2012 Jeep Grand Cherokee: check engine light

Filed Apr 16, 2026 · FL

Check Engine light came on & Auto shop says when they checked under dash, computer says “Emissions” problem. They have to do a “smoke test” to see where there is a leak!!!

Filed Jan 16, 2026 · Electrical, Engine · NC

I brought my vehicle to the Jeep of concord for a fuel pump relay recall and oil change on 11/12/25. Prior to 11/12 the vehicle did not experience any of the issues described below. On 11/13/25, a dealership representative sent an inspection video stating the vehicle was in immaculate condition following the recall repair. However, within less than 24 hours, the check engine light illuminated, and additional issues began occurring intermittently. After the recall work, the vehicle began experiencing intermittent warning lights, including service four wheel drive, traction control, and check engine. These warnings appear unpredictably and are sometimes accompanied by loss of vehicle functions, creating unsafe driving conditions. The vehicle has also experienced overheating since these issues began. Sometimes turning the vehicle off and then on would temporarily correct the problem if it would recrank. The failures occur intermittently, making them difficult to reproduce or diagnose, and they pose serious safety risks, including the potential for sudden loss of power, steering assistance, or drivability while the vehicle is in motion. On multiple occasions, the issues have left me stranded. I returned the vehicle to the dealership on 1/8/26. On 1/9/26, I received an inspection video from the dealership identifying a transmission issue for the first time. The rep stated they “double-checked” the recall wiring but confirmed that no manufacturer engineer inspected the vehicle, despite my request to escalate this as a STAR case due to safety concerns. The intermittent warning lights, overheating, and transmission concerns remain unresolved and Stellantis refused to escalate the issue. The dealership currently retains possession of my vehicle. I am concerned the recall repair may have been performed wrong or inadequately inspected, resulting in ongoing intermittent safety-related failures affecting multiple vehicle systems. I am requesting that the federal safety agency investigate & confirm

Filed Jan 16, 2026 · Electrical, Transmission · 190,000 miles · NC

The contact owns a 2020 Ford Escape. The vehicle was repaired under the federal safety agency Campaign Number: 19V813000 (ELECTRICAL SYSTEM), but the failure worsened. The contact stated that after the vehicle was retrieved from the dealer, the check engine warning light illuminated. The contact stated that on a separate occasion, a week after the vehicle was repaired, the traction control warning light, the check engine warning light, and the yellow light with an arrow across were illuminated. The message "Service 4-WD" was displayed on the instrument panel. In addition, the contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal, and the vehicle stalled. The contact was able to coast to the side of the road and failed to restart. The contact left the vehicle on the side of the road. The following day, the contact sent someone to pick up the vehicle, and the vehicle restarted. The vehicle was taken to the residence. The contact called the dealer and was informed that a diagnostic cost would be charged, and the contact refused. The vehicle was not repaired. The contact stated that on a separate occasion, while driving at an undisclosed speed, the vehicle stalled. The contact was able to coast to the side of the side of the road. The vehicle was restarted. The vehicle was taken to the dealer. The contact was informed that the transmission had failed. The vehicle was not repaired. The manufacturer was made aware of the issue. The contact requested a field inspector to inspect the vehicle. The manufacturer stated that the dealer stated that the failure was not related to the recall, and no assistance was offered. The failure mileage was approximately 190,000.

Filed Jul 25, 2025 · Electrical, Engine · IL

While driving the road whether highway our town… my vehicle will stall out. I can’t safely pass because my car loses power.. check engine light starts blinking then traction control lights come on and then battery light. I have to turn the car off after turning flashers on put it in park and restart after a few seconds. This vehicle is VERY UNSAFE to DRIVE.

Filed Jul 15, 2025 · Electrical · MI

The contact owns a 2012 Jeep Grand Cherokee. The contact stated while driving at various speeds, the vehicle stalled while depressing the accelerator pedal. The check engine warning light was illuminated on the instrument panel. The contact then received notification of the federal safety agency Campaign Number: 15V115000 (Electrical System). The vehicle was taken to a dealer and the contact was informed that the recall repair was completed. The contact stated that the failure persisted after the recall repair. The dealer was notified of the failure and the contact was informed that there were no recalls or warranty on the vehicle. The manufacturer was not notified of the failure. The failure mileage was unknown.

