{"title":"Hyundai Vehicle Products","description":"\u003cp\u003eBrowse vehicle-specific Hyundai 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":"auto-start-stop-eliminator-2020-2025-hyundai-palisade-isg-memory-harness","title":"2020-2025 Hyundai Palisade ISG Auto Stop Eliminator | Memory Harness","description":"\u003cp\u003eIf your Hyundai Palisade turns ISG (Idle Stop \u0026amp; Go) back on every time you start it, this ISG memory harness solves that one problem: it remembers the last setting and restores it at the next ignition cycle. Coverage is the 2020–2025 Hyundai Palisade. It connects at the ISG button circuit, between the switch and its factory plug.\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\u003eListed applications (each row is a 100% fitment match for the factory connector this part uses):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHyundai Palisade: 2020–2025\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe listing is written around the first-generation (2020-2025) Palisade. 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 ISG (Idle Stop \u0026amp; Go) behaves from the factory\u003c\/h2\u003e\u003cp\u003eThe factory logic arms ISG (Idle Stop \u0026amp; Go) 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\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 three-row midsize 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\u003eBefore blaming the module\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\u003eConditions the factory system checks\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\u003eInstallation and removal\u003c\/h2\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug. 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 ISG (Idle Stop \u0026amp; Go) off, cycling the ignition and checking the indicator.\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\u003eWhat to expect\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLeaves no permanent change after removal.\u003c\/li\u003e\n\u003cli\u003eLeaves engine and transmission software untouched.\u003c\/li\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\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 (2020–2025 Hyundai Palisade).\u003c\/li\u003e\n\u003cli\u003eYour Hyundai Palisade 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\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\u003e2020\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003ePalisade\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003ePalisade\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003ePalisade\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003ePalisade\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003ePalisade\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003ePalisade\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\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 ISG (Idle Stop \u0026amp; Go) the way you want it, switch off, restart and confirm the setting held.\u003c\/li\u003e\n\u003c\/ul\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\u003eQuick definitions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eISG (Idle Stop \u0026amp; Go):\u003c\/strong\u003e Hyundai's name for the automatic engine stop-start feature on the Hyundai Palisade.\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\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\u003eTroubleshooting after installation\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSetting not remembered:\u003c\/strong\u003e Check that both connectors are fully latched, then set ISG (Idle Stop \u0026amp; Go) 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 ISG (Idle Stop \u0026amp; Go) 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\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\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eWhich Hyundai Palisade years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2020–2025. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eWill ISG (Idle Stop \u0026amp; Go) come back on when I restart my Hyundai Palisade?\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\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\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug.\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\u003eIs this the same part for every Hyundai?\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 my Hyundai Palisade 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 Hyundai Palisade 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 ISG (Idle Stop \u0026amp; Go) switched on at every start.\u003c\/p\u003e\u003ch3\u003eWhy does ISG (Idle Stop \u0026amp; Go) 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 the stop-start button still work after installation on the Hyundai Palisade?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\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":56493813137780,"sku":"RC-ASSE-42-01","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2020-2025_Hyundai_Palisade_Auto_Start-Stop_Eliminators_1.jpg?v=1793348045"},{"product_id":"auto-start-stop-eliminator-2026-hyundai-palisade-isg-switch-memory-module","title":"2026 Hyundai Palisade ISG Auto Stop Eliminator | New-Generation Switch Harness","description":"\u003cp\u003eIf your Hyundai Palisade turns ISG (Idle Stop \u0026amp; Go) back on every time you start it, this switch memory harness solves that one problem: it remembers the last setting and restores it at the next ignition cycle. Coverage is the 2026 Hyundai Palisade. It plugs in between the stop-start switch and its factory connector, so the button keeps working as before.\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\u003eHyundai Palisade: 2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe listing is written around the second-generation (2026-up) Palisade. 