM.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSPID label:\u003c\/strong\u003e Service Parts Identification label listing the RPO codes on pre-2018 GM vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAFM:\u003c\/strong\u003e Active Fuel Management, GM's cylinder deactivation system on the engines covered here.\u003c\/p\u003e\u003ch2\u003eModel background\u003c\/h2\u003e\u003cp\u003eThe 2005 Chevrolet TrailBlazer EXT and GMC Envoy XL and XUV were the first GM vehicles sold with Displacement on Demand, using the 5.3L V8. The 5.3L LH6 in these midsize SUVs carried cylinder deactivation through the 2009 model year, when the line ended.\u003c\/p\u003e\u003ch2\u003eWhat is inside an AFM engine\u003c\/h2\u003e\u003cp\u003eInside the valley of an AFM V8 sits a solenoid assembly that feeds oil to two-stage hydraulic lifters on the cylinders that shut down. When a solenoid opens, the lifter collapses and the valve stays closed. The whole system depends on oil pressure, so oil grade, level and change intervals affect how it behaves. With the module installed, the switching no longer happens, but the lifters are still oil-fed and still need clean oil at the right pressure.\u003c\/p\u003e\u003ch2\u003eQuestions owners ask\u003c\/h2\u003e\u003ch3\u003eHow do I tell which engine my GMC Envoy has?\u003c\/h3\u003e\u003cp\u003eCheck the 8th digit of the VIN or the RPO codes on the Service Parts Identification label (QR code on the door-pillar label on 2018 and newer GM models).\u003c\/p\u003e\u003ch3\u003eWill it fix lifter noise or misfires?\u003c\/h3\u003e\u003cp\u003eNo. Those are mechanical or electrical faults that need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eDoes it plug into the OBD-II port on the GMC Envoy?\u003c\/h3\u003e\u003cp\u003eYes. It plugs into the OBD-II port under the dash. There is no wiring or splicing.\u003c\/p\u003e\u003ch3\u003eWhich GMC Envoy years and engines does it fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Envoy 2005–2009 with 5.3L V8. Match your exact year and engine to a row before ordering.\u003c\/p\u003e\u003ch3\u003eDo I need to remove it for an emissions test or scan tool?\u003c\/h3\u003e\u003cp\u003eYes. It uses the diagnostic port, so unplug it while the port is needed and plug it back in afterwards.\u003c\/p\u003e\u003ch3\u003eHow much fuel does AFM save?\u003c\/h3\u003e\u003cp\u003eEPA-test estimates published for GM's system are about 5.5–7.5%, with the benefit coming from light-load cruising. Keeping all cylinders active gives up part of that, depending on how you drive.\u003c\/p\u003e\u003ch3\u003eDoes it work on 2019 and newer trucks with Dynamic Fuel Management?\u003c\/h3\u003e\u003cp\u003eOnly the vehicles and engines in this listing's fitment table are covered. DFM on the 2019-on Silverado 1500 and Sierra 1500 (5.3L L84, 6.2L L87) is a different system, so do not assume coverage outside the table.\u003c\/p\u003e\u003ch3\u003eIs a tune or ECU reflash required?\u003c\/h3\u003e\u003cp\u003eNo. The module plugs into the OBD-II port and does not rewrite the engine computer's software.\u003c\/p\u003e\u003ch3\u003eDoes it change anything when towing?\u003c\/h3\u003e\u003cp\u003eUnder heavy load, such as towing up a grade, AFM already keeps all cylinders running. The difference shows up during lighter cruising between climbs, where the engine no longer drops cylinders.\u003c\/p\u003e\u003ch3\u003eCan I go back to factory AFM?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and the factory cylinder-deactivation strategy works again.\u003c\/p\u003e\u003ch3\u003eWill it add horsepower?\u003c\/h3\u003e\u003cp\u003eNo. It keeps all cylinders active; it does not change the engine tune.\u003c\/p\u003e\u003ch3\u003eDo I need it if my engine already has an AFM delete?\u003c\/h3\u003e\u003cp\u003eNo. An engine with the AFM hardware removed and a matching tune no longer deactivates cylinders, so the module has nothing to manage.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493784924532,"sku":"RC-AFM-DFM-01-23","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/RC-AFM-DFM-01-23-1.jpg?v=1793172399"},{"product_id":"auto-start-stop-eliminator-2018-gmc-terrain-auto-start-stop-eliminator","title":"2018 GMC Terrain Auto Start Stop Eliminator","description":"\u003cp\u003eA inline memory harness for the 2018 GMC Terrain. Out of the factory, Auto Stop\/Start comes back on at every key cycle. This module remembers your last choice and sends it again at the next start. It plugs in line with the factory connector named in the instructions. Both ends are factory-style plugs, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eYou can still use the original button at any time. Whatever you select last is what the module repeats on the next start. Take the module out and the vehicle behaves exactly as it did from the factory.\u003c\/p\u003e\u003ch2\u003eCovered model years\u003c\/h2\u003e\u003cp\u003eThe fitment table for this SKU lists the following, each marked as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Terrain: 2018\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor reference, the GMC Terrain in these years is a compact crossover offered with 1.5L turbo four-cylinder engines, with a 2.0L turbo four-cylinder offered on earlier model years, most of the driving it sees is commuting, errands and light cargo duty. The listing is written around the second-generation (2018-2024) Terrain. The table does not separate trims; what matters is that the vehicle has factory stop-start and the connector shown in the photos.\u003c\/p\u003e\u003ch2\u003eHow factory stop-start works on the GMC Terrain\u003c\/h2\u003e\u003cp\u003eOn the GMC Terrain, Auto Stop\/Start shuts the engine down at a stop and fires it back up as the brake is released. You can switch it off with the dash button, but the choice is not saved. The next ignition cycle brings the default back. The module keeps the choice you made instead.\u003c\/p\u003e\u003ch2\u003eWhat the module does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFully reversible: unplug it and the vehicle returns to factory behavior.\u003c\/li\u003e\n\u003cli\u003eStores the stop-start choice you made last and repeats it at the next start.\u003c\/li\u003e\n\u003cli\u003eKeeps the original switch fully functional.\u003c\/li\u003e\n\u003cli\u003eNo tune, no reflash, no change to horsepower or shift points.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhen the engine will not auto-stop anyway\u003c\/h2\u003e\u003cp\u003eAuto stop needs several conditions at once: a warm engine, enough battery charge, moderate cabin heating or cooling demand, and the vehicle fully stopped with the brake held. If any is missing, the engine keeps running. The module only remembers the button state; the factory controller still decides whether a stop is allowed.\u003c\/p\u003e\u003ch2\u003eWhere it connects\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions. Both ends are factory-style plugs, so nothing is cut or spliced. The instructions show the connector for this application; compare it with the product photos before starting. Turn the vehicle off, make the connection, fix the module in place, and test with two or three key cycles.\u003c\/p\u003e\u003ch2\u003eBattery and charging\u003c\/h2\u003e\u003cp\u003eIf the stop-start indicator shows the system as unavailable, test the battery before anything else. On stop-start vehicles that is the most common cause. A replacement should match the original specification (AGM or EFB), and some manufacturers call for a battery monitor reset after the swap.\u003c\/p\u003e\u003ch2\u003eIf something does not look right\u003c\/h2\u003e\u003cp\u003eIf the setting is not remembered, check that the module was installed with the ignition off and that the connector clicked into place. Then press the factory button once, switch the vehicle off, close the doors, give the electronics time to shut down, and start again. If it still resets, contact support with the year, trim and a photo of the connector.\u003c\/p\u003e\u003ch2\u003eWhere owners notice the difference\u003c\/h2\u003e\u003cp\u003ePressing the same button on every drive is what wears on owners. People who tow, plow, idle in pickup lines, creep through heavy traffic or simply want the engine running at a light end up making the same press dozens of times a week. On the GMC Terrain, the module turns that into a one-time choice you can still change whenever you want.\u003c\/p\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2018 GMC Terrain).\u003c\/li\u003e\n\u003cli\u003eYour GMC Terrain has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year\u003c\/h2\u003e\u003cp\u003eOne row per model year, taken from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e2018\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003ePreparing for installation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSwitch everything off and take the key or fob out of range.\u003c\/li\u003e\n\u003cli\u003eGo through the model-specific instructions first.\u003c\/li\u003e\n\u003cli\u003eMatch the vehicle connector to the module before unplugging anything.\u003c\/li\u003e\n\u003cli\u003eRelease clips with a trim tool instead of pulling on wires.\u003c\/li\u003e\n\u003cli\u003eListen for the click on each latch.\u003c\/li\u003e\n\u003cli\u003eTie the module down so it stays quiet and away from moving parts.\u003c\/li\u003e\n\u003cli\u003eRun a restart test to confirm the memory works before refitting trim.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe reason the button has to be pressed every trip\u003c\/h2\u003e\u003cp\u003eThe factory behavior is tied to how fuel economy is rated in the US. A stop-start system that comes back on at each restart is rated with stop-start active. A system the driver can leave off would be tested both ways and averaged, which lowers the label figure. That is why Auto Stop\/Start on the GMC Terrain resets to on, and why a memory module is the way to keep your own preference.\u003c\/p\u003e\u003ch2\u003eHardware built for frequent restarts\u003c\/h2\u003e\u003cp\u003eTo cope with repeated restarts, stop-start vehicles normally carry an AGM or EFB battery and a heavier-duty starter, and the system watches battery charge closely. If the battery is weak, the vehicle will skip automatic stops on its own. The module leaves this hardware and its monitoring alone. Use the factory battery type when replacing it, and check the owner's manual for any battery reset step after replacement.\u003c\/p\u003e\u003ch2\u003eCommon questions after fitting\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eChoice is forgotten after restart:\u003c\/strong\u003e A plug is usually not fully home. Push each until it latches and test again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIndicator says the system is unavailable:\u003c\/strong\u003e The vehicle has decided conditions are not right for an automatic stop. This is normal factory behavior.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning appears:\u003c\/strong\u003e Remove the module, reconnect the original plug and confirm the warning clears, then contact support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine keeps shutting off at stops:\u003c\/strong\u003e Switch Auto Stop\/Start off once. The module stores the off state for the next start.\u003c\/p\u003e\u003ch2\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Terrain.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eWhich GMC Terrain years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2018. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Terrain?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Terrain sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions. Both ends are factory-style plugs, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Terrain?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Terrain need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch2\u003eWarranty and returns\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493785678196,"sku":"RC-ASSE-02-01","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2018_GMC_Terrain_Auto_Start-Stop_Eliminators_1.jpg?v=1793347188"},{"product_id":"tpms-sensor-eliminators-gmc-savana-1500-2008-2014-tpms-sensor-emulator","title":"GMC Savana 1500 2008-2014 TPMS Sensor Emulator","description":"\u003cp\u003eThe GMC Savana 1500 expects to hear from a sensor in each wheel. When the wheels on the vehicle have no sensors, the dash shows a TPMS fault. This emulator for the 2008–2014 GMC Savana 1500 provides those signals so the warning stays off. It does not measure air pressure. Once it is in use, checking pressures with a gauge is your job, not the dashboard's.\u003c\/p\u003e\u003ch2\u003eVehicles and years\u003c\/h2\u003e\u003cp\u003eEach row below is listed as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Savana 1500: 2008–2014\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eUse the model and year rows above as the deciding check. Different receivers or sensor configurations within the same nameplate are why fitment is listed this narrowly.\u003c\/p\u003e\u003ch2\u003eThe factory TPMS in brief\u003c\/h2\u003e\u003cp\u003eTPMS became mandatory on new US light vehicles (10,000 lb GVWR or less) on September 1, 2007, under FMVSS No. 138. The required system warns when a tire falls 25% below the recommended cold pressure, and separately flags a malfunction with a flashing-then-steady light. On the GMC Savana 1500, a missing sensor signal is treated as a malfunction, which is the warning this emulator is meant to address.\u003c\/p\u003e\u003ch2\u003eManual pressure checks\u003c\/h2\u003e\u003cp\u003eWithout TPMS warnings, a monthly routine does the job: tires cold, gauge on each valve, compare with the door-jamb placard, top up as needed, and look over the tread and sidewalls. Larger off-road or winter tires may call for different pressures than the factory placard; follow the tire maker's guidance in that case.\u003c\/p\u003e\u003ch2\u003eIf the warning stays on\u003c\/h2\u003e\u003cp\u003eIf the TPMS light remains on after setup, confirm the part matches your exact year and model, then follow the setup steps in the instructions again. A warning that persists can also point to a receiver or body-module fault, damaged wiring, or a different TPMS configuration than the one listed. The emulator cannot repair those, so a scan of the vehicle for stored codes is the next step.\u003c\/p\u003e\u003ch2\u003eWhere it fits in\u003c\/h2\u003e\u003cp\u003eMost buyers have wheels without sensors that they use part of the year, such as a winter set, a track set or a show set. The emulator keeps the dash clear while those wheels are on. When the original sensor-equipped wheels go back on, the factory system can be returned to normal operation following the instructions.\u003c\/p\u003e\u003ch2\u003eSafety and legal notes\u003c\/h2\u003e\u003cp\u003eTPMS is required safety equipment on new light vehicles in the US under FMVSS No. 138, and 49 U.S.C. 30122 prohibits manufacturers, dealers and repair businesses from knowingly making such equipment inoperative. Requirements for owners and for state inspections vary. Whatever the use, a tire gauge and regular visual checks replace the warning the system would have given you.\u003c\/p\u003e\u003ch2\u003eWhen the original wheels go back on\u003c\/h2\u003e\u003cp\u003eMost owners switch between two sets of wheels once or twice a year. Keep the instructions with the emulator so the swap is easy to repeat, and note which wheels were on which corner. If you have the original sensor wheels mounted again and the light stays on, run the vehicle's standard TPMS relearn procedure.\u003c\/p\u003e\u003ch2\u003eWhat it does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2014 GMC Savana 1500).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eOne row per model year, from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eSetup prep checklist\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStart from a fault-free TPMS on the sensor wheels.\u003c\/li\u003e\n\u003cli\u003eRead your model's instructions.\u003c\/li\u003e\n\u003cli\u003eSet pressures cold to the placard figure.\u003c\/li\u003e\n\u003cli\u003eStore the sensor wheels indoors.\u003c\/li\u003e\n\u003cli\u003eComplete the setup as described.\u003c\/li\u003e\n\u003cli\u003eRestart and look at the TPMS light.\u003c\/li\u003e\n\u003cli\u003ePlan regular gauge checks from now on.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBackground: the TPMS standard\u003c\/h2\u003e\u003cp\u003eFMVSS No. 138 came out of the TREAD Act of 2000. Phase-in started in October 2005, and all new US light vehicles up to 10,000 lb GVWR built from September 1, 2007 must have TPMS. The rule sets a low-pressure warning at 25% below the placard pressure, within 20 minutes of driving, and a separate malfunction signal: about a minute of flashing at start-up followed by a steady light. A missing sensor signal counts as a malfunction.\u003c\/p\u003e\u003ch2\u003eGM sensor matching after a wheel swap\u003c\/h2\u003e\u003cp\u003eWhen the original sensor wheels go back on, GM owner's manuals describe a sensor matching process. With the parking brake set and the ignition on (engine off), hold the key fob LOCK and UNLOCK buttons together for about five seconds, or use the Driver Information Center menu; the horn sounds twice and TIRE LEARNING ACTIVE appears. Then activate each sensor with a TPMS relearn tool held against the sidewall near the valve stem, in order: driver front, passenger front, passenger rear, driver rear. A chirp confirms each one. You have two minutes for the first wheel and five minutes for all four. Finish by setting all tires to the placard pressure.\u003c\/p\u003e\u003ch2\u003eDirect and indirect TPMS\u003c\/h2\u003e\u003cp\u003eIndirect TPMS works out pressure from wheel speed through the ABS sensors. Direct TPMS, used on the GMC Savana 1500, has a sensor with its own battery inside each wheel and reports measured pressure by radio. The sensor battery is sealed in, so a sensor is replaced when its battery runs down. Remove the sensors and a direct system reports a malfunction.\u003c\/p\u003e\u003ch2\u003eAfter-setup checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eLight flashes then stays on:\u003c\/strong\u003e The system still sees a malfunction. Re-check the fitment row and repeat the setup steps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLight was already on with the original wheels:\u003c\/strong\u003e The fault is in the vehicle (receiver, module or wiring) and needs repair first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLight returns after a wheel swap:\u003c\/strong\u003e Follow the instructions for switching between wheel sets; the original sensors may need the vehicle's normal relearn.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDifferent behavior from the description:\u003c\/strong\u003e Your vehicle may have a different TPMS configuration; contact support with the VIN.