{"product_id":"auto-start-stop-eliminator-2016-2019-cadillac-cts-auto-start-stop-eliminator","title":"2016-2019 Cadillac CTS Auto Start Stop Eliminator","description":"\u003cp\u003eBuilt for the 2016–2019 Cadillac CTS, this inline memory harness keeps Auto Stop\/Start in whatever state you left it. Press the button once, and the setting carries over to 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\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\u003eWhich Cadillac CTS models it fits\u003c\/h2\u003e\u003cp\u003eThis part is listed for these vehicles, all marked 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eCadillac CTS: 2016–2019\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eFor reference, the Cadillac CTS in these years is a midsize sport sedan offered with 2.0L turbo four-cylinder and 3.6L V6 engines, most of the driving it sees is daily commuting, ride-share duty and highway travel. The listing is written around the third-generation (2014-2019) CTS. 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 Auto Stop\/Start behaves from the factory\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\u003eBattery notes for stop-start vehicles\u003c\/h2\u003e\u003cp\u003eVehicles with stop-start normally use an AGM or EFB battery sized for repeated restarts. If you replace it, use the same type and size, and follow the manufacturer's battery reset or registration step where one exists. A wrong or unregistered battery can leave the stop-start system disabled, and that has nothing to do with this module.\u003c\/p\u003e\u003ch2\u003eWhat changes after installation\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDoes not disable warning lights or diagnostic functions.\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\u003cli\u003eCarries your stop-start choice over to the next drive.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstalling the inline memory harness\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\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\u003eWhere owners notice the difference\u003c\/h2\u003e\u003cp\u003eDrivers usually switch stop-start off for comfort or habit. A restart at every stop is noticeable in a midsize sport sedan, 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\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 (2016–2019 Cadillac CTS).\u003c\/li\u003e\n\u003cli\u003eYour Cadillac CTS 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\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\u003e2016\u003c\/td\u003e\n\u003ctd\u003eCadillac\u003c\/td\u003e\n\u003ctd\u003eCTS\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\u003e2017\u003c\/td\u003e\n\u003ctd\u003eCadillac\u003c\/td\u003e\n\u003ctd\u003eCTS\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\u003e2018\u003c\/td\u003e\n\u003ctd\u003eCadillac\u003c\/td\u003e\n\u003ctd\u003eCTS\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\u003e2019\u003c\/td\u003e\n\u003ctd\u003eCadillac\u003c\/td\u003e\n\u003ctd\u003eCTS\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\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\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\u003eBattery and starter on stop-start vehicles\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\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 Cadillac's name for the automatic engine stop-start feature on the Cadillac CTS.\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\u003eInstall prep checklist\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\u003eFAQ\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 Auto Stop\/Start come back on when I restart my Cadillac CTS?\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 Cadillac CTS?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eWhich Cadillac CTS years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2016–2019. Check the fitment table on this page against your exact model year.\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 my Cadillac CTS 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 Cadillac CTS 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 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. Both ends are factory-style plugs, so nothing is cut or spliced.\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\u003eIs this the same part for every Cadillac?\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\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":56493791707508,"sku":"RC-ASSE-08-02","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2016-2019_Cadillac_CTS_Auto_Start-Stop_Eliminators_1.jpg?v=1793347464","url":"https:\/\/automotivebypass.com\/products\/auto-start-stop-eliminator-2016-2019-cadillac-cts-auto-start-stop-eliminator","provider":"Automotivebypass","version":"1.0","type":"link"}