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 ISG (Idle Stop \u0026amp; Go) behaves from the factory\u003c\/h2\u003e\u003cp\u003eEach start of the Hyundai Palisade begins with ISG (Idle Stop \u0026amp; Go) 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\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\u003eScope of the module\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eLeaves engine and transmission software untouched.\u003c\/li\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\u003c\/ul\u003e\u003ch2\u003eInstalling the switch memory harness\u003c\/h2\u003e\u003cp\u003eIt plugs in between the stop-start switch and its factory connector, so the button keeps working as before. 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 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\u003eConditions the factory system checks\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\u003eDiagnostics first\u003c\/h2\u003e\u003cp\u003eA dead or weak battery, a charging problem or an unrelated module fault will change how ISG (Idle Stop \u0026amp; Go) 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 (2026 Hyundai Palisade).\u003c\/li\u003e\n\u003cli\u003eYour Hyundai Palisade 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\u003ctr\u003e\n\u003ctd\u003e2026\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003ePalisade\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\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 ISG (Idle Stop \u0026amp; Go) the way you want it, switch off, restart and confirm the setting held.\u003c\/li\u003e\n\u003c\/ul\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\u003eGlossary\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eISG (Idle Stop \u0026amp; Go):\u003c\/strong\u003e Hyundai's name for the automatic engine stop-start feature on the Hyundai Palisade.\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\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\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 ISG (Idle Stop \u0026amp; Go) off with the button; that state carries over from then on.\u003c\/p\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 ISG (Idle Stop \u0026amp; Go) on the Hyundai Palisade resets to on, and why a memory module is the way to keep your own preference.\u003c\/p\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the Hyundai Palisade?\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\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\u003eWill ISG (Idle Stop \u0026amp; Go) come back on when I restart my Hyundai Palisade?\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 Hyundai Palisade years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2026. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eDoes my Hyundai Palisade 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 ISG (Idle Stop \u0026amp; Go) 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 Hyundai Palisade 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 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 ISG (Idle Stop \u0026amp; Go) switched on at every start.\u003c\/p\u003e\u003ch3\u003eIs this the same part for every Hyundai?\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\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt plugs in between the stop-start switch and its factory connector, so the button keeps working as before.\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 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":56493813203316,"sku":"RC-ASSE-43-01","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2026_Hyundai_Palisade_Auto_Start-Stop_Eliminators_1.jpg?v=1793348054"},{"product_id":"auto-start-stop-eliminator-2021-2023-hyundai-santa-fe-isg-memory-harness","title":"2021-2023 Hyundai Santa Fe ISG Auto Stop Eliminator | Memory Harness","description":"\u003cp\u003eBuilt for the 2021–2023 Hyundai Santa Fe, this ISG memory harness keeps ISG (Idle Stop \u0026amp; Go) in whatever state you left it. Press the button once, and the setting carries over to the next start. It connects at the ISG button circuit, between the switch and its factory plug.\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\u003eWhich Hyundai Santa Fe models it fits\u003c\/h2\u003e\u003cp\u003eEvery row below is listed as a 100% fitment match for this part:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHyundai Santa Fe: 2021–2023\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eTrim 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 ISG (Idle Stop \u0026amp; Go) behaves from the factory\u003c\/h2\u003e\u003cp\u003eOn the Hyundai Santa Fe, ISG (Idle Stop \u0026amp; Go) 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\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 Hyundai Santa Fe 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\u003eIt remembers the last stop-start setting through a key cycle.\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 does not change engine power, transmission shifts, emissions calibration or fuel trims.\u003c\/li\u003e\n\u003cli\u003eIt leaves the factory button working, so you can turn stop-start back on whenever you want.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eConditions the factory system checks\u003c\/h2\u003e\u003cp\u003eEven with ISG (Idle Stop \u0026amp; Go) 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\u003eInstallation and removal\u003c\/h2\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug. 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\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 Hyundai Santa Fe, the module turns that into a one-time choice you can still change whenever you want.\u003c\/p\u003e\u003ch2\u003eTroubleshooting notes\u003c\/h2\u003e\u003cp\u003eA dead or weak battery, a charging problem or an unrelated module fault will change how ISG (Idle Stop \u0026amp; Go) 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\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2021–2023 Hyundai Santa Fe).