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eWhich GMC Savana 1500 years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Savana 1500 2008–2014. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch2\u003eShipping, returns and warranty\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493789282676,"sku":"TPMS-MOD-01-02","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-02-1.jpg?v=1793092430"},{"product_id":"tpms-sensor-eliminators-gmc-savana-2500-2008-2016-tpms-sensor-emulator","title":"GMC Savana 2500 2008-2016 TPMS Sensor Emulator","description":"\u003cp\u003eThe GMC Savana 2500 expects to hear from a sensor in each wheel. When the wheels on the vehicle have no sensors, the dash shows a TPMS fault. This emulator for the 2008–2016 GMC Savana 2500 provides those signals so the warning stays off. Keep in mind that the module reports what the system expects to see, not what is actually in the tires. A good gauge becomes your tire-pressure monitor.\u003c\/p\u003e\u003ch2\u003eVehicles and years\u003c\/h2\u003e\u003cp\u003eListed applications (all 100% fitment match):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Savana 2500: 2008–2016\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eUse the model and year rows above as the deciding check. Different receivers or sensor configurations within the same nameplate are why fitment is listed this narrowly.\u003c\/p\u003e\u003ch2\u003eThe factory TPMS in brief\u003c\/h2\u003e\u003cp\u003eEvery wheel on the GMC Savana 2500 normally carries a pressure sensor with its own ID, and the vehicle only listens for the IDs it has learned. Mount wheels without sensors and those IDs stop transmitting, so the system reports a fault. Under FMVSS No. 138, that fault shows as a TPMS light that flashes for roughly a minute at start-up and then stays lit, repeating on every start until the system sees its sensors again.\u003c\/p\u003e\u003ch2\u003eSafety and legal notes\u003c\/h2\u003e\u003cp\u003eTPMS is required safety equipment on new light vehicles in the US under FMVSS No. 138, and 49 U.S.C. 30122 prohibits manufacturers, dealers and repair businesses from knowingly making such equipment inoperative. Requirements for owners and for state inspections vary. Whatever the use, a tire gauge and regular visual checks replace the warning the system would have given you.\u003c\/p\u003e\u003ch2\u003eTypical uses\u003c\/h2\u003e\u003cp\u003eMost buyers have wheels without sensors that they use part of the year, such as a winter set, a track set or a show set. The emulator keeps the dash clear while those wheels are on. When the original sensor-equipped wheels go back on, the factory system can be returned to normal operation following the instructions.\u003c\/p\u003e\u003ch2\u003eChecking pressure the right way\u003c\/h2\u003e\u003cp\u003eUse the cold inflation pressure printed on the tire placard on the driver-side door jamb, not the maximum figure molded into the tire sidewall. \"Cold\" means the vehicle has been parked for about three hours or driven only a short distance. Check every tire including the spare, add air in small steps, and recheck. Doing this monthly covers most of what the TPMS warning would have told you.\u003c\/p\u003e\u003ch2\u003eTroubleshooting\u003c\/h2\u003e\u003cp\u003eIf the TPMS light remains on after setup, confirm the part matches your exact year and model, then follow the setup steps in the instructions again. A warning that persists can also point to a receiver or body-module fault, damaged wiring, or a different TPMS configuration than the one listed. The emulator cannot repair those, so a scan of the vehicle for stored codes is the next step.\u003c\/p\u003e\u003ch2\u003eSwitching between wheel sets\u003c\/h2\u003e\u003cp\u003eWhen you go back to the original sensor-equipped wheels, remove or disconnect the emulator as the instructions describe and let the vehicle recognize its sensors again. If the original sensors were rotated or replaced, the vehicle may need its normal TPMS relearn. Store the sensor wheels indoors and keep the valve caps on to keep moisture out of the valve stems.\u003c\/p\u003e\u003ch2\u003eScope\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2016 GMC Savana 2500).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table\u003c\/h2\u003e\u003cp\u003eOne row per model year, from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSavana 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTroubleshooting\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eLight flashes then stays on:\u003c\/strong\u003e The system still sees a malfunction. Re-check the fitment row and repeat the setup steps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLight was already on with the original wheels:\u003c\/strong\u003e The fault is in the vehicle (receiver, module or wiring) and needs repair first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eLight returns after a wheel swap:\u003c\/strong\u003e Follow the instructions for switching between wheel sets; the original sensors may need the vehicle's normal relearn.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDifferent behavior from the description:\u003c\/strong\u003e Your vehicle may have a different TPMS configuration; contact support with the VIN.\u003c\/p\u003e\u003ch2\u003eSetup prep checklist\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConfirm the TPMS works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eRead the included instructions for your model and year.\u003c\/li\u003e\n\u003cli\u003eCheck all tire pressures cold with a gauge against the door-jamb placard.\u003c\/li\u003e\n\u003cli\u003eKeep the original sensor wheels stored dry with valve caps fitted.\u003c\/li\u003e\n\u003cli\u003eFollow the setup steps in the instructions in order.\u003c\/li\u003e\n\u003cli\u003eStart the vehicle and confirm the TPMS light behavior after setup.\u003c\/li\u003e\n\u003cli\u003eNote the date and pressures so you can keep a monthly record.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBackground: the TPMS standard\u003c\/h2\u003e\u003cp\u003eAfter the TREAD Act of 2000, NHTSA issued FMVSS No. 138. It was phased in from October 2005 and applies to every new light vehicle (10,000 lb GVWR or less) built from September 1, 2007. The system must warn within 20 minutes of driving when a tire is 25% or more below the placard cold pressure, and it must also show a malfunction: the TPMS light flashes for about 60 to 90 seconds at start-up and then stays on. Wheels without sensors trigger that malfunction warning.\u003c\/p\u003e\u003ch2\u003eDirect and indirect TPMS\u003c\/h2\u003e\u003cp\u003eThe GMC Savana 2500 uses direct TPMS: sensors in the wheels, normally attached to the valve stems, each with a sealed battery and a unique ID. Indirect systems, used by some other makers, rely on ABS wheel-speed data instead. Direct systems are the ones that complain when sensors are missing, which is why an emulator is needed on sensorless wheels.\u003c\/p\u003e\u003ch2\u003eGM sensor matching after a wheel swap\u003c\/h2\u003e\u003cp\u003eGM's documented relearn is quick once you have a TPMS tool. Set the parking brake, switch the ignition on without starting the engine and put the receiver in learn mode (LOCK plus UNLOCK on the fob for roughly five seconds, or the tire-pressure item in the DIC menu) until the horn chirps twice. Trigger the sensors in the order driver front, passenger front, passenger rear, driver rear; each answers with a chirp, and the last with two. The process stops if the first wheel takes more than two minutes or all four take more than five.\u003c\/p\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003ch2\u003eQuestions owners ask\u003c\/h2\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eWhich GMC Savana 2500 years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Savana 2500 2008–2016. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493789839732,"sku":"TPMS-MOD-01-03","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-03-1.jpg?v=1793092439"},{"product_id":"tpms-sensor-eliminators-gmc-sierra-2008-2016-tpms-sensor-emulator","title":"GMC Sierra 2008-2016 TPMS Sensor Emulator","description":"\u003cp\u003eThis module is for the 2008–2016 GMC Sierra. It emulates the factory TPMS sensors, so a set of wheels without sensors does not trigger the low-tire or system-fault warning on the dash. Keep in mind that the module reports what the system expects to see, not what is actually in the tires. A good gauge becomes your tire-pressure monitor.\u003c\/p\u003e\u003ch2\u003eVehicles and years\u003c\/h2\u003e\u003cp\u003eListed applications (all 100% fitment match):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Sierra: 2008–2016\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eUse the model and year rows above as the deciding check. Different receivers or sensor configurations within the same nameplate are why fitment is listed this narrowly.\u003c\/p\u003e\u003ch2\u003eHow factory TPMS works on these vehicles\u003c\/h2\u003e\u003cp\u003eTPMS became mandatory on new US light vehicles (10,000 lb GVWR or less) on September 1, 2007, under FMVSS No. 138. The required system warns when a tire falls 25% below the recommended cold pressure, and separately flags a malfunction with a flashing-then-steady light. On the GMC Sierra, a missing sensor signal is treated as a malfunction, which is the warning this emulator is meant to address.\u003c\/p\u003e\u003ch2\u003eChecking pressure the right way\u003c\/h2\u003e\u003cp\u003eThe number that matters is on the door-jamb placard. Measure when the tires are cold (parked for a few hours), because a warm tire reads higher. A pencil gauge is fine; a good digital gauge is easier to read. Write down the readings for a few weeks and a slow leak becomes obvious long before it becomes a flat.\u003c\/p\u003e\u003ch2\u003eWhen the original wheels go back on\u003c\/h2\u003e\u003cp\u003eWhen you go back to the original sensor-equipped wheels, remove or disconnect the emulator as the instructions describe and let the vehicle recognize its sensors again. If the original sensors were rotated or replaced, the vehicle may need its normal TPMS relearn. Store the sensor wheels indoors and keep the valve caps on to keep moisture out of the valve stems.\u003c\/p\u003e\u003ch2\u003eResponsible use\u003c\/h2\u003e\u003cp\u003eA TPMS emulator removes your low-pressure warning, so manual checks have to take its place: cold pressure readings from the placard, a monthly check at minimum, and a look at tread and sidewalls. Inspection and road-use rules for TPMS vary by state, and federal law limits what shops may disable. Confirm the rules for your situation before use.\u003c\/p\u003e\u003ch2\u003eTroubleshooting\u003c\/h2\u003e\u003cp\u003eIf the TPMS light remains on after setup, confirm the part matches your exact year and model, then follow the setup steps in the instructions again. A warning that persists can also point to a receiver or body-module fault, damaged wiring, or a different TPMS configuration than the one listed. The emulator cannot repair those, so a scan of the vehicle for stored codes is the next step.\u003c\/p\u003e\u003ch2\u003eTypical uses\u003c\/h2\u003e\u003cp\u003eThe usual situation is a second wheel set: dedicated winter wheels, track wheels or off-road wheels that were never fitted with sensors. Buying and programming a second set of sensors costs money and time, and without them the TPMS light stays on all season. An emulator covers that set while the original wheels and sensors sit in storage.\u003c\/p\u003e\u003ch2\u003eWhat it does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2016 GMC Sierra).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table\u003c\/h2\u003e\u003cp\u003eOne row per model year, from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eGM sensor matching after a wheel swap\u003c\/h2\u003e\u003cp\u003eGM's documented relearn is quick once you have a TPMS tool. Set the parking brake, switch the ignition on without starting the engine and put the receiver in learn mode (LOCK plus UNLOCK on the fob for roughly five seconds, or the tire-pressure item in the DIC menu) until the horn chirps twice. Trigger the sensors in the order driver front, passenger front, passenger rear, driver rear; each answers with a chirp, and the last with two. The process stops if the first wheel takes more than two minutes or all four take more than five.\u003c\/p\u003e\u003ch2\u003eWhat FMVSS No. 138 requires\u003c\/h2\u003e\u003cp\u003eThe TPMS requirement is federal standard FMVSS No. 138, adopted under the TREAD Act of 2000 and fully in force for light vehicles built from September 1, 2007. It requires a warning when any tire is at least 25% under the recommended cold pressure, delivered within 20 minutes of driving, and a malfunction indication (flashing for roughly 60–90 seconds, then steady) when the system cannot do its job, including when sensors are absent.\u003c\/p\u003e\u003ch2\u003eIf the light stays on\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMalfunction light persists:\u003c\/strong\u003e Confirm year and model against the table and redo setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFault present before installation:\u003c\/strong\u003e Have the receiver, module and wiring diagnosed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning after refitting sensor wheels:\u003c\/strong\u003e Run the standard TPMS relearn for your vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUnexpected behavior:\u003c\/strong\u003e Send the VIN to support so the configuration can be checked.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003ch2\u003ePreparation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStart from a fault-free TPMS on the sensor wheels.\u003c\/li\u003e\n\u003cli\u003eRead your model's instructions.\u003c\/li\u003e\n\u003cli\u003eSet pressures cold to the placard figure.\u003c\/li\u003e\n\u003cli\u003eStore the sensor wheels indoors.\u003c\/li\u003e\n\u003cli\u003eComplete the setup as described.\u003c\/li\u003e\n\u003cli\u003eRestart and look at the TPMS light.\u003c\/li\u003e\n\u003cli\u003ePlan regular gauge checks from now on.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDirect and indirect TPMS\u003c\/h2\u003e\u003cp\u003eThe GMC Sierra uses direct TPMS: sensors in the wheels, normally attached to the valve stems, each with a sealed battery and a unique ID. Indirect systems, used by some other makers, rely on ABS wheel-speed data instead. Direct systems are the ones that complain when sensors are missing, which is why an emulator is needed on sensorless wheels.\u003c\/p\u003e\u003ch2\u003eQuestions owners ask\u003c\/h2\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eWhich GMC Sierra years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Sierra 2008–2016. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch2\u003eShipping and support\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493789872500,"sku":"TPMS-MOD-01-04","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-04-1.jpg?v=1793092452"},{"product_id":"tpms-sensor-eliminators-gmc-sierra-1500-2008-2016-tpms-sensor-emulator","title":"GMC Sierra 1500 2008-2016 TPMS Sensor Emulator","description":"\u003cp\u003eFor the 2008–2016 GMC Sierra 1500: an emulator that supplies the TPMS signals the vehicle is looking for. Typical use is a second set of wheels that has no sensors, where the factory system would otherwise keep its warning lit. Because it supplies an expected signal instead of real readings, it cannot warn you about a slow leak. Plan on manual pressure checks.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eListed applications (all 100% fitment match):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Sierra 1500: 2008–2016\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eUse the model and year rows above as the deciding check. Different receivers or sensor configurations within the same nameplate are why fitment is listed this narrowly.\u003c\/p\u003e\u003ch2\u003eHow factory TPMS works on these vehicles\u003c\/h2\u003e\u003cp\u003eThese vehicles use direct TPMS: a battery-powered sensor in each wheel sends pressure readings by radio, and a receiver in the vehicle matches each sensor by its ID. If a sensor goes quiet (dead battery, damaged sensor, or wheels without sensors), the system sets a fault. Federal standard FMVSS No. 138 requires this kind of warning on light vehicles built from September 1, 2007: a steady telltale when a tire is 25% or more below the placard pressure, and a malfunction indication that flashes for about a minute and then stays on when the system cannot work properly.\u003c\/p\u003e\u003ch2\u003eChecking pressure yourself\u003c\/h2\u003e\u003cp\u003eA TPMS emulator removes your low-pressure warning, so manual checks have to take its place: cold pressure readings from the placard, a monthly check at minimum, and a look at tread and sidewalls. Inspection and road-use rules for TPMS vary by state, and federal law limits what shops may disable. Confirm the rules for your situation before use.\u003c\/p\u003e\u003ch2\u003eSeasonal wheel swaps\u003c\/h2\u003e\u003cp\u003eMost owners switch between two sets of wheels once or twice a year. Keep the instructions with the emulator so the swap is easy to repeat, and note which wheels were on which corner. If you have the original sensor wheels mounted again and the light stays on, run the vehicle's standard TPMS relearn procedure.\u003c\/p\u003e\u003ch2\u003eTypical uses\u003c\/h2\u003e\u003cp\u003eIt is aimed at vehicles that spend time on wheels without sensors: off-road builds, track days, winter tires on steel wheels, or show vehicles. On each of those, a permanent TPMS light hides any other warning that might appear in the same spot, which is the main reason owners want it gone.\u003c\/p\u003e\u003ch2\u003eChecking pressure the right way\u003c\/h2\u003e\u003cp\u003eThe number that matters is on the door-jamb placard. Measure when the tires are cold (parked for a few hours), because a warm tire reads higher. A pencil gauge is fine; a good digital gauge is easier to read. Write down the readings for a few weeks and a slow leak becomes obvious long before it becomes a flat.\u003c\/p\u003e\u003ch2\u003eIf the warning stays on\u003c\/h2\u003e\u003cp\u003eA light that will not clear usually means a mismatch: a different year or receiver version than the listing, or a setup step that did not complete. Re-check the fitment rows and instructions. If they match, scan for codes, because a receiver or module fault will keep the light on regardless of what is installed.\u003c\/p\u003e\u003ch2\u003eScope\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eConfirm these points\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2016 GMC Sierra 1500).