Filed Jun 11, 2025 · Acceleration, Brakes · 87,000 miles · TX

The contact owns a 2012 Jeep Grand Cherokee. The contact stated while driving 40 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the RPM fluctuated before the transmission slammed into gear. The contact stated that the ABS warning light and another unknown warning light were illuminated. The vehicle was towed to an independent mechanic and was diagnosed with transmission failure, and a failure with the accelerator pedal. The accelerator pedal was replaced, and other unknown parts were replaced on the transmission. The contact stated that the failure persisted. The contact stated that on a separate occasion, while driving 30 MPH, the brake pedal was depressed but failed to stop the vehicle immediately and the vehicle stalled. After several attempts, the vehicle was able to restart. The vehicle was towed back to an independent mechanic, and it was diagnosed that the throttle had failed and needed to be replaced, and the accelerator pedal also needed to be replaced. The vehicle was repaired. The contact stated that the failure persisted. The contact stated that recently the vehicle failed to exceed 40 MPH while driving. The contact stated that the check engine warning light and ABS system warning light were illuminated. The vehicle was not diagnosed or repaired after the most recent failure. The manufacturer was notified of the failure but denied assistance in covering the cost of the repair. The failure mileage was approximately 87,000.

Filed Apr 30, 2025 · Fuel system · MA

I have had to fix several issues since purchasing the vehicle. Most recently the oil filter house and the radiator. I am now having issues with the gas sensor. From what was explained to me, the sensor is not registering the amount of fuel in the tank and therefore believes there is low gas in the car. The check engine light turns off and on and the car begins to shake uncontrollably and it almost feels like it will shut off.

Filed Feb 20, 2025 · Fuel system · 189,000 miles · MD

The contact owns a 2012 Jeep Grand Cherokee. The contact stated that while the vehicle was parked, the vehicle failed to start. The check engine warning light was illuminated. The contact stated that the accelerator pedal was depressed, but the vehicle failed to respond, and was stalling. The vehicle was towed to an independent mechanic where it was diagnosed and determined that the vehicle was not starting due to a fuel-related failure. The vehicle was then towed to the dealer where it was repaired under the federal safety agency Campaign Number: 19V813000 (ELECTRICAL SYSTEM). The dealer then diagnosed the vehicle with a faulty fuel pump. The contact stated that the vehicle had experienced the same failure listed in the federal safety agency Campaign Number: 22V406000 (FUEL SYSTEM, DIESEL); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 189,000.

Filed Aug 14, 2024 · Electrical, Engine · CA

So I just bought this car from a dealer about a year now and I was driving down the fwy. Heading to work And suddenly my car turned off and my steering wheel got really hard to make any turns there was no way I could’ve stopped in the middle of the fwy. To stop and start the engine. luckily I was able to pull over and check the car I was full on gas and I looked up common issues that could turn off a running engine checked all fuses didn’t see any problems with it didn’t see any sort of corrosion in the battery cables and their was no check engine on the dash board. Theirs also been times were it randomly takes a long time cranking and won’t start right away so I literally wait for the engine to sit for a while and start the car. My guess it’s the crankshaft position or the fuel pump going out but that’s why I’m here to find out if theirs any recalls related to this issue. I’ve been told their was a recall for a relay issue

Filed Dec 15, 2023 · Electrical · NJ

The contact owns a 2012 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the temperature gauge started to indicate that the vehicle was overheating. The check engine warning light was illuminated. The contact also stated that the failure began one month after receiving the vehicle back from the dealer following a recall repair. The vehicle was towed to an independent mechanic, who was unable to determine the cause of the failure. The vehicle was not repaired. After investigating the failure, the contact related the failure to the federal safety agency Campaign Number: 19V813000 (Electrical System); the VIN was included, but the vehicle had already been repaired under the recall. The manufacturer was notified of the failure but provided no assistance. The failure mileage was unknown.

Filed Aug 23, 2023 · Acceleration, Electrical · CO

We were about an hour away from home (in the mountains) and our Jeep had been running fine. We had stopped for a while and when we got back to our Jeep and started it, just about every warning light on the dash board came on and wouldn’t go off (the brake light, check engine, airbag, ABS, etc.) The middle of the dash was also flashing different messages…”service park assist and service power steering”. We started to drive and the car was jerking really hard while it was shifting gears. We think it was getting stuck in a high gear because it would hardly drive after we stopped at a stoplights. We turned our hazards on and just tried to make it to an auto parts shop. Our windshield wipers were automatically coming on and the speedometer and RPM needle were both going up and down really quickly. We spent just shy of two long months without our Jeep while it was in the shop. The mechanic ultimately replaced the clock spring and the TPIM. Meanwhile, I joined a Jeep Grand Cherokee Facebook group and it seems like this is a pretty common issue in Jeep Grand Cherokees. It was a costly repair and was very difficult for us to go without our second car for two months. I really feel like this issue needs to be addressed by Jeep.

Filed Aug 17, 2023 · Body, Engine · 68,000 miles · TN

The contact owns a 2012 Jeep Grand Cherokee. The contact stated that the dashboard was wrinkled. The contact stated that while driving at an undisclosed speed and making a turn, the check engine warning light illuminated. The vehicle was taken to the local dealer, where it was determined that the dashboard needed to be replaced. The vehicle was not repaired. The manufacturer was contacted. The approximate failure mileage was 68,000.