\u003c\/li\u003e\n\u003cli\u003eYour Hyundai Santa Fe 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\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\u003e2021\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\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\u003eInstall prep checklist\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 ISG (Idle Stop \u0026amp; Go) 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\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\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\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\u003eISG (Idle Stop \u0026amp; Go):\u003c\/strong\u003e Hyundai's name for the automatic engine stop-start feature on the Hyundai Santa Fe.\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\u003eIf something is not right\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSetting not remembered:\u003c\/strong\u003e Check that both connectors are fully latched, then set ISG (Idle Stop \u0026amp; Go) 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 ISG (Idle Stop \u0026amp; Go) 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\u003eQuestions owners ask\u003c\/h2\u003e\u003ch3\u003eDoes the stop-start button still work after installation on the Hyundai Santa Fe?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eWhich Hyundai Santa Fe years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2021–2023. 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\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug.\u003c\/p\u003e\u003ch3\u003eWill ISG (Idle Stop \u0026amp; Go) come back on when I restart my Hyundai Santa Fe?\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\u003eIs this the same part for every Hyundai?\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\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 Hyundai Santa Fe 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\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with ISG (Idle Stop \u0026amp; Go) switched on at every start.\u003c\/p\u003e\u003ch3\u003eWhy does ISG (Idle Stop \u0026amp; Go) 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 Hyundai Santa Fe 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\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\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":56493813399924,"sku":"RC-ASSE-44-01","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2021-2023_Hyundai_Santa_Fe_Auto_Start-Stop_Eliminators_1.jpg?v=1793348064"},{"product_id":"auto-start-stop-eliminator-2019-2020-hyundai-santa-fe-isg-memory-harness","title":"2019-2020 Hyundai Santa Fe auto start stop eliminator with 5.7-inch ISG memory harness. Skip repeated ISG OFF presses while retaining factory control.","description":"\u003cp\u003eThis ISG memory harness is for the 2019–2020 Hyundai Santa Fe. It stores the last stop-start setting you chose, so if you turned ISG (Idle Stop \u0026amp; Go) off on one drive, it stays off the next time you start the engine. It connects at the ISG button circuit, between the switch and its factory plug.\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\u003eVehicles and years covered\u003c\/h2\u003e\u003cp\u003eThis part is listed for these vehicles, all marked 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHyundai Santa Fe: 2019–2020\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eTrim levels are not split out in the table, so confirm that your vehicle has the stop-start button before ordering.\u003c\/p\u003e\u003ch2\u003eWhy the button resets\u003c\/h2\u003e\u003cp\u003eOn the Hyundai Santa Fe, ISG (Idle Stop \u0026amp; Go) 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\u003eBattery notes for stop-start vehicles\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\u003eWhat the module does and does not do\u003c\/h2\u003e\u003cul\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\u003eDoes not disable warning lights or diagnostic functions.\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\u003eConnecting it\u003c\/h2\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug. 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\u003eTroubleshooting notes\u003c\/h2\u003e\u003cp\u003eA dead or weak battery, a charging problem or an unrelated module fault will change how ISG (Idle Stop \u0026amp; Go) 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\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\u003eThings that already block an auto stop\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\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2019–2020 Hyundai Santa Fe).\u003c\/li\u003e\n\u003cli\u003eYour Hyundai Santa Fe 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\u003e2019\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eSanta Fe\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\u003eISG (Idle Stop \u0026amp; Go):\u003c\/strong\u003e Hyundai's name for the automatic engine stop-start feature on the Hyundai Santa Fe.\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\u003cp\u003e\u003cstrong\u003eAGM \/ EFB battery:\u003c\/strong\u003e Battery types designed for the frequent cycling of stop-start vehicles.\u003c\/p\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\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 ISG (Idle Stop \u0026amp; Go) on the Hyundai Santa Fe resets to on, and why a memory module is the way to keep your own preference.