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eEach model year in the fitment data, listed separately:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat FMVSS No. 138 requires\u003c\/h2\u003e\u003cp\u003eFMVSS No. 138 came out of the TREAD Act of 2000. Phase-in started in October 2005, and all new US light vehicles up to 10,000 lb GVWR built from September 1, 2007 must have TPMS. The rule sets a low-pressure warning at 25% below the placard pressure, within 20 minutes of driving, and a separate malfunction signal: about a minute of flashing at start-up followed by a steady light. A missing sensor signal counts as a malfunction.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003ch2\u003eAfter-setup checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eStill lit after setup:\u003c\/strong\u003e Check fitment and repeat the steps in order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIt was lit before:\u003c\/strong\u003e Repair the existing TPMS fault first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBack on original wheels and lit:\u003c\/strong\u003e Use the vehicle's normal relearn procedure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot sure what is happening:\u003c\/strong\u003e Email support with your VIN.\u003c\/p\u003e\u003ch2\u003eGM sensor matching after a wheel swap\u003c\/h2\u003e\u003cp\u003eGM's documented relearn is quick once you have a TPMS tool. Set the parking brake, switch the ignition on without starting the engine and put the receiver in learn mode (LOCK plus UNLOCK on the fob for roughly five seconds, or the tire-pressure item in the DIC menu) until the horn chirps twice. Trigger the sensors in the order driver front, passenger front, passenger rear, driver rear; each answers with a chirp, and the last with two. The process stops if the first wheel takes more than two minutes or all four take more than five.\u003c\/p\u003e\u003ch2\u003eBefore you install\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStart from a fault-free TPMS on the sensor wheels.\u003c\/li\u003e\n\u003cli\u003eRead your model's instructions.\u003c\/li\u003e\n\u003cli\u003eSet pressures cold to the placard figure.\u003c\/li\u003e\n\u003cli\u003eStore the sensor wheels indoors.\u003c\/li\u003e\n\u003cli\u003eComplete the setup as described.\u003c\/li\u003e\n\u003cli\u003eRestart and look at the TPMS light.\u003c\/li\u003e\n\u003cli\u003ePlan regular gauge checks from now on.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTwo kinds of TPMS\u003c\/h2\u003e\u003cp\u003eIndirect TPMS works out pressure from wheel speed through the ABS sensors. Direct TPMS, used on the GMC Sierra 1500, has a sensor with its own battery inside each wheel and reports measured pressure by radio. The sensor battery is sealed in, so a sensor is replaced when its battery runs down. Remove the sensors and a direct system reports a malfunction.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch3\u003eWhich GMC Sierra 1500 years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Sierra 1500 2008–2016. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch2\u003eWarranty and returns\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493789905268,"sku":"TPMS-MOD-01-05","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-05-1.jpg?v=1793092460"},{"product_id":"tpms-sensor-eliminators-gmc-sierra-3500-hd-2008-2016-tpms-sensor-emulator","title":"GMC Sierra 3500 HD 2008-2016 TPMS Sensor Emulator","description":"\u003cp\u003eThis module is for the 2008–2016 GMC Sierra 3500 HD. It emulates the factory TPMS sensors, so a set of wheels without sensors does not trigger the low-tire or system-fault warning on the dash. Because it supplies an expected signal instead of real readings, it cannot warn you about a slow leak. Plan on manual pressure checks.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eEach row below is listed as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Sierra 3500 HD: 2008–2016\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eUse the model and year rows above as the deciding check. Different receivers or sensor configurations within the same nameplate are why fitment is listed this narrowly.\u003c\/p\u003e\u003ch2\u003eWhy the warning comes on\u003c\/h2\u003e\u003cp\u003eThese vehicles use direct TPMS: a battery-powered sensor in each wheel sends pressure readings by radio, and a receiver in the vehicle matches each sensor by its ID. If a sensor goes quiet (dead battery, damaged sensor, or wheels without sensors), the system sets a fault. Federal standard FMVSS No. 138 requires this kind of warning on light vehicles built from September 1, 2007: a steady telltale when a tire is 25% or more below the placard pressure, and a malfunction indication that flashes for about a minute and then stays on when the system cannot work properly.\u003c\/p\u003e\u003ch2\u003eChecking pressure yourself\u003c\/h2\u003e\u003cp\u003eTPMS is required safety equipment on new light vehicles in the US under FMVSS No. 138, and 49 U.S.C. 30122 prohibits manufacturers, dealers and repair businesses from knowingly making such equipment inoperative. Requirements for owners and for state inspections vary. Whatever the use, a tire gauge and regular visual checks replace the warning the system would have given you.\u003c\/p\u003e\u003ch2\u003eIf the warning stays on\u003c\/h2\u003e\u003cp\u003eA light that will not clear usually means a mismatch: a different year or receiver version than the listing, or a setup step that did not complete. Re-check the fitment rows and instructions. If they match, scan for codes, because a receiver or module fault will keep the light on regardless of what is installed.\u003c\/p\u003e\u003ch2\u003eWhen the original wheels go back on\u003c\/h2\u003e\u003cp\u003eWhen you go back to the original sensor-equipped wheels, remove or disconnect the emulator as the instructions describe and let the vehicle recognize its sensors again. If the original sensors were rotated or replaced, the vehicle may need its normal TPMS relearn. Store the sensor wheels indoors and keep the valve caps on to keep moisture out of the valve stems.\u003c\/p\u003e\u003ch2\u003eUsing the placard pressure\u003c\/h2\u003e\u003cp\u003eThe number that matters is on the door-jamb placard. Measure when the tires are cold (parked for a few hours), because a warm tire reads higher. A pencil gauge is fine; a good digital gauge is easier to read. Write down the readings for a few weeks and a slow leak becomes obvious long before it becomes a flat.\u003c\/p\u003e\u003ch2\u003eTypical uses\u003c\/h2\u003e\u003cp\u003eIt is aimed at vehicles that spend time on wheels without sensors: off-road builds, track days, winter tires on steel wheels, or show vehicles. On each of those, a permanent TPMS light hides any other warning that might appear in the same spot, which is the main reason owners want it gone.\u003c\/p\u003e\u003ch2\u003eScope\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2016 GMC Sierra 3500 HD).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table\u003c\/h2\u003e\u003cp\u003eOne row per model year, from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003ch2\u003eWhat FMVSS No. 138 requires\u003c\/h2\u003e\u003cp\u003eAfter the TREAD Act of 2000, NHTSA issued FMVSS No. 138. It was phased in from October 2005 and applies to every new light vehicle (10,000 lb GVWR or less) built from September 1, 2007. The system must warn within 20 minutes of driving when a tire is 25% or more below the placard cold pressure, and it must also show a malfunction: the TPMS light flashes for about 60 to 90 seconds at start-up and then stays on. Wheels without sensors trigger that malfunction warning.\u003c\/p\u003e\u003ch2\u003eWhen the sensor wheels go back on (GM)\u003c\/h2\u003e\u003cp\u003eWhen the original sensor wheels go back on, GM owner's manuals describe a sensor matching process. With the parking brake set and the ignition on (engine off), hold the key fob LOCK and UNLOCK buttons together for about five seconds, or use the Driver Information Center menu; the horn sounds twice and TIRE LEARNING ACTIVE appears. Then activate each sensor with a TPMS relearn tool held against the sidewall near the valve stem, in order: driver front, passenger front, passenger rear, driver rear. A chirp confirms each one. You have two minutes for the first wheel and five minutes for all four. Finish by setting all tires to the placard pressure.\u003c\/p\u003e\u003ch2\u003eTwo kinds of TPMS\u003c\/h2\u003e\u003cp\u003eThe GMC Sierra 3500 HD uses direct TPMS: sensors in the wheels, normally attached to the valve stems, each with a sealed battery and a unique ID. Indirect systems, used by some other makers, rely on ABS wheel-speed data instead. Direct systems are the ones that complain when sensors are missing, which is why an emulator is needed on sensorless wheels.\u003c\/p\u003e\u003ch2\u003eAfter-setup checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eStill lit after setup:\u003c\/strong\u003e Check fitment and repeat the steps in order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIt was lit before:\u003c\/strong\u003e Repair the existing TPMS fault first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBack on original wheels and lit:\u003c\/strong\u003e Use the vehicle's normal relearn procedure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot sure what is happening:\u003c\/strong\u003e Email support with your VIN.\u003c\/p\u003e\u003ch2\u003ePreparation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorking TPMS on the original wheels.\u003c\/li\u003e\n\u003cli\u003eInstructions for your exact vehicle at hand.\u003c\/li\u003e\n\u003cli\u003eTire gauge ready; pressures set cold to the placard.\u003c\/li\u003e\n\u003cli\u003eOriginal wheels stored safely, caps on.\u003c\/li\u003e\n\u003cli\u003eSetup completed step by step.\u003c\/li\u003e\n\u003cli\u003eDash checked after a restart.\u003c\/li\u003e\n\u003cli\u003eMonthly pressure check scheduled.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eWhich GMC Sierra 3500 HD years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Sierra 3500 HD 2008–2016. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493789938036,"sku":"TPMS-MOD-01-06","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-06-1.jpg?v=1793092469"},{"product_id":"tpms-sensor-eliminators-gmc-terrain-2010-2016-tpms-sensor-emulator","title":"GMC Terrain 2010-2016 TPMS Sensor Emulator","description":"\u003cp\u003eThe GMC Terrain expects to hear from a sensor in each wheel. When the wheels on the vehicle have no sensors, the dash shows a TPMS fault. This emulator for the 2010–2016 GMC Terrain provides those signals so the warning stays off. It does not measure air pressure. Once it is in use, checking pressures with a gauge is your job, not the dashboard's.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eListed applications (all 100% fitment match):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Terrain: 2010–2016\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eTPMS hardware can change within a model run (receiver version, sensor type), so match the exact model and year rather than the nameplate alone. Setup steps for your vehicle are in the included instructions.\u003c\/p\u003e\u003ch2\u003eHow factory TPMS works on these vehicles\u003c\/h2\u003e\u003cp\u003eThese vehicles use direct TPMS: a battery-powered sensor in each wheel sends pressure readings by radio, and a receiver in the vehicle matches each sensor by its ID. If a sensor goes quiet (dead battery, damaged sensor, or wheels without sensors), the system sets a fault. Federal standard FMVSS No. 138 requires this kind of warning on light vehicles built from September 1, 2007: a steady telltale when a tire is 25% or more below the placard pressure, and a malfunction indication that flashes for about a minute and then stays on when the system cannot work properly.\u003c\/p\u003e\u003ch2\u003eTypical uses\u003c\/h2\u003e\u003cp\u003eThe usual situation is a second wheel set: dedicated winter wheels, track wheels or off-road wheels that were never fitted with sensors. Buying and programming a second set of sensors costs money and time, and without them the TPMS light stays on all season. An emulator covers that set while the original wheels and sensors sit in storage.\u003c\/p\u003e\u003ch2\u003eDiagnosis first\u003c\/h2\u003e\u003cp\u003eA light that will not clear usually means a mismatch: a different year or receiver version than the listing, or a setup step that did not complete. Re-check the fitment rows and instructions. If they match, scan for codes, because a receiver or module fault will keep the light on regardless of what is installed.\u003c\/p\u003e\u003ch2\u003eSeasonal wheel swaps\u003c\/h2\u003e\u003cp\u003eWhen you go back to the original sensor-equipped wheels, remove or disconnect the emulator as the instructions describe and let the vehicle recognize its sensors again. If the original sensors were rotated or replaced, the vehicle may need its normal TPMS relearn. Store the sensor wheels indoors and keep the valve caps on to keep moisture out of the valve stems.\u003c\/p\u003e\u003ch2\u003eResponsible use\u003c\/h2\u003e\u003cp\u003eA TPMS emulator removes your low-pressure warning, so manual checks have to take its place: cold pressure readings from the placard, a monthly check at minimum, and a look at tread and sidewalls. Inspection and road-use rules for TPMS vary by state, and federal law limits what shops may disable. Confirm the rules for your situation before use.\u003c\/p\u003e\u003ch2\u003eUsing the placard pressure\u003c\/h2\u003e\u003cp\u003eUse the cold inflation pressure printed on the tire placard on the driver-side door jamb, not the maximum figure molded into the tire sidewall. \"Cold\" means the vehicle has been parked for about three hours or driven only a short distance. Check every tire including the spare, add air in small steps, and recheck. Doing this monthly covers most of what the TPMS warning would have told you.\u003c\/p\u003e\u003ch2\u003eScope\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2010–2016 GMC Terrain).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year\u003c\/h2\u003e\u003cp\u003eOne row per model year, from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhat FMVSS No. 138 requires\u003c\/h2\u003e\u003cp\u003eThe TPMS requirement is federal standard FMVSS No. 138, adopted under the TREAD Act of 2000 and fully in force for light vehicles built from September 1, 2007. It requires a warning when any tire is at least 25% under the recommended cold pressure, delivered within 20 minutes of driving, and a malfunction indication (flashing for roughly 60–90 seconds, then steady) when the system cannot do its job, including when sensors are absent.\u003c\/p\u003e\u003ch2\u003eDirect and indirect TPMS\u003c\/h2\u003e\u003cp\u003eThe GMC Terrain uses direct TPMS: sensors in the wheels, normally attached to the valve stems, each with a sealed battery and a unique ID. Indirect systems, used by some other makers, rely on ABS wheel-speed data instead. Direct systems are the ones that complain when sensors are missing, which is why an emulator is needed on sensorless wheels.\u003c\/p\u003e\u003ch2\u003eSetup prep checklist\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eStart from a fault-free TPMS on the sensor wheels.\u003c\/li\u003e\n\u003cli\u003eRead your model's instructions.\u003c\/li\u003e\n\u003cli\u003eSet pressures cold to the placard figure.\u003c\/li\u003e\n\u003cli\u003eStore the sensor wheels indoors.\u003c\/li\u003e\n\u003cli\u003eComplete the setup as described.\u003c\/li\u003e\n\u003cli\u003eRestart and look at the TPMS light.\u003c\/li\u003e\n\u003cli\u003ePlan regular gauge checks from now on.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003ch2\u003eAfter-setup checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eStill lit after setup:\u003c\/strong\u003e Check fitment and repeat the steps in order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIt was lit before:\u003c\/strong\u003e Repair the existing TPMS fault first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBack on original wheels and lit:\u003c\/strong\u003e Use the vehicle's normal relearn procedure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot sure what is happening:\u003c\/strong\u003e Email support with your VIN.\u003c\/p\u003e\u003ch2\u003eWhen the sensor wheels go back on (GM)\u003c\/h2\u003e\u003cp\u003eGM's documented relearn is quick once you have a TPMS tool. Set the parking brake, switch the ignition on without starting the engine and put the receiver in learn mode (LOCK plus UNLOCK on the fob for roughly five seconds, or the tire-pressure item in the DIC menu) until the horn chirps twice. Trigger the sensors in the order driver front, passenger front, passenger rear, driver rear; each answers with a chirp, and the last with two. The process stops if the first wheel takes more than two minutes or all four take more than five.\u003c\/p\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eWhich GMC Terrain years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Terrain 2010–2016. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch2\u003eWarranty and returns\u003c\/h2\u003e\u003cp\u003eWe ship free within the contiguous United States (1–2 business days to dispatch, roughly 3–4 business days in transit). If it turns out to be the wrong part, request a return authorization within 45 days; returns carry a 20% restocking fee and return postage is on the buyer. Coverage is a 3-year limited warranty. Questions go to support@automotivebypass.com, weekdays 9 a.m. to 5 p.m. PST.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493789970804,"sku":"TPMS-MOD-01-07","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-07-1.jpg?v=1793092477"},{"product_id":"tpms-sensor-eliminators-gmc-yukon-2008-2016-tpms-sensor-emulator","title":"GMC Yukon 2008-2016 TPMS Sensor Emulator","description":"\u003cp\u003eFor the 2008–2016 GMC Yukon: an emulator that supplies the TPMS signals the vehicle is looking for. Typical use is a second set of wheels that has no sensors, where the factory system would otherwise keep its warning lit. It does not measure air pressure. Once it is in use, checking pressures with a gauge is your job, not the dashboard's.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eListed applications (all 100% fitment match):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Yukon: 2008–2016\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eTPMS hardware can change within a model run (receiver version, sensor type), so match the exact model and year rather than the nameplate alone. Setup steps for your vehicle are in the included instructions.\u003c\/p\u003e\u003ch2\u003eThe factory TPMS in brief\u003c\/h2\u003e\u003cp\u003eTPMS became mandatory on new US light vehicles (10,000 lb GVWR or less) on September 1, 2007, under FMVSS No. 138. The required system warns when a tire falls 25% below the recommended cold pressure, and separately flags a malfunction with a flashing-then-steady light. On the GMC Yukon, a missing sensor signal is treated as a malfunction, which is the warning this emulator is meant to address.\u003c\/p\u003e\u003ch2\u003eWhen owners use an emulator\u003c\/h2\u003e\u003cp\u003eThe usual situation is a second wheel set: dedicated winter wheels, track wheels or off-road wheels that were never fitted with sensors. Buying and programming a second set of sensors costs money and time, and without them the TPMS light stays on all season. An emulator covers that set while the original wheels and sensors sit in storage.\u003c\/p\u003e\u003ch2\u003eSwitching between wheel sets\u003c\/h2\u003e\u003cp\u003eWhen you go back to the original sensor-equipped wheels, remove or disconnect the emulator as the instructions describe and let the vehicle recognize its sensors again. If the original sensors were rotated or replaced, the vehicle may need its normal TPMS relearn. Store the sensor wheels indoors and keep the valve caps on to keep moisture out of the valve stems.\u003c\/p\u003e\u003ch2\u003eResponsible use\u003c\/h2\u003e\u003cp\u003eTPMS is required safety equipment on new light vehicles in the US under FMVSS No. 138, and 49 U.S.C. 30122 prohibits manufacturers, dealers and repair businesses from knowingly making such equipment inoperative. Requirements for owners and for state inspections vary. Whatever the use, a tire gauge and regular visual checks replace the warning the system would have given you.\u003c\/p\u003e\u003ch2\u003eDiagnosis first\u003c\/h2\u003e\u003cp\u003eA light that will not clear usually means a mismatch: a different year or receiver version than the listing, or a setup step that did not complete. Re-check the fitment rows and instructions. If they match, scan for codes, because a receiver or module fault will keep the light on regardless of what is installed.\u003c\/p\u003e\u003ch2\u003eChecking pressure the right way\u003c\/h2\u003e\u003cp\u003eThe number that matters is on the door-jamb placard. Measure when the tires are cold (parked for a few hours), because a warm tire reads higher. A pencil gauge is fine; a good digital gauge is easier to read. Write down the readings for a few weeks and a slow leak becomes obvious long before it becomes a flat.\u003c\/p\u003e\u003ch2\u003eScope\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2016 GMC Yukon).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eEach model year in the fitment data, listed separately:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eHow these vehicles monitor pressure\u003c\/h2\u003e\u003cp\u003eThere are two ways to monitor tire pressure. Indirect systems use the ABS wheel-speed sensors and look for a tire turning faster because it is underinflated. Direct systems, like the one on the GMC Yukon, put a battery-powered sensor in each wheel, usually on the valve stem, and transmit actual pressure. Because a direct system expects to hear each sensor, wheels without sensors cause a fault, which is the situation the emulator addresses.\u003c\/p\u003e\u003ch2\u003eWhen the sensor wheels go back on (GM)\u003c\/h2\u003e\u003cp\u003eGM's documented relearn is quick once you have a TPMS tool. Set the parking brake, switch the ignition on without starting the engine and put the receiver in learn mode (LOCK plus UNLOCK on the fob for roughly five seconds, or the tire-pressure item in the DIC menu) until the horn chirps twice. Trigger the sensors in the order driver front, passenger front, passenger rear, driver rear; each answers with a chirp, and the last with two. The process stops if the first wheel takes more than two minutes or all four take more than five.\u003c\/p\u003e\u003ch2\u003eThe federal TPMS rule\u003c\/h2\u003e\u003cp\u003eAfter the TREAD Act of 2000, NHTSA issued FMVSS No. 138. It was phased in from October 2005 and applies to every new light vehicle (10,000 lb GVWR or less) built from September 1, 2007. The system must warn within 20 minutes of driving when a tire is 25% or more below the placard cold pressure, and it must also show a malfunction: the TPMS light flashes for about 60 to 90 seconds at start-up and then stays on. Wheels without sensors trigger that malfunction warning.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003ch2\u003eBefore you install\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorking TPMS on the original wheels.\u003c\/li\u003e\n\u003cli\u003eInstructions for your exact vehicle at hand.\u003c\/li\u003e\n\u003cli\u003eTire gauge ready; pressures set cold to the placard.\u003c\/li\u003e\n\u003cli\u003eOriginal wheels stored safely, caps on.\u003c\/li\u003e\n\u003cli\u003eSetup completed step by step.\u003c\/li\u003e\n\u003cli\u003eDash checked after a restart.\u003c\/li\u003e\n\u003cli\u003eMonthly pressure check scheduled.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eAfter-setup checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eStill lit after setup:\u003c\/strong\u003e Check fitment and repeat the steps in order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIt was lit before:\u003c\/strong\u003e Repair the existing TPMS fault first.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBack on original wheels and lit:\u003c\/strong\u003e Use the vehicle's normal relearn procedure.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNot sure what is happening:\u003c\/strong\u003e Email support with your VIN.\u003c\/p\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eWhich GMC Yukon years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Yukon 2008–2016. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493790069108,"sku":"TPMS-MOD-01-08","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-08-1.jpg?v=1793092488"},{"product_id":"tpms-sensor-eliminators-gmc-yukon-xl-1500-2008-2016-tpms-sensor-emulator","title":"GMC Yukon XL \/ Yukon XL 1500 2008-2016 TPMS Sensor Emulator","description":"\u003cp\u003eThis module is for the 2008–2014 GMC Yukon XL 1500 and 2015–2016 GMC Yukon XL. It emulates the factory TPMS sensors, so a set of wheels without sensors does not trigger the low-tire or system-fault warning on the dash. Because it supplies an expected signal instead of real readings, it cannot warn you about a slow leak. Plan on manual pressure checks.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eEach row below is listed as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGMC Yukon XL 1500: 2008–2014\u003c\/li\u003e\n\u003cli\u003eGMC Yukon XL: 2015–2016\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eTPMS hardware can change within a model run (receiver version, sensor type), so match the exact model and year rather than the nameplate alone. Setup steps for your vehicle are in the included instructions.\u003c\/p\u003e\u003ch2\u003eHow factory TPMS works on these vehicles\u003c\/h2\u003e\u003cp\u003eTPMS became mandatory on new US light vehicles (10,000 lb GVWR or less) on September 1, 2007, under FMVSS No. 138. The required system warns when a tire falls 25% below the recommended cold pressure, and separately flags a malfunction with a flashing-then-steady light. On the GMC Yukon XL 1500 and GMC Yukon XL, a missing sensor signal is treated as a malfunction, which is the warning this emulator is meant to address.\u003c\/p\u003e\u003ch2\u003eDiagnosis first\u003c\/h2\u003e\u003cp\u003eIf the TPMS light remains on after setup, confirm the part matches your exact year and model, then follow the setup steps in the instructions again. A warning that persists can also point to a receiver or body-module fault, damaged wiring, or a different TPMS configuration than the one listed. The emulator cannot repair those, so a scan of the vehicle for stored codes is the next step.\u003c\/p\u003e\u003ch2\u003eWhere it fits in\u003c\/h2\u003e\u003cp\u003eIt is aimed at vehicles that spend time on wheels without sensors: off-road builds, track days, winter tires on steel wheels, or show vehicles. On each of those, a permanent TPMS light hides any other warning that might appear in the same spot, which is the main reason owners want it gone.\u003c\/p\u003e\u003ch2\u003eSwitching between wheel sets\u003c\/h2\u003e\u003cp\u003eMost owners switch between two sets of wheels once or twice a year. Keep the instructions with the emulator so the swap is easy to repeat, and note which wheels were on which corner. If you have the original sensor wheels mounted again and the light stays on, run the vehicle's standard TPMS relearn procedure.\u003c\/p\u003e\u003ch2\u003eUsing the placard pressure\u003c\/h2\u003e\u003cp\u003eThe number that matters is on the door-jamb placard. Measure when the tires are cold (parked for a few hours), because a warm tire reads higher. A pencil gauge is fine; a good digital gauge is easier to read. Write down the readings for a few weeks and a slow leak becomes obvious long before it becomes a flat.\u003c\/p\u003e\u003ch2\u003eResponsible use\u003c\/h2\u003e\u003cp\u003eTPMS is required safety equipment on new light vehicles in the US under FMVSS No. 138, and 49 U.S.C. 30122 prohibits manufacturers, dealers and repair businesses from knowingly making such equipment inoperative. Requirements for owners and for state inspections vary. Whatever the use, a tire gauge and regular visual checks replace the warning the system would have given you.\u003c\/p\u003e\u003ch2\u003eScope\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2014 GMC Yukon XL 1500 and 2015–2016 GMC Yukon XL).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year\u003c\/h2\u003e\u003cp\u003eOne row per model year, from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 1500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003ch2\u003eTwo kinds of TPMS\u003c\/h2\u003e\u003cp\u003eThere are two ways to monitor tire pressure. Indirect systems use the ABS wheel-speed sensors and look for a tire turning faster because it is underinflated. Direct systems, like the one on the GMC Yukon XL 1500 and GMC Yukon XL, put a battery-powered sensor in each wheel, usually on the valve stem, and transmit actual pressure. Because a direct system expects to hear each sensor, wheels without sensors cause a fault, which is the situation the emulator addresses.\u003c\/p\u003e\u003ch2\u003eIf the light stays on\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMalfunction light persists:\u003c\/strong\u003e Confirm year and model against the table and redo setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFault present before installation:\u003c\/strong\u003e Have the receiver, module and wiring diagnosed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning after refitting sensor wheels:\u003c\/strong\u003e Run the standard TPMS relearn for your vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUnexpected behavior:\u003c\/strong\u003e Send the VIN to support so the configuration can be checked.\u003c\/p\u003e\u003ch2\u003eRe-learning the original sensors (GM)\u003c\/h2\u003e\u003cp\u003eWhen the original sensor wheels go back on, GM owner's manuals describe a sensor matching process. With the parking brake set and the ignition on (engine off), hold the key fob LOCK and UNLOCK buttons together for about five seconds, or use the Driver Information Center menu; the horn sounds twice and TIRE LEARNING ACTIVE appears. Then activate each sensor with a TPMS relearn tool held against the sidewall near the valve stem, in order: driver front, passenger front, passenger rear, driver rear. A chirp confirms each one. You have two minutes for the first wheel and five minutes for all four. Finish by setting all tires to the placard pressure.\u003c\/p\u003e\u003ch2\u003eThe federal TPMS rule\u003c\/h2\u003e\u003cp\u003eAfter the TREAD Act of 2000, NHTSA issued FMVSS No. 138. It was phased in from October 2005 and applies to every new light vehicle (10,000 lb GVWR or less) built from September 1, 2007. The system must warn within 20 minutes of driving when a tire is 25% or more below the placard cold pressure, and it must also show a malfunction: the TPMS light flashes for about 60 to 90 seconds at start-up and then stays on. Wheels without sensors trigger that malfunction warning.\u003c\/p\u003e\u003ch2\u003eSetup prep checklist\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eConfirm the TPMS works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eRead the included instructions for your model and year.\u003c\/li\u003e\n\u003cli\u003eCheck all tire pressures cold with a gauge against the door-jamb placard.\u003c\/li\u003e\n\u003cli\u003eKeep the original sensor wheels stored dry with valve caps fitted.\u003c\/li\u003e\n\u003cli\u003eFollow the setup steps in the instructions in order.\u003c\/li\u003e\n\u003cli\u003eStart the vehicle and confirm the TPMS light behavior after setup.\u003c\/li\u003e\n\u003cli\u003eNote the date and pressures so you can keep a monthly record.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWhich GMC Yukon XL 1500 and GMC Yukon XL years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Yukon XL 1500 2008–2014; GMC Yukon XL 2015–2016. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch2\u003eWarranty and returns\u003c\/h2\u003e\u003cp\u003eWe ship free within the contiguous United States (1–2 business days to dispatch, roughly 3–4 business days in transit). If it turns out to be the wrong part, request a return authorization within 45 days; returns carry a 20% restocking fee and return postage is on the buyer. Coverage is a 3-year limited warranty. Questions go to support@automotivebypass.com, weekdays 9 a.m. to 5 p.m. PST.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493790101876,"sku":"TPMS-MOD-01-09","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-09-1.jpg?v=1793092495"},{"product_id":"tpms-sensor-eliminators-gmc-yukon-xl-2500-2008-2013-tpms-sensor-emulator","title":"GMC Yukon XL 2500 2008-2013 TPMS Sensor Emulator","description":"\u003cp\u003eThe GMC Yukon XL 2500 expects to hear from a sensor in each wheel. When the wheels on the vehicle have no sensors, the dash shows a TPMS fault. This emulator for the 2008–2013 GMC Yukon XL 2500 provides those signals so the warning stays off. Keep in mind that the module reports what the system expects to see, not what is actually in the tires. A good gauge becomes your tire-pressure monitor.\u003c\/p\u003e\u003ch2\u003eCovered applications\u003c\/h2\u003e\u003cp\u003eListed applications (all 100% fitment match):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Yukon XL 2500: 2008–2013\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eTPMS hardware can change within a model run (receiver version, sensor type), so match the exact model and year rather than the nameplate alone. Setup steps for your vehicle are in the included instructions.\u003c\/p\u003e\u003ch2\u003eWhat the factory system is doing\u003c\/h2\u003e\u003cp\u003eTPMS became mandatory on new US light vehicles (10,000 lb GVWR or less) on September 1, 2007, under FMVSS No. 138. The required system warns when a tire falls 25% below the recommended cold pressure, and separately flags a malfunction with a flashing-then-steady light. On the GMC Yukon XL 2500, a missing sensor signal is treated as a malfunction, which is the warning this emulator is meant to address.\u003c\/p\u003e\u003ch2\u003eSafety and legal notes\u003c\/h2\u003e\u003cp\u003eA TPMS emulator removes your low-pressure warning, so manual checks have to take its place: cold pressure readings from the placard, a monthly check at minimum, and a look at tread and sidewalls. Inspection and road-use rules for TPMS vary by state, and federal law limits what shops may disable. Confirm the rules for your situation before use.\u003c\/p\u003e\u003ch2\u003eUsing the placard pressure\u003c\/h2\u003e\u003cp\u003eWithout TPMS warnings, a monthly routine does the job: tires cold, gauge on each valve, compare with the door-jamb placard, top up as needed, and look over the tread and sidewalls. Larger off-road or winter tires may call for different pressures than the factory placard; follow the tire maker's guidance in that case.\u003c\/p\u003e\u003ch2\u003eIf the warning stays on\u003c\/h2\u003e\u003cp\u003eA light that will not clear usually means a mismatch: a different year or receiver version than the listing, or a setup step that did not complete. Re-check the fitment rows and instructions. If they match, scan for codes, because a receiver or module fault will keep the light on regardless of what is installed.\u003c\/p\u003e\u003ch2\u003eSwitching between wheel sets\u003c\/h2\u003e\u003cp\u003eWhen you go back to the original sensor-equipped wheels, remove or disconnect the emulator as the instructions describe and let the vehicle recognize its sensors again. If the original sensors were rotated or replaced, the vehicle may need its normal TPMS relearn. Store the sensor wheels indoors and keep the valve caps on to keep moisture out of the valve stems.\u003c\/p\u003e\u003ch2\u003eWhere it fits in\u003c\/h2\u003e\u003cp\u003eIt is aimed at vehicles that spend time on wheels without sensors: off-road builds, track days, winter tires on steel wheels, or show vehicles. On each of those, a permanent TPMS light hides any other warning that might appear in the same spot, which is the main reason owners want it gone.\u003c\/p\u003e\u003ch2\u003eWhat it does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupplies the TPMS signals the listed vehicle expects so the warning stays off on wheels without sensors.\u003c\/li\u003e\n\u003cli\u003eDoes not read, store or display real tire pressures.\u003c\/li\u003e\n\u003cli\u003eDoes not repair a faulty receiver, body module or wiring.\u003c\/li\u003e\n\u003cli\u003eDoes not replace pressure checks with a gauge or tire inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eYour model and year match a row above (2008–2013 GMC Yukon XL 2500).\u003c\/li\u003e\n\u003cli\u003eThe TPMS system works normally on your original sensor-equipped wheels.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket TPMS receiver or display has been added.\u003c\/li\u003e\n\u003cli\u003eYou have a tire gauge and will check pressures manually.\u003c\/li\u003e\n\u003cli\u003eUnsure? Email your VIN to support@automotivebypass.com.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eOne row per model year, from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2009\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2010\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2011\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2012\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2013\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL 2500\u003c\/td\u003e\n\u003ctd\u003eAll\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eRe-learning the original sensors (GM)\u003c\/h2\u003e\u003cp\u003eWhen the original sensor wheels go back on, GM owner's manuals describe a sensor matching process. With the parking brake set and the ignition on (engine off), hold the key fob LOCK and UNLOCK buttons together for about five seconds, or use the Driver Information Center menu; the horn sounds twice and TIRE LEARNING ACTIVE appears. Then activate each sensor with a TPMS relearn tool held against the sidewall near the valve stem, in order: driver front, passenger front, passenger rear, driver rear. A chirp confirms each one. You have two minutes for the first wheel and five minutes for all four. Finish by setting all tires to the placard pressure.