\u003c\/p\u003e\u003ch2\u003eIf something is not right\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eSetting not remembered:\u003c\/strong\u003e Check that both connectors are fully latched, then set ISG (Idle Stop \u0026amp; Go) 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 ISG (Idle Stop \u0026amp; Go) 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\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 ISG (Idle Stop \u0026amp; Go) setting, turn the vehicle off, restart and check the indicator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCommon questions\u003c\/h2\u003e\u003ch3\u003eWill ISG (Idle Stop \u0026amp; Go) come back on when I restart my Hyundai Santa Fe?\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 Hyundai Santa Fe years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2019–2020. Check the fitment table on this page against your exact model year.\u003c\/p\u003e\u003ch3\u003eWhy does my Hyundai Santa Fe 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 Hyundai Santa Fe?\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\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 ISG (Idle Stop \u0026amp; Go) switched on at every start.\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 ISG (Idle Stop \u0026amp; Go) 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\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\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug.\u003c\/p\u003e\u003ch3\u003eDoes my Hyundai Santa Fe 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 Hyundai?\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\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":56493813432692,"sku":"RC-ASSE-45-01","price":85.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2019-2020_Hyundai_Santa_Fe_Auto_Start-Stop_Eliminators_1.jpg?v=1793348074"},{"product_id":"auto-start-stop-eliminator-2025-2026-hyundai-tucson-limited-isg-memory-harness","title":"2025-2026 Hyundai Tucson Limited ISG Eliminator | Memory Harness","description":"\u003cp\u003eThis ISG memory harness is for the 2025–2026 Hyundai Tucson. It stores the last stop-start setting you chose, so if you turned ISG (Idle Stop \u0026amp; Go) off on one drive, it stays off the next time you start the engine. It connects at the ISG button circuit, between the switch and its factory plug.\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\u003eThis part is listed for these vehicles, all marked 100% fitment match:\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHyundai Tucson: 2025–2026\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe 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\u003eWhy the button resets\u003c\/h2\u003e\u003cp\u003eISG (Idle Stop \u0026amp; Go) is designed to default to on. The off switch (usually marked with an \"A\" inside a circular arrow) cancels it for the current drive. At the next start the system is armed again. That reset is intentional on the manufacturer's side, and it is the only behavior this module changes.\u003c\/p\u003e\u003ch2\u003eWhat to expect\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIt remembers the last stop-start setting through a key cycle.\u003c\/li\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 does not change engine power, transmission shifts, emissions calibration or fuel trims.\u003c\/li\u003e\n\u003c\/ul\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 Hyundai Tucson 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\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 Hyundai Tucson, the module turns that into a one-time choice you can still change whenever you want.\u003c\/p\u003e\u003ch2\u003eInstalling the ISG memory harness\u003c\/h2\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug. 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 ISG (Idle Stop \u0026amp; Go) off, cycling the ignition and checking the indicator.\u003c\/p\u003e\u003ch2\u003eDiagnostics first\u003c\/h2\u003e\u003cp\u003eA dead or weak battery, a charging problem or an unrelated module fault will change how ISG (Idle Stop \u0026amp; Go) 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\u003eIf stop-start is not engaging\u003c\/h2\u003e\u003cp\u003eA Hyundai Tucson that rarely auto-stops is often telling you something about the battery. Stop-start vehicles usually run an AGM or EFB battery, and the system is one of the first features to drop out as that battery ages. Cabin temperature requests, engine temperature and brake pressure also factor in. None of these checks are altered by the module.\u003c\/p\u003e\u003ch2\u003eFitment check\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2025–2026 Hyundai Tucson).\u003c\/li\u003e\n\u003cli\u003eYour Hyundai Tucson 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\n\u003ctr\u003e\n\u003ctd\u003e2025\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\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\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 ISG (Idle Stop \u0026amp; Go) off once. The module stores the off state for the next start.\u003c\/p\u003e\u003ch2\u003eQuick definitions\u003c\/h2\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\u003cp\u003e\u003cstrong\u003eISG (Idle Stop \u0026amp; Go):\u003c\/strong\u003e Hyundai's name for the automatic engine stop-start feature on the Hyundai Tucson.\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 ISG (Idle Stop \u0026amp; Go) 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\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\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug.\u003c\/p\u003e\u003ch3\u003eWill ISG (Idle Stop \u0026amp; Go) come back on when I restart my Hyundai Tucson?\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 Hyundai Tucson 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\u003eWhy does my Hyundai Tucson 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 ISG (Idle Stop \u0026amp; Go) 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 ISG (Idle Stop \u0026amp; Go) switched on at every start.\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\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\u003ch3\u003eDoes the stop-start button still work after installation on the Hyundai Tucson?