\u003c\/p\u003e\u003ch2\u003eAfter-setup checks\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMalfunction light persists:\u003c\/strong\u003e Confirm year and model against the table and redo setup.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFault present before installation:\u003c\/strong\u003e Have the receiver, module and wiring diagnosed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning after refitting sensor wheels:\u003c\/strong\u003e Run the standard TPMS relearn for your vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eUnexpected behavior:\u003c\/strong\u003e Send the VIN to support so the configuration can be checked.\u003c\/p\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eRelearn:\u003c\/strong\u003e The procedure that teaches the vehicle the IDs of its wheel sensors.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDirect TPMS:\u003c\/strong\u003e A system with a pressure sensor in each wheel.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlacard pressure:\u003c\/strong\u003e The recommended cold inflation pressure on the driver-side door-jamb label.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTPMS:\u003c\/strong\u003e Tire pressure monitoring system.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMalfunction indicator:\u003c\/strong\u003e The TPMS light flashing at start-up and then staying on, signalling a system fault.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFMVSS No. 138:\u003c\/strong\u003e The federal safety standard that requires TPMS on new US light vehicles.\u003c\/p\u003e\u003ch2\u003eBackground: the TPMS standard\u003c\/h2\u003e\u003cp\u003eFMVSS No. 138 came out of the TREAD Act of 2000. Phase-in started in October 2005, and all new US light vehicles up to 10,000 lb GVWR built from September 1, 2007 must have TPMS. The rule sets a low-pressure warning at 25% below the placard pressure, within 20 minutes of driving, and a separate malfunction signal: about a minute of flashing at start-up followed by a steady light. A missing sensor signal counts as a malfunction.\u003c\/p\u003e\u003ch2\u003eBefore you install\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWorking TPMS on the original wheels.\u003c\/li\u003e\n\u003cli\u003eInstructions for your exact vehicle at hand.\u003c\/li\u003e\n\u003cli\u003eTire gauge ready; pressures set cold to the placard.\u003c\/li\u003e\n\u003cli\u003eOriginal wheels stored safely, caps on.\u003c\/li\u003e\n\u003cli\u003eSetup completed step by step.\u003c\/li\u003e\n\u003cli\u003eDash checked after a restart.\u003c\/li\u003e\n\u003cli\u003eMonthly pressure check scheduled.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDirect and indirect TPMS\u003c\/h2\u003e\u003cp\u003eThere are two ways to monitor tire pressure. Indirect systems use the ABS wheel-speed sensors and look for a tire turning faster because it is underinflated. Direct systems, like the one on the GMC Yukon XL 2500, put a battery-powered sensor in each wheel, usually on the valve stem, and transmit actual pressure. Because a direct system expects to hear each sensor, wheels without sensors cause a fault, which is the situation the emulator addresses.\u003c\/p\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eWhy does my TPMS light flash and then stay on?\u003c\/h3\u003e\u003cp\u003eUnder FMVSS No. 138, a light that flashes for about a minute and then stays on indicates a system malfunction, such as missing sensor signals, rather than low pressure.\u003c\/p\u003e\u003ch3\u003eWhich GMC Yukon XL 2500 years does this TPMS emulator fit?\u003c\/h3\u003e\u003cp\u003eThe fitment table lists GMC Yukon XL 2500 2008–2013. Match your exact model and year before ordering.\u003c\/p\u003e\u003ch3\u003eDoes it measure tire pressure?\u003c\/h3\u003e\u003cp\u003eNo. It supplies the signals the system expects. Check pressures with a gauge.\u003c\/p\u003e\u003ch3\u003eIs it legal to use on the road?\u003c\/h3\u003e\u003cp\u003eTPMS is required equipment on new US light vehicles, and rules for owners and inspections vary by state. Check what applies before road use.\u003c\/p\u003e\u003ch3\u003eDo I still need to check tire pressure?\u003c\/h3\u003e\u003cp\u003eYes. Check all tires cold at least once a month with a gauge, using the pressures on the driver-side door-jamb placard.\u003c\/p\u003e\u003ch3\u003eCan I go back to the original sensors?\u003c\/h3\u003e\u003cp\u003eYes. Remove the emulator, refit the sensor-equipped wheels and follow the vehicle's normal TPMS procedure.\u003c\/p\u003e\u003ch3\u003eCan a tire shop work on the vehicle with the emulator installed?\u003c\/h3\u003e\u003cp\u003eTell the shop it is installed. Federal law restricts repair businesses from knowingly making TPMS inoperative, so some shops may ask you to remove it first.\u003c\/p\u003e\u003ch3\u003eWill it work on a vehicle that is not listed?\u003c\/h3\u003e\u003cp\u003eDo not assume it will. TPMS receivers and sensor setups vary by model and year, so match the fitment rows or send the VIN to support.\u003c\/p\u003e\u003ch3\u003eWill it fix a TPMS receiver or module fault?\u003c\/h3\u003e\u003cp\u003eNo. Receiver, wiring and module faults need their own diagnosis and repair.\u003c\/p\u003e\u003ch3\u003eWhy is TPMS required on US vehicles?\u003c\/h3\u003e\u003cp\u003eThe TREAD Act of 2000 directed NHTSA to require tire-pressure warnings, which led to FMVSS No. 138. All new US light vehicles built from September 1, 2007 must have it.\u003c\/p\u003e\u003ch2\u003eShipping and support\u003c\/h2\u003e\u003cp\u003eFree standard shipping covers the contiguous US, with dispatch in 1–2 business days and 3–4 days on the road after that. You have 45 days to request a return (pre-approval required, 20% restocking fee, buyer-paid return shipping). The module is backed by a 3-year limited warranty. For order or fitment questions, write to support@automotivebypass.com between 9 and 5 Pacific, Monday through Friday.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493790232948,"sku":"TPMS-MOD-01-10","price":119.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/TPMS-MOD-01-10-1.jpg?v=1793092506"},{"product_id":"auto-start-stop-eliminator-2021-2026-gmc-yukon-auto-stop-eliminator","title":"2021-2026 GMC Yukon Auto Start Stop Eliminator | Plug \u0026 Play","description":"\u003cp\u003eThis plug-and-play memory harness is for the 2021–2026 GMC Yukon. It stores the last stop-start setting you chose, so if you turned Auto Stop\/Start off on one drive, it stays off the next time you start the engine. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eNothing is reprogrammed in the engine computer. The module only stands in for the button press you would otherwise make after every start, and it comes out without leaving a trace.\u003c\/p\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eThis part is listed for these vehicles, all marked 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Yukon: 2021–2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe listing is written around the fifth-generation (2021-up) Yukon. Trim is not listed separately. Any trim in these years with factory stop-start and the pictured connector is covered.\u003c\/p\u003e\u003ch2\u003eHow factory stop-start works on the GMC Yukon\u003c\/h2\u003e\u003cp\u003eEach start of the GMC Yukon begins with Auto Stop\/Start enabled. The switch on the dash can disable it, but only until the key is cycled. This module records the switch position and repeats it after the restart, which is the entire job it does.\u003c\/p\u003e\u003ch2\u003eWhen the engine will not auto-stop anyway\u003c\/h2\u003e\u003cp\u003eThe factory system will skip an auto stop for many reasons: battery charge below its threshold, cold coolant, high climate-control load, a steep grade, the hood or driver door open, or a 4WD or tow mode on vehicles that have them. Those checks stay in control after this module is installed. It does not force stops and it does not bypass any of those safety inputs.\u003c\/p\u003e\u003ch2\u003eBattery notes for stop-start vehicles\u003c\/h2\u003e\u003cp\u003eMost stop-start systems watch battery condition closely through a sensor on the negative terminal. When the battery ages, the system quietly stops auto-stopping long before the battery fails to crank. Keeping the original battery type (AGM or EFB) and a clean, tight ground connection avoids a lot of confusion about why the system behaves differently from week to week.\u003c\/p\u003e\u003ch2\u003eInstalling the plug-and-play memory harness\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Disconnect nothing else and splice nothing. Once both plugs are locked, tuck the harness where it will not be pinched when the panel goes back on. Test by switching Auto Stop\/Start off, cycling the ignition and checking the indicator.\u003c\/p\u003e\u003ch2\u003eTypical reasons to keep it off\u003c\/h2\u003e\u003cp\u003eDrivers usually switch stop-start off for comfort or habit. A restart at every stop is noticeable in a full-size SUV, the climate system may run at reduced output while the engine is off, and quick moves into traffic feel slower when the engine has to fire first. If those are your reasons, you probably press the button on every drive now. With the module, you press it once.\u003c\/p\u003e\u003ch2\u003eWhat the module does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFully reversible: unplug it and the vehicle returns to factory behavior.\u003c\/li\u003e\n\u003cli\u003eKeeps the original switch fully functional.\u003c\/li\u003e\n\u003cli\u003eStores the stop-start choice you made last and repeats it at the next start.\u003c\/li\u003e\n\u003cli\u003eNo tune, no reflash, no change to horsepower or shift points.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTroubleshooting notes\u003c\/h2\u003e\u003cp\u003eA dead or weak battery, a charging problem or an unrelated module fault will change how Auto Stop\/Start behaves with or without this part installed. Scan the vehicle for stored codes, test the battery and confirm the system works normally with the factory button before installation. That baseline makes any later issue easy to pin down.\u003c\/p\u003e\u003ch2\u003eConfirm these points\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2021–2026 GMC Yukon).\u003c\/li\u003e\n\u003cli\u003eYour GMC Yukon has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table\u003c\/h2\u003e\u003cp\u003eThe full fitment data for this part, by year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Yukon.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003ch2\u003eWhy the factory default is always on\u003c\/h2\u003e\u003cp\u003eCar makers have a clear reason to make stop-start non-latching. For EPA ratings, a system that always re-enables itself is counted as on, while one that can stay off is tested on and off and the results averaged. The lower average is something no manufacturer wants on a window sticker, so the default returns at every key cycle.\u003c\/p\u003e\u003ch2\u003eTroubleshooting after installation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eChoice is forgotten after restart:\u003c\/strong\u003e A plug is usually not fully home. Push each until it latches and test again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIndicator says the system is unavailable:\u003c\/strong\u003e The vehicle has decided conditions are not right for an automatic stop. This is normal factory behavior.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning appears:\u003c\/strong\u003e Remove the module, reconnect the original plug and confirm the warning clears, then contact support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine keeps shutting off at stops:\u003c\/strong\u003e Switch Auto Stop\/Start off once. The module stores the off state for the next start.\u003c\/p\u003e\u003ch2\u003eHardware built for frequent restarts\u003c\/h2\u003e\u003cp\u003eStop-start puts extra load on the battery and starter, so manufacturers fit an AGM or enhanced flooded (EFB) battery and a starter rated for more cycles. Battery state is one of the inputs that decides whether the engine may stop. With the module installed the same rules apply, and the same battery type should be used when it is replaced.\u003c\/p\u003e\u003ch2\u003eBefore you plug it in\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIgnition off, transmission in Park, fob outside the cabin.\u003c\/li\u003e\n\u003cli\u003eInstructions for your exact model at hand.\u003c\/li\u003e\n\u003cli\u003eConnector location confirmed against the photos before any panel comes off.\u003c\/li\u003e\n\u003cli\u003eA plastic pry tool for clips, if the connector sits behind trim.\u003c\/li\u003e\n\u003cli\u003eBoth connector locks fully engaged after fitting.\u003c\/li\u003e\n\u003cli\u003eModule and lead fixed in place, clear of pedals, steering and heat.\u003c\/li\u003e\n\u003cli\u003eTest: choose your Auto Stop\/Start setting, turn the vehicle off, restart and check the indicator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Yukon?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eWhich GMC Yukon years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2021–2026. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Yukon?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Yukon need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Yukon sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch2\u003eShipping and support\u003c\/h2\u003e\u003cp\u003eWe ship free within the contiguous United States (1–2 business days to dispatch, roughly 3–4 business days in transit). If it turns out to be the wrong part, request a return authorization within 45 days; returns carry a 20% restocking fee and return postage is on the buyer. Coverage is a 3-year limited warranty. Questions go to support@automotivebypass.com, weekdays 9 a.m. to 5 p.m. PST.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493803471220,"sku":"RC-ASSE-17-03","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2021-2026_GMC_Yukon_Auto_Start-Stop_Eliminators_1.jpg?v=1793347640"},{"product_id":"auto-start-stop-eliminator-2021-2026-gmc-yukon-xl-auto-stop-eliminator","title":"2021-2026 GMC Yukon XL Auto Start Stop Eliminator | Plug \u0026 Play","description":"\u003cp\u003eIf your GMC Yukon XL turns Auto Stop\/Start back on every time you start it, this plug-and-play memory harness solves that one problem: it remembers the last setting and restores it at the next ignition cycle. Coverage is the 2021–2026 GMC Yukon XL. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eNothing is reprogrammed in the engine computer. The module only stands in for the button press you would otherwise make after every start, and it comes out without leaving a trace.\u003c\/p\u003e\u003ch2\u003eCovered model years\u003c\/h2\u003e\u003cp\u003eThis part is listed for these vehicles, all marked 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Yukon XL: 2021–2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe listing is written around the fifth-generation (2021-up) Yukon XL. Trim is not listed separately. Any trim in these years with factory stop-start and the pictured connector is covered.\u003c\/p\u003e\u003ch2\u003eWhy the button resets\u003c\/h2\u003e\u003cp\u003eThe factory logic arms Auto Stop\/Start every time the engine starts. Turning it off with the button only lasts until the engine is shut down. Owners who sit in stop-and-go traffic, tow, or idle in drive-throughs often prefer it off, and that is where the repeated button press comes from.\u003c\/p\u003e\u003ch2\u003eDiagnostics first\u003c\/h2\u003e\u003cp\u003eIf the setting is not remembered, check that the module was installed with the ignition off and that the connector clicked into place. Then press the factory button once, switch the vehicle off, close the doors, give the electronics time to shut down, and start again. If it still resets, contact support with the year, trim and a photo of the connector.\u003c\/p\u003e\u003ch2\u003eWhy owners turn it off\u003c\/h2\u003e\u003cp\u003ePressing the same button on every drive is what wears on owners. People who tow, plow, idle in pickup lines, creep through heavy traffic or simply want the engine running at a light end up making the same press dozens of times a week. On the GMC Yukon XL, the module turns that into a one-time choice you can still change whenever you want.\u003c\/p\u003e\u003ch2\u003eThings that already block an auto stop\u003c\/h2\u003e\u003cp\u003eThe factory system will skip an auto stop for many reasons: battery charge below its threshold, cold coolant, high climate-control load, a steep grade, the hood or driver door open, or a 4WD or tow mode on vehicles that have them. Those checks stay in control after this module is installed. It does not force stops and it does not bypass any of those safety inputs.\u003c\/p\u003e\u003ch2\u003eKeep the battery healthy\u003c\/h2\u003e\u003cp\u003eThe module draws its power from the vehicle and does not change charging behavior. If your GMC Yukon XL sits for long periods, the same rules apply as without it: a maintainer helps, and a battery that tests weak should be replaced with the type specified for stop-start vehicles (usually AGM or EFB).\u003c\/p\u003e\u003ch2\u003eWhat to expect\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDoes not disable warning lights or diagnostic functions.\u003c\/li\u003e\n\u003cli\u003eCarries your stop-start choice over to the next drive.\u003c\/li\u003e\n\u003cli\u003eComes out in the same way it went in, with nothing cut.\u003c\/li\u003e\n\u003cli\u003eFuel use changes only the way it would if you pressed the off button yourself.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstalling the plug-and-play memory harness\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Because it is plug-in only, removal is the reverse: unplug the module and reconnect the factory connectors directly. Keep the original clips and trim fasteners if you remove a panel to reach the connector.\u003c\/p\u003e\u003ch2\u003eQuick fitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2021–2026 GMC Yukon XL).\u003c\/li\u003e\n\u003cli\u003eYour GMC Yukon XL has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year\u003c\/h2\u003e\u003cp\u003eEach model year in the fitment data, listed separately:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eYukon XL\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eThe reason the button has to be pressed every trip\u003c\/h2\u003e\u003cp\u003eUS fuel-economy testing explains the reset. If a stop-start system is non-latching, meaning it switches back on whenever the vehicle is restarted, the EPA measures fuel economy with the system working. If the driver can switch it off permanently, the EPA tests with it both on and off and averages the two, which gives a lower number. Manufacturers therefore make the system come back on at every start, and drivers who prefer it off end up pressing the button each trip.\u003c\/p\u003e\u003ch2\u003ePreparing for installation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIgnition off, transmission in Park, fob outside the cabin.\u003c\/li\u003e\n\u003cli\u003eInstructions for your exact model at hand.\u003c\/li\u003e\n\u003cli\u003eConnector location confirmed against the photos before any panel comes off.\u003c\/li\u003e\n\u003cli\u003eA plastic pry tool for clips, if the connector sits behind trim.\u003c\/li\u003e\n\u003cli\u003eBoth connector locks fully engaged after fitting.\u003c\/li\u003e\n\u003cli\u003eModule and lead fixed in place, clear of pedals, steering and heat.\u003c\/li\u003e\n\u003cli\u003eTest: choose your Auto Stop\/Start setting, turn the vehicle off, restart and check the indicator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBattery and starter on stop-start vehicles\u003c\/h2\u003e\u003cp\u003eTo cope with repeated restarts, stop-start vehicles normally carry an AGM or EFB battery and a heavier-duty starter, and the system watches battery charge closely. If the battery is weak, the vehicle will skip automatic stops on its own. The module leaves this hardware and its monitoring alone. Use the factory battery type when replacing it, and check the owner's manual for any battery reset step after replacement.\u003c\/p\u003e\u003ch2\u003eTroubleshooting after installation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSetting not remembered:\u003c\/strong\u003e Check that both connectors are fully latched, then set Auto Stop\/Start the way you want it, switch the vehicle fully off and restart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStop-start indicator flashes or shows unavailable:\u003c\/strong\u003e The vehicle is reporting a condition such as low battery charge, high climate demand or a cold engine. That comes from the factory logic, not the module.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning message after fitting:\u003c\/strong\u003e Unplug the module, reconnect the factory connector and see whether the message clears. Contact support with the VIN and a photo of the connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine still stops at lights:\u003c\/strong\u003e That means Auto Stop\/Start was left on before shutdown. Press the button once to switch it off; the module remembers that choice from the next start.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Yukon XL.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eWhich GMC Yukon XL years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2021–2026. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Yukon XL?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Yukon XL?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Yukon XL need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Yukon XL sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch2\u003eShipping and support\u003c\/h2\u003e\u003cp\u003eWe ship free within the contiguous United States (1–2 business days to dispatch, roughly 3–4 business days in transit). If it turns out to be the wrong part, request a return authorization within 45 days; returns carry a 20% restocking fee and return postage is on the buyer. Coverage is a 3-year limited warranty. Questions go to support@automotivebypass.com, weekdays 9 a.m. to 5 p.m. PST.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493803536756,"sku":"RC-ASSE-17-04","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2021-2026_GMC_Yukon_XL_Auto_Start-Stop_Eliminators_1.jpg?v=1793347649"},{"product_id":"auto-start-stop-eliminator-2025-2026-gmc-terrain-auto-stop-eliminator","title":"2025-2026 GMC Terrain Auto Start Stop Eliminator | Plug \u0026 Play","description":"\u003cp\u003eFits the 2025–2026 GMC Terrain. The plug-and-play memory harness remembers the position of the stop-start button between drives, so the engine no longer shuts off at the first red light after every restart unless you want it to. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eYou can still use the original button at any time. Whatever you select last is what the module repeats on the next start. Take the module out and the vehicle behaves exactly as it did from the factory.\u003c\/p\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eEvery row below is listed as a 100% fitment match for this part:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Terrain: 2025–2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor reference, the GMC Terrain in these years is a compact crossover offered with 1.5L turbo four-cylinder engines, with a 2.0L turbo four-cylinder offered on earlier model years. The listing is written around the third-generation (2025-up) Terrain. The table does not separate trims; what matters is that the vehicle has factory stop-start and the connector shown in the photos.\u003c\/p\u003e\u003ch2\u003eHow factory stop-start works on the GMC Terrain\u003c\/h2\u003e\u003cp\u003eWith Auto Stop\/Start active, the engine shuts off when the vehicle comes to a stop and restarts when you lift off the brake or press the accelerator. The off button is a manual override for that drive only. Turn the ignition off and back on, and the system defaults to on again, so drivers who prefer it off end up pressing the button at the start of every trip.\u003c\/p\u003e\u003ch2\u003eIf something does not look right\u003c\/h2\u003e\u003cp\u003eA dead or weak battery, a charging problem or an unrelated module fault will change how Auto Stop\/Start behaves with or without this part installed. Scan the vehicle for stored codes, test the battery and confirm the system works normally with the factory button before installation. That baseline makes any later issue easy to pin down.\u003c\/p\u003e\u003ch2\u003eTypical reasons to keep it off\u003c\/h2\u003e\u003cp\u003ePressing the same button on every drive is what wears on owners. People who tow, plow, idle in pickup lines, creep through heavy traffic or simply want the engine running at a light end up making the same press dozens of times a week. On the GMC Terrain, the module turns that into a one-time choice you can still change whenever you want.\u003c\/p\u003e\u003ch2\u003eWhere it connects\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Disconnect nothing else and splice nothing. Once both plugs are locked, tuck the harness where it will not be pinched when the panel goes back on. Test by switching Auto Stop\/Start off, cycling the ignition and checking the indicator.\u003c\/p\u003e\u003ch2\u003eWhen the engine will not auto-stop anyway\u003c\/h2\u003e\u003cp\u003eEven with Auto Stop\/Start enabled, the engine control logic only stops the engine when conditions allow it. Typical blockers are a low battery state of charge, an engine that has not reached operating temperature, heavy heating or A\/C demand, steering input, an open door or unlatched seatbelt, and some drive modes. If the system never seems to stop the engine, one of these is usually the reason, and the module does not change that logic.\u003c\/p\u003e\u003ch2\u003eBattery notes for stop-start vehicles\u003c\/h2\u003e\u003cp\u003eMost stop-start systems watch battery condition closely through a sensor on the negative terminal. When the battery ages, the system quietly stops auto-stopping long before the battery fails to crank. Keeping the original battery type (AGM or EFB) and a clean, tight ground connection avoids a lot of confusion about why the system behaves differently from week to week.\u003c\/p\u003e\u003ch2\u003eWhat the module does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHolds the stop-start button state between drives.\u003c\/li\u003e\n\u003cli\u003eLeaves no permanent change after removal.\u003c\/li\u003e\n\u003cli\u003eLets you re-enable the system with the factory button at any time.\u003c\/li\u003e\n\u003cli\u003eLeaves engine and transmission software untouched.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2025–2026 GMC Terrain).\u003c\/li\u003e\n\u003cli\u003eYour GMC Terrain has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table\u003c\/h2\u003e\u003cp\u003eOne row per model year, taken from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eTerrain\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy stop-start resets at every start\u003c\/h2\u003e\u003cp\u003eCar makers have a clear reason to make stop-start non-latching. For EPA ratings, a system that always re-enables itself is counted as on, while one that can stay off is tested on and off and the results averaged. The lower average is something no manufacturer wants on a window sticker, so the default returns at every key cycle.\u003c\/p\u003e\u003ch2\u003eBefore you plug it in\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePark on level ground, shift to Park, switch the ignition off and keep the key or fob away from the vehicle.\u003c\/li\u003e\n\u003cli\u003eRead the included instructions for your model before removing any trim.\u003c\/li\u003e\n\u003cli\u003eLocate the connector named in the instructions and compare it with the plugs on the module.\u003c\/li\u003e\n\u003cli\u003eUse a plastic trim tool where a panel has to be eased out, to avoid marking the dash.\u003c\/li\u003e\n\u003cli\u003ePress each connector until the lock clicks; never force a plug that does not line up.\u003c\/li\u003e\n\u003cli\u003eSecure the module with the supplied tie or tape so it cannot rattle or touch moving parts.\u003c\/li\u003e\n\u003cli\u003eStart the vehicle, set Auto Stop\/Start the way you want it, switch off, restart and confirm the setting held.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon questions after fitting\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eChoice is forgotten after restart:\u003c\/strong\u003e A plug is usually not fully home. Push each until it latches and test again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIndicator says the system is unavailable:\u003c\/strong\u003e The vehicle has decided conditions are not right for an automatic stop. This is normal factory behavior.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning appears:\u003c\/strong\u003e Remove the module, reconnect the original plug and confirm the warning clears, then contact support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine keeps shutting off at stops:\u003c\/strong\u003e Switch Auto Stop\/Start off once. The module stores the off state for the next start.\u003c\/p\u003e\u003ch2\u003eGlossary\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Terrain.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003ch2\u003eWhat sits behind the system\u003c\/h2\u003e\u003cp\u003eStop-start puts extra load on the battery and starter, so manufacturers fit an AGM or enhanced flooded (EFB) battery and a starter rated for more cycles. Battery state is one of the inputs that decides whether the engine may stop. With the module installed the same rules apply, and the same battery type should be used when it is replaced.\u003c\/p\u003e\u003ch2\u003eQuestions owners ask\u003c\/h2\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eWhich GMC Terrain years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2025–2026. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Terrain?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Terrain?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Terrain need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Terrain sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch2\u003eWarranty and returns\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493803569524,"sku":"RC-ASSE-18-01","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2025-2026_GMC_Terrain_Auto_Start-Stop_Eliminators_1.jpg?v=1793347659"},{"product_id":"auto-start-stop-eliminator-2023-2026-gmc-canyon-auto-stop-eliminator","title":"2023-2026 GMC Canyon Auto Start Stop Eliminator | Plug \u0026 Play","description":"\u003cp\u003eFits the 2023–2026 GMC Canyon. The plug-and-play memory harness remembers the position of the stop-start button between drives, so the engine no longer shuts off at the first red light after every restart unless you want it to. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eThe factory button stays in place and still works. Press it and the module stores the new choice. Unplug the module and the vehicle goes back to stock behavior.\u003c\/p\u003e\u003ch2\u003eCovered model years\u003c\/h2\u003e\u003cp\u003eListed applications (each row is a 100% fitment match for the factory connector this part uses):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Canyon: 2023–2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eTrim is not listed separately. Any trim in these years with factory stop-start and the pictured connector is covered.\u003c\/p\u003e\u003ch2\u003eWhat the factory system does\u003c\/h2\u003e\u003cp\u003eOn the GMC Canyon, Auto Stop\/Start shuts the engine down at a stop and fires it back up as the brake is released. You can switch it off with the dash button, but the choice is not saved. The next ignition cycle brings the default back. The module keeps the choice you made instead.\u003c\/p\u003e\u003ch2\u003eBefore blaming the module\u003c\/h2\u003e\u003cp\u003eA dead or weak battery, a charging problem or an unrelated module fault will change how Auto Stop\/Start behaves with or without this part installed. Scan the vehicle for stored codes, test the battery and confirm the system works normally with the factory button before installation. That baseline makes any later issue easy to pin down.\u003c\/p\u003e\u003ch2\u003eA note on the battery\u003c\/h2\u003e\u003cp\u003eThe module draws its power from the vehicle and does not change charging behavior. If your GMC Canyon sits for long periods, the same rules apply as without it: a maintainer helps, and a battery that tests weak should be replaced with the type specified for stop-start vehicles (usually AGM or EFB).\u003c\/p\u003e\u003ch2\u003eWhere it connects\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Work with the ignition off. Seat each connector until its lock engages, then secure the module with the supplied ties or tape so it cannot rattle or touch pedals, steering parts or anything hot. Start the vehicle, press the stop-start button once, then restart to confirm the choice is held.\u003c\/p\u003e\u003ch2\u003eScope of the module\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eKeeps the original switch fully functional.\u003c\/li\u003e\n\u003cli\u003eStores the stop-start choice you made last and repeats it at the next start.\u003c\/li\u003e\n\u003cli\u003eNo tune, no reflash, no change to horsepower or shift points.\u003c\/li\u003e\n\u003cli\u003eFully reversible: unplug it and the vehicle returns to factory behavior.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDay-to-day use\u003c\/h2\u003e\u003cp\u003eSome owners only want stop-start off in certain seasons or on certain trips, such as towing a trailer or crawling through summer traffic with the A\/C working hard. Because the module remembers whatever you chose last, it works both ways: leave the system off for a week, then switch it back on with the factory button and it stays on.\u003c\/p\u003e\u003ch2\u003eIf stop-start is not engaging\u003c\/h2\u003e\u003cp\u003eAuto stop needs several conditions at once: a warm engine, enough battery charge, moderate cabin heating or cooling demand, and the vehicle fully stopped with the brake held. If any is missing, the engine keeps running. The module only remembers the button state; the factory controller still decides whether a stop is allowed.\u003c\/p\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2023–2026 GMC Canyon).\u003c\/li\u003e\n\u003cli\u003eYour GMC Canyon has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eEvery listed year\u003c\/h2\u003e\u003cp\u003eThe full fitment data for this part, by year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Canyon.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003ch2\u003eThe reason the button has to be pressed every trip\u003c\/h2\u003e\u003cp\u003eCar makers have a clear reason to make stop-start non-latching. For EPA ratings, a system that always re-enables itself is counted as on, while one that can stay off is tested on and off and the results averaged. The lower average is something no manufacturer wants on a window sticker, so the default returns at every key cycle.\u003c\/p\u003e\u003ch2\u003eWhat sits behind the system\u003c\/h2\u003e\u003cp\u003eVehicles with stop-start are built for many more engine starts than a conventional car. They typically use an AGM (absorbent glass mat) or EFB (enhanced flooded) battery that tolerates frequent cycling, along with a strengthened starter. The memory module does not change any of that hardware. When the battery reaches the end of its life, replace it with the same type and size listed for your vehicle, because a standard flooded battery is not designed for this duty.\u003c\/p\u003e\u003ch2\u003eTroubleshooting after installation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMemory does not hold:\u003c\/strong\u003e Re-seat both plugs until the locks click, then repeat the restart test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\"Unavailable\" or flashing indicator:\u003c\/strong\u003e A factory condition (battery charge, cabin temperature, engine temperature) is blocking stop-start. The module cannot override it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNew dash message:\u003c\/strong\u003e Disconnect the module and restore the factory connection. If the message goes away, email support with the VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto-stop still happens:\u003c\/strong\u003e The last selection was on. Turn Auto Stop\/Start off with the button; that state carries over from then on.\u003c\/p\u003e\u003ch2\u003eBefore you plug it in\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIgnition off, transmission in Park, fob outside the cabin.\u003c\/li\u003e\n\u003cli\u003eInstructions for your exact model at hand.\u003c\/li\u003e\n\u003cli\u003eConnector location confirmed against the photos before any panel comes off.\u003c\/li\u003e\n\u003cli\u003eA plastic pry tool for clips, if the connector sits behind trim.\u003c\/li\u003e\n\u003cli\u003eBoth connector locks fully engaged after fitting.\u003c\/li\u003e\n\u003cli\u003eModule and lead fixed in place, clear of pedals, steering and heat.\u003c\/li\u003e\n\u003cli\u003eTest: choose your Auto Stop\/Start setting, turn the vehicle off, restart and check the indicator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Canyon?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Canyon sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eWhich GMC Canyon years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2023–2026. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Canyon?