\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 Hyundai?\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 my Hyundai Tucson 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\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\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":56493813662068,"sku":"RC-ASSE-46-01","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2025-2026_Hyundai_Tucson_Limited_Auto_Start-Stop_Eliminators_1.jpg?v=1793348080"},{"product_id":"auto-start-stop-eliminator-2022-2024-hyundai-tucson-limited-isg-memory-harness","title":"2022-2024 Hyundai Tucson Limited Auto Start Stop Eliminator | ISG Memory Harness","description":"\u003cp\u003eIf your Hyundai Tucson turns ISG (Idle Stop \u0026amp; Go) back on every time you start it, this ISG memory harness solves that one problem: it remembers the last setting and restores it at the next ignition cycle. Coverage is the 2022–2024 Hyundai Tucson. It connects at the ISG button circuit, between the switch and its factory plug.\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\u003eListed applications (each row is a 100% fitment match for the factory connector this part uses):\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHyundai Tucson: 2022–2024\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eThe 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 Hyundai Tucson\u003c\/h2\u003e\u003cp\u003eWith ISG (Idle Stop \u0026amp; Go) 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 stop-start is not engaging\u003c\/h2\u003e\u003cp\u003eA Hyundai Tucson that rarely auto-stops is often telling you something about the battery. Stop-start vehicles usually run an AGM or EFB battery, and the system is one of the first features to drop out as that battery ages. Cabin temperature requests, engine temperature and brake pressure also factor in. None of these checks are altered by the module.\u003c\/p\u003e\u003ch2\u003eWhere it connects\u003c\/h2\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug. 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\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 Hyundai Tucson 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\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\u003eScope of the module\u003c\/h2\u003e\u003cul\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 does not change engine power, transmission shifts, emissions calibration or fuel trims.\u003c\/li\u003e\n\u003cli\u003eIt remembers the last stop-start setting through a key cycle.\u003c\/li\u003e\n\u003cli\u003eIt leaves the factory button working, so you can turn stop-start back on whenever you want.\u003c\/li\u003e\n\u003c\/ul\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\u003eCheck before you order\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eModel year and model match a row in the table above (2022–2024 Hyundai Tucson).\u003c\/li\u003e\n\u003cli\u003eYour Hyundai Tucson 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\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\u003e2022\u003c\/td\u003e\n\u003ctd\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\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\u003eHyundai\u003c\/td\u003e\n\u003ctd\u003eTucson\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\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\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 ISG (Idle Stop \u0026amp; Go) setting, turn the vehicle off, restart and check the indicator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy the factory default is always on\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 ISG (Idle Stop \u0026amp; Go) on the Hyundai Tucson resets to on, and why a memory module is the way to keep your own preference.\u003c\/p\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\u003eISG (Idle Stop \u0026amp; Go):\u003c\/strong\u003e Hyundai's name for the automatic engine stop-start feature on the Hyundai Tucson.\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\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 ISG (Idle Stop \u0026amp; Go) off once. The module stores the off state for the next start.\u003c\/p\u003e\u003ch2\u003eFAQ\u003c\/h2\u003e\u003ch3\u003eWhich Hyundai Tucson years does this fit?\u003c\/h3\u003e\u003cp\u003eThe listed range is 2022–2024. 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 Hyundai Tucson?\u003c\/h3\u003e\u003cp\u003eYes. The factory button works normally. The module simply stores whatever you chose last.\u003c\/p\u003e\u003ch3\u003eHow does it connect?\u003c\/h3\u003e\u003cp\u003eIt connects at the ISG button circuit, between the switch and its factory plug.\u003c\/p\u003e\u003ch3\u003eWill ISG (Idle Stop \u0026amp; Go) come back on when I restart my Hyundai Tucson?\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\u003eWhat happens if I unplug it?\u003c\/h3\u003e\u003cp\u003eThe vehicle returns to the factory default, with ISG (Idle Stop \u0026amp; Go) switched on at every start.\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\u003eWhy does my Hyundai Tucson 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 Hyundai?\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 my Hyundai Tucson 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\u003eWhy does ISG (Idle Stop \u0026amp; Go) 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\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":56493814022516,"sku":"RC-ASSE-47-01","price":85.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1030\/8439\/2820\/files\/2022-2024_Hyundai_Tucson_Limited_Auto_Start-Stop_Eliminators_1.jpg?v=1793348089"}],"url":"https:\/\/automotivebypass.com\/collections\/hyundai-vehicle-products.oembed","provider":"Automotivebypass","version":"1.0","type":"link"}