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Canyon need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eWe ship free within the contiguous United States (1–2 business days to dispatch, roughly 3–4 business days in transit). If it turns out to be the wrong part, request a return authorization within 45 days; returns carry a 20% restocking fee and return postage is on the buyer. Coverage is a 3-year limited warranty. Questions go to support@automotivebypass.com, weekdays 9 a.m. to 5 p.m. PST.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493804913012,"sku":"RC-ASSE-23-02","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2023-2026_GMC_Canyon_Auto_Start-Stop_Eliminators_1.jpg?v=1793347741"},{"product_id":"auto-start-stop-eliminator-2019-2021-gmc-sierra-1500-auto-stop-eliminator","title":"2019-2021 GMC Sierra 1500 Auto Start Stop Eliminator | Plug \u0026 Play","description":"\u003cp\u003eA plug-and-play memory harness for the 2019–2021 GMC Sierra 1500. Out of the factory, Auto Stop\/Start comes back on at every key cycle. This module remembers your last choice and sends it again at the next start. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eYou can still use the original button at any time. Whatever you select last is what the module repeats on the next start. Take the module out and the vehicle behaves exactly as it did from the factory.\u003c\/p\u003e\u003ch2\u003eCovered model years\u003c\/h2\u003e\u003cp\u003eListed applications (each row is a 100% fitment match for the factory connector this part uses):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Sierra 1500: 2019–2021\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor reference, the GMC Sierra 1500 in these years is a full-size pickup offered with 2.7L turbo four-cylinder, 4.3L V6, 5.3L V8, 6.2L V8 and 3.0L Duramax turbo-diesel engines. Trim levels are not split out in the table, so confirm that your vehicle has the stop-start button before ordering.\u003c\/p\u003e\u003ch2\u003eHow factory stop-start works on the GMC Sierra 1500\u003c\/h2\u003e\u003cp\u003eOn the GMC Sierra 1500, Auto Stop\/Start shuts the engine down at a stop and fires it back up as the brake is released. You can switch it off with the dash button, but the choice is not saved. The next ignition cycle brings the default back. The module keeps the choice you made instead.\u003c\/p\u003e\u003ch2\u003eWhat to expect\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHolds the stop-start button state between drives.\u003c\/li\u003e\n\u003cli\u003eLets you re-enable the system with the factory button at any time.\u003c\/li\u003e\n\u003cli\u003eLeaves no permanent change after removal.\u003c\/li\u003e\n\u003cli\u003eLeaves engine and transmission software untouched.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTypical reasons to keep it off\u003c\/h2\u003e\u003cp\u003eDrivers usually switch stop-start off for comfort or habit. A restart at every stop is noticeable in a full-size pickup, the climate system may run at reduced output while the engine is off, and quick moves into traffic feel slower when the engine has to fire first. If those are your reasons, you probably press the button on every drive now. With the module, you press it once.\u003c\/p\u003e\u003ch2\u003eBattery and charging\u003c\/h2\u003e\u003cp\u003eIf the stop-start indicator shows the system as unavailable, test the battery before anything else. On stop-start vehicles that is the most common cause. A replacement should match the original specification (AGM or EFB), and some manufacturers call for a battery monitor reset after the swap.\u003c\/p\u003e\u003ch2\u003eConditions the factory system checks\u003c\/h2\u003e\u003cp\u003eAuto stop needs several conditions at once: a warm engine, enough battery charge, moderate cabin heating or cooling demand, and the vehicle fully stopped with the brake held. If any is missing, the engine keeps running. The module only remembers the button state; the factory controller still decides whether a stop is allowed.\u003c\/p\u003e\u003ch2\u003eWhere it connects\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Work with the ignition off. Seat each connector until its lock engages, then secure the module with the supplied ties or tape so it cannot rattle or touch pedals, steering parts or anything hot. Start the vehicle, press the stop-start button once, then restart to confirm the choice is held.\u003c\/p\u003e\u003ch2\u003eBefore blaming the module\u003c\/h2\u003e\u003cp\u003eA warning light that appears after installation usually means a connector is not fully seated. Switch the ignition off, reseat both ends until the locks click, and test again. If the light stays on, remove the module and confirm the vehicle is fault-free on its own before contacting support.\u003c\/p\u003e\u003ch2\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2019–2021 GMC Sierra 1500).\u003c\/li\u003e\n\u003cli\u003eYour GMC Sierra 1500 has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eThe full fitment data for this part, by year:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Sierra 1500.\u003c\/p\u003e\u003ch2\u003eWhat sits behind the system\u003c\/h2\u003e\u003cp\u003eVehicles with stop-start are built for many more engine starts than a conventional car. They typically use an AGM (absorbent glass mat) or EFB (enhanced flooded) battery that tolerates frequent cycling, along with a strengthened starter. The memory module does not change any of that hardware. When the battery reaches the end of its life, replace it with the same type and size listed for your vehicle, because a standard flooded battery is not designed for this duty.\u003c\/p\u003e\u003ch2\u003ePreparing for installation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSwitch everything off and take the key or fob out of range.\u003c\/li\u003e\n\u003cli\u003eGo through the model-specific instructions first.\u003c\/li\u003e\n\u003cli\u003eMatch the vehicle connector to the module before unplugging anything.\u003c\/li\u003e\n\u003cli\u003eRelease clips with a trim tool instead of pulling on wires.\u003c\/li\u003e\n\u003cli\u003eListen for the click on each latch.\u003c\/li\u003e\n\u003cli\u003eTie the module down so it stays quiet and away from moving parts.\u003c\/li\u003e\n\u003cli\u003eRun a restart test to confirm the memory works before refitting trim.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIf something is not right\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eChoice is forgotten after restart:\u003c\/strong\u003e A plug is usually not fully home. Push each until it latches and test again.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIndicator says the system is unavailable:\u003c\/strong\u003e The vehicle has decided conditions are not right for an automatic stop. This is normal factory behavior.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning appears:\u003c\/strong\u003e Remove the module, reconnect the original plug and confirm the warning clears, then contact support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine keeps shutting off at stops:\u003c\/strong\u003e Switch Auto Stop\/Start off once. The module stores the off state for the next start.\u003c\/p\u003e\u003ch2\u003eWhy the factory default is always on\u003c\/h2\u003e\u003cp\u003eCar makers have a clear reason to make stop-start non-latching. For EPA ratings, a system that always re-enables itself is counted as on, while one that can stay off is tested on and off and the results averaged. The lower average is something no manufacturer wants on a window sticker, so the default returns at every key cycle.\u003c\/p\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eWhich GMC Sierra 1500 years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2019–2021. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Sierra 1500 sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Sierra 1500?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Sierra 1500 need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Sierra 1500?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch2\u003eShipping, returns and warranty\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493805732212,"sku":"RC-ASSE-25-01","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2019-2021_GMC_Sierra_1500_Auto_Start-Stop_Eliminators_1.jpg?v=1793347757"},{"product_id":"auto-start-stop-eliminator-2024-2026-gmc-acadia-auto-stop-eliminator","title":"2024-2026 GMC Acadia Auto Start Stop Eliminator | Plug \u0026 Play","description":"\u003cp\u003eFits the 2024–2026 GMC Acadia. The plug-and-play memory harness remembers the position of the stop-start button between drives, so the engine no longer shuts off at the first red light after every restart unless you want it to. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eIt does not delete the feature. Turning stop-start back on is the same button press as before, and the module will remember that too. Removing it returns the vehicle to its original default.\u003c\/p\u003e\u003ch2\u003eVehicles and years covered\u003c\/h2\u003e\u003cp\u003eThe fitment table for this SKU lists the following, each marked as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Acadia: 2024–2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor reference, the GMC Acadia in these years is a three-row midsize crossover offered with 2.5L turbo four-cylinder engines. Trim levels are not split out in the table, so confirm that your vehicle has the stop-start button before ordering.\u003c\/p\u003e\u003ch2\u003eHow factory stop-start works on the GMC Acadia\u003c\/h2\u003e\u003cp\u003eThe factory logic arms Auto Stop\/Start every time the engine starts. Turning it off with the button only lasts until the engine is shut down. Owners who sit in stop-and-go traffic, tow, or idle in drive-throughs often prefer it off, and that is where the repeated button press comes from.\u003c\/p\u003e\u003ch2\u003eTroubleshooting notes\u003c\/h2\u003e\u003cp\u003eA warning light that appears after installation usually means a connector is not fully seated. Switch the ignition off, reseat both ends until the locks click, and test again. If the light stays on, remove the module and confirm the vehicle is fault-free on its own before contacting support.\u003c\/p\u003e\u003ch2\u003eBattery and charging\u003c\/h2\u003e\u003cp\u003eIf the stop-start indicator shows the system as unavailable, test the battery before anything else. On stop-start vehicles that is the most common cause. A replacement should match the original specification (AGM or EFB), and some manufacturers call for a battery monitor reset after the swap.\u003c\/p\u003e\u003ch2\u003eInstallation and removal\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Disconnect nothing else and splice nothing. Once both plugs are locked, tuck the harness where it will not be pinched when the panel goes back on. Test by switching Auto Stop\/Start off, cycling the ignition and checking the indicator.\u003c\/p\u003e\u003ch2\u003eWhy owners turn it off\u003c\/h2\u003e\u003cp\u003eSome owners only want stop-start off in certain seasons or on certain trips, such as towing a trailer or crawling through summer traffic with the A\/C working hard. Because the module remembers whatever you chose last, it works both ways: leave the system off for a week, then switch it back on with the factory button and it stays on.\u003c\/p\u003e\u003ch2\u003eWhat the module does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eComes out in the same way it went in, with nothing cut.\u003c\/li\u003e\n\u003cli\u003eFuel use changes only the way it would if you pressed the off button yourself.\u003c\/li\u003e\n\u003cli\u003eCarries your stop-start choice over to the next drive.\u003c\/li\u003e\n\u003cli\u003eDoes not disable warning lights or diagnostic functions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIf stop-start is not engaging\u003c\/h2\u003e\u003cp\u003eEven with Auto Stop\/Start enabled, the engine control logic only stops the engine when conditions allow it. Typical blockers are a low battery state of charge, an engine that has not reached operating temperature, heavy heating or A\/C demand, steering input, an open door or unlatched seatbelt, and some drive modes. If the system never seems to stop the engine, one of these is usually the reason, and the module does not change that logic.\u003c\/p\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2024–2026 GMC Acadia).\u003c\/li\u003e\n\u003cli\u003eYour GMC Acadia has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eEach model year in the fitment data, listed separately:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eAcadia\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eAcadia\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eAcadia\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy the factory default is always on\u003c\/h2\u003e\u003cp\u003eUS fuel-economy testing explains the reset. If a stop-start system is non-latching, meaning it switches back on whenever the vehicle is restarted, the EPA measures fuel economy with the system working. If the driver can switch it off permanently, the EPA tests with it both on and off and averages the two, which gives a lower number. Manufacturers therefore make the system come back on at every start, and drivers who prefer it off end up pressing the button each trip.\u003c\/p\u003e\u003ch2\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Acadia.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003ch2\u003eBattery and starter on stop-start vehicles\u003c\/h2\u003e\u003cp\u003eVehicles with stop-start are built for many more engine starts than a conventional car. They typically use an AGM (absorbent glass mat) or EFB (enhanced flooded) battery that tolerates frequent cycling, along with a strengthened starter. The memory module does not change any of that hardware. When the battery reaches the end of its life, replace it with the same type and size listed for your vehicle, because a standard flooded battery is not designed for this duty.\u003c\/p\u003e\u003ch2\u003eCommon questions after fitting\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMemory does not hold:\u003c\/strong\u003e Re-seat both plugs until the locks click, then repeat the restart test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\"Unavailable\" or flashing indicator:\u003c\/strong\u003e A factory condition (battery charge, cabin temperature, engine temperature) is blocking stop-start. The module cannot override it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNew dash message:\u003c\/strong\u003e Disconnect the module and restore the factory connection. If the message goes away, email support with the VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto-stop still happens:\u003c\/strong\u003e The last selection was on. Turn Auto Stop\/Start off with the button; that state carries over from then on.\u003c\/p\u003e\u003ch2\u003ePreparing for installation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePark on level ground, shift to Park, switch the ignition off and keep the key or fob away from the vehicle.\u003c\/li\u003e\n\u003cli\u003eRead the included instructions for your model before removing any trim.\u003c\/li\u003e\n\u003cli\u003eLocate the connector named in the instructions and compare it with the plugs on the module.\u003c\/li\u003e\n\u003cli\u003eUse a plastic trim tool where a panel has to be eased out, to avoid marking the dash.\u003c\/li\u003e\n\u003cli\u003ePress each connector until the lock clicks; never force a plug that does not line up.\u003c\/li\u003e\n\u003cli\u003eSecure the module with the supplied tie or tape so it cannot rattle or touch moving parts.\u003c\/li\u003e\n\u003cli\u003eStart the vehicle, set Auto Stop\/Start the way you want it, switch off, restart and confirm the setting held.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eWhich GMC Acadia years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2024–2026. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Acadia?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Acadia sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Acadia need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Acadia?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eFree standard shipping covers the contiguous US, with dispatch in 1–2 business days and 3–4 days on the road after that. You have 45 days to request a return (pre-approval required, 20% restocking fee, buyer-paid return shipping). The module is backed by a 3-year limited warranty. For order or fitment questions, write to support@automotivebypass.com between 9 and 5 Pacific, Monday through Friday.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493809238388,"sku":"RC-ASSE-28-02","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2024-2026_GMC_Acadia_Auto_Start-Stop_Eliminators_1.jpg?v=1793347811"},{"product_id":"auto-start-stop-eliminator-2023-2025-gmc-canyon-start-stop-memory-module","title":"2023-2025 GMC Canyon Auto Start Stop Memory Module | Plug \u0026 Play","description":"\u003cp\u003eIf your GMC Canyon turns Auto Stop\/Start back on every time you start it, this plug-and-play memory harness solves that one problem: it remembers the last setting and restores it at the next ignition cycle. Coverage is the 2023–2025 GMC Canyon. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eThe factory button stays in place and still works. Press it and the module stores the new choice. Unplug the module and the vehicle goes back to stock behavior.\u003c\/p\u003e\u003ch2\u003eVehicles and years covered\u003c\/h2\u003e\u003cp\u003eThe fitment table for this SKU lists the following, each marked as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Canyon: 2023–2025\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe listing is written around the third-generation (2023-up) Canyon. Trim is not listed separately. Any trim in these years with factory stop-start and the pictured connector is covered.\u003c\/p\u003e\u003ch2\u003eWhat the factory system does\u003c\/h2\u003e\u003cp\u003eThe factory logic arms Auto Stop\/Start every time the engine starts. Turning it off with the button only lasts until the engine is shut down. Owners who sit in stop-and-go traffic, tow, or idle in drive-throughs often prefer it off, and that is where the repeated button press comes from.\u003c\/p\u003e\u003ch2\u003eConditions the factory system checks\u003c\/h2\u003e\u003cp\u003eAuto stop needs several conditions at once: a warm engine, enough battery charge, moderate cabin heating or cooling demand, and the vehicle fully stopped with the brake held. If any is missing, the engine keeps running. The module only remembers the button state; the factory controller still decides whether a stop is allowed.\u003c\/p\u003e\u003ch2\u003eInstallation and removal\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Because it is plug-in only, removal is the reverse: unplug the module and reconnect the factory connectors directly. Keep the original clips and trim fasteners if you remove a panel to reach the connector.\u003c\/p\u003e\u003ch2\u003eWhat the module does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLeaves engine and transmission software untouched.\u003c\/li\u003e\n\u003cli\u003eLets you re-enable the system with the factory button at any time.\u003c\/li\u003e\n\u003cli\u003eLeaves no permanent change after removal.\u003c\/li\u003e\n\u003cli\u003eHolds the stop-start button state between drives.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhere owners notice the difference\u003c\/h2\u003e\u003cp\u003ePressing the same button on every drive is what wears on owners. People who tow, plow, idle in pickup lines, creep through heavy traffic or simply want the engine running at a light end up making the same press dozens of times a week. On the GMC Canyon, the module turns that into a one-time choice you can still change whenever you want.\u003c\/p\u003e\u003ch2\u003eA note on the battery\u003c\/h2\u003e\u003cp\u003eMost stop-start systems watch battery condition closely through a sensor on the negative terminal. When the battery ages, the system quietly stops auto-stopping long before the battery fails to crank. Keeping the original battery type (AGM or EFB) and a clean, tight ground connection avoids a lot of confusion about why the system behaves differently from week to week.\u003c\/p\u003e\u003ch2\u003eIf something does not look right\u003c\/h2\u003e\u003cp\u003eIf a \"stop-start unavailable\" or similar message appears, check the battery first. A battery that tests weak, a recent battery replacement that was not registered where the manufacturer requires it, or a fault in the battery current sensor can all disable the system. Clear up those issues before judging how the module works, because it cannot hold a setting the vehicle refuses to accept.\u003c\/p\u003e\u003ch2\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2023–2025 GMC Canyon).\u003c\/li\u003e\n\u003cli\u003eYour GMC Canyon has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment table\u003c\/h2\u003e\u003cp\u003eEach model year in the fitment data, listed separately:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2024\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCanyon\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003ePreparing for installation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSwitch everything off and take the key or fob out of range.\u003c\/li\u003e\n\u003cli\u003eGo through the model-specific instructions first.\u003c\/li\u003e\n\u003cli\u003eMatch the vehicle connector to the module before unplugging anything.\u003c\/li\u003e\n\u003cli\u003eRelease clips with a trim tool instead of pulling on wires.\u003c\/li\u003e\n\u003cli\u003eListen for the click on each latch.\u003c\/li\u003e\n\u003cli\u003eTie the module down so it stays quiet and away from moving parts.\u003c\/li\u003e\n\u003cli\u003eRun a restart test to confirm the memory works before refitting trim.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eThe reason the button has to be pressed every trip\u003c\/h2\u003e\u003cp\u003eThe factory behavior is tied to how fuel economy is rated in the US. A stop-start system that comes back on at each restart is rated with stop-start active. A system the driver can leave off would be tested both ways and averaged, which lowers the label figure. That is why Auto Stop\/Start on the GMC Canyon resets to on, and why a memory module is the way to keep your own preference.\u003c\/p\u003e\u003ch2\u003eHardware built for frequent restarts\u003c\/h2\u003e\u003cp\u003eVehicles with stop-start are built for many more engine starts than a conventional car. They typically use an AGM (absorbent glass mat) or EFB (enhanced flooded) battery that tolerates frequent cycling, along with a strengthened starter. The memory module does not change any of that hardware. When the battery reaches the end of its life, replace it with the same type and size listed for your vehicle, because a standard flooded battery is not designed for this duty.\u003c\/p\u003e\u003ch2\u003eIf something is not right\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eMemory does not hold:\u003c\/strong\u003e Re-seat both plugs until the locks click, then repeat the restart test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\"Unavailable\" or flashing indicator:\u003c\/strong\u003e A factory condition (battery charge, cabin temperature, engine temperature) is blocking stop-start. The module cannot override it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNew dash message:\u003c\/strong\u003e Disconnect the module and restore the factory connection. If the message goes away, email support with the VIN.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto-stop still happens:\u003c\/strong\u003e The last selection was on. Turn Auto Stop\/Start off with the button; that state carries over from then on.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Canyon.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eWhy does my GMC Canyon sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eWhich GMC Canyon years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2023–2025. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Canyon?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Canyon?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Canyon need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch2\u003eShipping, returns and warranty\u003c\/h2\u003e\u003cp\u003eStandard shipping inside the lower 48 states costs nothing; allow 1–2 business days of handling plus 3–4 in transit. Returns need approval first and must be requested within 45 days. Approved returns are subject to a 20% restocking fee, with return shipping paid by the customer. A 3-year limited warranty applies. Email support@automotivebypass.com (Mon–Fri, 9–5 PST) with your VIN if you want a fitment check.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493810155892,"sku":"RC-ASSE-29-02","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2023-2025_GMC_Canyon_Auto_Start-Stop_Eliminators_1.jpg?v=1793347863"},{"product_id":"auto-start-stop-eliminator-2019-2021-gmc-sierra-1500-start-stop-memory-module","title":"2019-2021 GMC Sierra 1500 Auto Start Stop Memory Module | Plug \u0026 Play","description":"\u003cp\u003eFits the 2019–2021 GMC Sierra 1500. The plug-and-play memory harness remembers the position of the stop-start button between drives, so the engine no longer shuts off at the first red light after every restart unless you want it to. It plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003cp\u003eIt does not delete the feature. Turning stop-start back on is the same button press as before, and the module will remember that too. Removing it returns the vehicle to its original default.\u003c\/p\u003e\u003ch2\u003eFitment\u003c\/h2\u003e\u003cp\u003eThe fitment table for this SKU lists the following, each marked as a 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eGMC Sierra 1500: 2019–2021\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor reference, the GMC Sierra 1500 in these years is a full-size pickup offered with 2.7L turbo four-cylinder, 4.3L V6, 5.3L V8, 6.2L V8 and 3.0L Duramax turbo-diesel engines. The listing is written around the fifth-generation (2019-up) Sierra 1500. Trim levels are not split out in the table, so confirm that your vehicle has the stop-start button before ordering.\u003c\/p\u003e\u003ch2\u003eWhat the factory system does\u003c\/h2\u003e\u003cp\u003eWith Auto Stop\/Start active, the engine shuts off when the vehicle comes to a stop and restarts when you lift off the brake or press the accelerator. The off button is a manual override for that drive only. Turn the ignition off and back on, and the system defaults to on again, so drivers who prefer it off end up pressing the button at the start of every trip.\u003c\/p\u003e\u003ch2\u003eDay-to-day use\u003c\/h2\u003e\u003cp\u003eDrivers usually switch stop-start off for comfort or habit. A restart at every stop is noticeable in a full-size pickup, the climate system may run at reduced output while the engine is off, and quick moves into traffic feel slower when the engine has to fire first. If those are your reasons, you probably press the button on every drive now. With the module, you press it once.\u003c\/p\u003e\u003ch2\u003eWhen the engine will not auto-stop anyway\u003c\/h2\u003e\u003cp\u003eThe factory system will skip an auto stop for many reasons: battery charge below its threshold, cold coolant, high climate-control load, a steep grade, the hood or driver door open, or a 4WD or tow mode on vehicles that have them. Those checks stay in control after this module is installed. It does not force stops and it does not bypass any of those safety inputs.\u003c\/p\u003e\u003ch2\u003eWhat the module does and does not do\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIt leaves the factory button working, so you can turn stop-start back on whenever you want.\u003c\/li\u003e\n\u003cli\u003eIt does not write anything to the vehicle's modules, and removing it restores the stock default.\u003c\/li\u003e\n\u003cli\u003eIt remembers the last stop-start setting through a key cycle.\u003c\/li\u003e\n\u003cli\u003eIt does not change engine power, transmission shifts, emissions calibration or fuel trims.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDiagnostics first\u003c\/h2\u003e\u003cp\u003eA warning light that appears after installation usually means a connector is not fully seated. Switch the ignition off, reseat both ends until the locks click, and test again. If the light stays on, remove the module and confirm the vehicle is fault-free on its own before contacting support.\u003c\/p\u003e\u003ch2\u003eInstallation and removal\u003c\/h2\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced. Work with the ignition off. Seat each connector until its lock engages, then secure the module with the supplied ties or tape so it cannot rattle or touch pedals, steering parts or anything hot. Start the vehicle, press the stop-start button once, then restart to confirm the choice is held.\u003c\/p\u003e\u003ch2\u003eBattery notes for stop-start vehicles\u003c\/h2\u003e\u003cp\u003eMost stop-start systems watch battery condition closely through a sensor on the negative terminal. When the battery ages, the system quietly stops auto-stopping long before the battery fails to crank. Keeping the original battery type (AGM or EFB) and a clean, tight ground connection avoids a lot of confusion about why the system behaves differently from week to week.\u003c\/p\u003e\u003ch2\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2019–2021 GMC Sierra 1500).\u003c\/li\u003e\n\u003cli\u003eYour GMC Sierra 1500 has the factory stop-start button. Base trims or engines without stop-start have nothing for the module to remember.\u003c\/li\u003e\n\u003cli\u003eThe battery and charging system test good and no warning lights are on.\u003c\/li\u003e\n\u003cli\u003eNo aftermarket remote start, alarm or gateway bypass is wired into the same circuit. If one is, email support before ordering.\u003c\/li\u003e\n\u003cli\u003eThe connector at your install point matches the one in the product photos.\u003c\/li\u003e\n\u003cli\u003eIf you are unsure, send your VIN to support@automotivebypass.com and we will confirm fitment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eYear-by-year fitment\u003c\/h2\u003e\u003cp\u003eOne row per model year, taken from the fitment data for this SKU:\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eEngine \/ trim\u003c\/th\u003e\n\u003cth\u003eListing note\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2019\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 1500\u003c\/td\u003e\n\u003ctd\u003eAll with factory stop-start\u003c\/td\u003e\n\u003ctd\u003e100% Fitment Match | OEM-Grade Quality | Plug \u0026amp; Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eWhy stop-start resets at every start\u003c\/h2\u003e\u003cp\u003eUS fuel-economy testing explains the reset. If a stop-start system is non-latching, meaning it switches back on whenever the vehicle is restarted, the EPA measures fuel economy with the system working. If the driver can switch it off permanently, the EPA tests with it both on and off and averages the two, which gives a lower number. Manufacturers therefore make the system come back on at every start, and drivers who prefer it off end up pressing the button each trip.\u003c\/p\u003e\u003ch2\u003eTerms used on this page\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAuto Stop\/Start:\u003c\/strong\u003e GMC's name for the automatic engine stop-start feature on the GMC Sierra 1500.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNon-latching:\u003c\/strong\u003e A setting that does not stay where the driver left it after a restart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey cycle:\u003c\/strong\u003e One switch-off and restart of the vehicle. Factory stop-start resets at each key cycle.\u003c\/p\u003e\u003ch2\u003eTroubleshooting after installation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSetting not remembered:\u003c\/strong\u003e Check that both connectors are fully latched, then set Auto Stop\/Start the way you want it, switch the vehicle fully off and restart.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStop-start indicator flashes or shows unavailable:\u003c\/strong\u003e The vehicle is reporting a condition such as low battery charge, high climate demand or a cold engine. That comes from the factory logic, not the module.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWarning message after fitting:\u003c\/strong\u003e Unplug the module, reconnect the factory connector and see whether the message clears. Contact support with the VIN and a photo of the connector.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEngine still stops at lights:\u003c\/strong\u003e That means Auto Stop\/Start was left on before shutdown. Press the button once to switch it off; the module remembers that choice from the next start.\u003c\/p\u003e\u003ch2\u003ePreparing for installation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSwitch everything off and take the key or fob out of range.\u003c\/li\u003e\n\u003cli\u003eGo through the model-specific instructions first.\u003c\/li\u003e\n\u003cli\u003eMatch the vehicle connector to the module before unplugging anything.\u003c\/li\u003e\n\u003cli\u003eRelease clips with a trim tool instead of pulling on wires.\u003c\/li\u003e\n\u003cli\u003eListen for the click on each latch.\u003c\/li\u003e\n\u003cli\u003eTie the module down so it stays quiet and away from moving parts.\u003c\/li\u003e\n\u003cli\u003eRun a restart test to confirm the memory works before refitting trim.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat sits behind the system\u003c\/h2\u003e\u003cp\u003eVehicles with stop-start are built for many more engine starts than a conventional car. They typically use an AGM (absorbent glass mat) or EFB (enhanced flooded) battery that tolerates frequent cycling, along with a strengthened starter. The memory module does not change any of that hardware. When the battery reaches the end of its life, replace it with the same type and size listed for your vehicle, because a standard flooded battery is not designed for this duty.\u003c\/p\u003e\u003ch2\u003eQuestions owners ask\u003c\/h2\u003e\u003ch3\u003eWill Auto Stop\/Start come back on when I restart my GMC Sierra 1500?\u003c\/h3\u003e\u003cp\u003eNot if you turned it off before shutting down. The module repeats your last selection at the next start. If you leave it on, it stays on.\u003c\/p\u003e\u003ch3\u003eWhy does my GMC Sierra 1500 sometimes not auto-stop even when the system is on?\u003c\/h3\u003e\u003cp\u003eThe factory logic checks battery charge, engine temperature, climate load and other inputs. If any are outside range it keeps the engine running. The module does not affect those checks.\u003c\/p\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the GMC Sierra 1500?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eDoes it change engine power or fuel trims?\u003c\/h3\u003e\u003cp\u003eNo. It does not reprogram the engine or transmission computers. It only stores the stop-start button state.\u003c\/p\u003e\u003ch3\u003eWhich GMC Sierra 1500 years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2019–2021. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eDoes my GMC Sierra 1500 need the factory stop-start button for this to work?\u003c\/h3\u003e\u003cp\u003eYes. The module works with the factory stop-start system and its button. A vehicle built without stop-start has no setting for it to remember.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every GMC?\u003c\/h3\u003e\u003cp\u003eNo. Connectors and the module that holds the stop-start state differ by platform, so this SKU is matched to the fitment rows on this page. Send the VIN to support if you are unsure.\u003c\/p\u003e\u003ch3\u003eWhy does Auto Stop\/Start turn itself back on every time?\u003c\/h3\u003e\u003cp\u003eAutomakers set stop-start to default to on at each start. Under EPA test rules, a system that stays off after shutdown is tested both on and off and the results are averaged, which lowers the rated fuel economy, so most systems reset at every key cycle. The module carries your last choice across that reset.\u003c\/p\u003e\u003ch3\u003eDoes it change how the battery is charged?\u003c\/h3\u003e\u003cp\u003eNo. Charging is still managed by the vehicle. Stop-start vehicles normally use an AGM or EFB battery built for frequent restarts; replace it with the same type when it wears out.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in line with the factory connector named in the instructions, using factory-style plugs on both ends, so nothing is cut or spliced.\u003c\/p\u003e\u003ch3\u003eWill it fix a \"stop-start unavailable\" message?\u003c\/h3\u003e\u003cp\u003eNo. That message usually points to the battery or a sensor. Diagnose and repair that first.\u003c\/p\u003e\u003ch3\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with Auto Stop\/Start switched on at every start.\u003c\/p\u003e\u003ch3\u003eCan I remove it later?\u003c\/h3\u003e\u003cp\u003eYes. Unplug the module and reconnect the factory connector; the vehicle returns to its stock default.\u003c\/p\u003e\u003ch2\u003eOrdering details\u003c\/h2\u003e\u003cp\u003eShipping is free to the contiguous US. Orders leave in 1–2 business days and usually arrive 3–4 business days later. Returns are accepted within 45 days with pre-approval; a 20% restocking fee applies and the buyer covers return shipping. The part carries a 3-year limited warranty, and support@automotivebypass.com answers Monday to Friday, 9–5 Pacific.\u003c\/p\u003e","brand":"Automotivebypass","offers":[{"title":"Default Title","offer_id":56493810385268,"sku":"RC-ASSE-30-02","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2019-2021_GMC_Sierra_1500_Auto_Start-Stop_Eliminators_1_0b07a758-10bf-4613-8427-3eb621a515f4.jpg?v=1793347880"}],"url":"https:\/\/automotivebypass.com\/collections\/gmc-vehicle-products.oembed","provider":"Automotivebypass","version":"1.0","type":"link"}