Jeep Grand Cherokee check engine light comes on

Filed Nov 3, 2026 · Electrical, Fuel system · CA

I am filing an urgent safety complaint regarding my 2023 Jeep Grand Cherokee 4xe Plug-in Hybrid. During inspection, the mechanic discovered that the electrical connector and wiring associated with the fuel pump were burned and melted inside the gasoline fuel tank. The entire fuel pump assembly was subsequently replaced. Before the failure was discovered, the dashboard indicated approximately 110 kilometers of remaining gasoline driving range, but the mechanic found the fuel tank completely empty. The vehicle also experienced engine vibration and an illuminated check engine warning light. The mechanic suggested that operating without gasoline may have damaged the fuel pump. However, the exact cause of the electrical overheating and melted wiring has not been established. I am extremely concerned about the potential fire hazard associated with electrical damage inside the gasoline tank. I request that the federal safety agency investigate the cause of this failure, the accuracy of the fuel level indication, and whether other Jeep Grand Cherokee 4xe vehicles may be affected.

Filed Nov 2, 2026 · Brakes, Transmission · CT

My 2014 Jeep Grand Cherokee began popping out of gear (aka shifting into neutral suddenly) while at cruising speed several months ago. This causes the car to lose drive altogether at highway speed and requires the driver to pull to the side of the road in order to restart and resolve the issue. Before the restart, the power brakes fail to work any long and the driver needs to press very hard on the pedal in order to keep the vehicle stopped or slowed. This has no put myself and the drivers behind me at significant risk if the driver (my daughter) or me are unable to pull to the side of the road safely or if the cars behind us cannot avoid us. My mechanic cannot diagnose the issue. We changed the transmission and the problem has persisted. There are no warning lights or check engine lights associated with the error. It seems very similar to what's happening here -> [XXX] However, the Jeep dealership wants way too much money to diagnose the issue. I've seen the issue reported by other 2014 Grand Cherokee owners in forums with no resolution. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 28, 2026 · Electrical · 791 miles · NY

The contact owns a 2026 Jeep Grand Cherokee. The contact stated that the vehicle failed to start. The vehicle was jumpstarted and taken to the dealer, where the battery for the Auto START/STOP system was replaced; however, the failure recurred several days later. The vehicle was returned to the dealer, where a reconfiguration was completed as per the manufacturer’s instructions. The contact stated that both batteries were charged and tested, and the contact was informed that the batteries had passed the test; however, the voltage went from 12.5 volts to 11.7 volts in three days. The check engine warning light was illuminated, and the messages "Battery Needs Charging" and "Battery Low" were displayed. The vehicle was returned to the dealer a third time and remained for additional diagnostic tests. The manufacturer was notified of the failure by the dealer. The failure mileage was 791.

Filed Oct 20, 2026 · Electrical, Engine · CA

[Incident Description & System Failure] On XXX, at approximately 30,340 miles, hybrid propulsion and charging system completely failed while the vehicle was in motion. The vehicle suffered a sudden "Loss of Motive Power" and stalled completely on a public road. The vehicle was towed immediately and is currently inspection upon request. [Safety Risks Experienced] The vehicle suffered a catastrophic power failure and stalled suddenly in the middle of a public road. This created an immediate hazard for a severe rear-end collision. Furthermore, according to the manufacturer's official Safety Recall 68C (the federal safety agency 25V‑741), this specific battery pack poses an unmitigated vehicle fire risk, threatened by both traffic hazards and potential thermal runaway. [Dealer Confirmation & Inspection Status] The defect has been officially reproduced, confirmed, and documented by an authorized dealer. Following the sudden stall, the vehicle was towed to McPeeks CDJR of [XXX] on XXX (Repair Order #XXX). The service advisor and technicians confirmed the failure, noting the active check engine light and red battery light. The vehicle is currently under inspection and storage at the dealership, as the manufacturer's technicians have been unable to remedy this recurring. [Prior Warning Lamps, Messages & Symptoms] At the same time the engine stalled on XXX, the dashboard illuminated a red battery warning light and a check engine light, by a system message: "Service Charging System. The vehicle had a long history of chronic hybrid system symptoms and was previously brought to the dealer for multiple official safety recalls regarding the high-voltage battery (95B in Dec 2024, 73C in XXX, and 68C in XXX). The manufacturer issued a Warranty Extension Letter (Program XU1) for this defective battery pack. Despite all prior software flashes and recall "remedies" performed by the dealer, the system completely failed, proving the defect is incurable. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 4, 2026 · Acceleration, Brakes · TX

My 2026 Jeep Grand Cherokee has experienced repeated engine shutdown and braking-related failures while driving. The vehicle is currently at an authorized Jeep dealership and is available for inspection upon request. On May 17, 2026, while driving to Fair Oaks dealership due to an unusual engine noise, the check engine and brake warning lights came on. The engine then shut off while I was in the roadway, and I experienced loss of normal braking ability. I was frightened but managed to move the vehicle safely to the side of the road without a collision. The dealer inspected the vehicle, replaced the spark plugs, and returned it on May 29. I later received a recall notice involving the spark plug issue. I returned the vehicle to the dealer on September 11, 2026, and the recall/service work was completed. On September 23, 2026, while driving to work, a similar dangerous failure occurred again. The check engine light came on, the engine shut off while the vehicle was moving, and I again experienced a braking problem. I was terrified but fortunately managed to stop safely. The vehicle was towed to the authorized Jeep dealership. The dealer inspected it and told me the problem was related to the auxiliary battery and repaired it. The problem has therefore occurred more than once and has been inspected/repaired by an authorized Jeep dealer. Jeep Customer Care has also been notified under Case #98217351. To my knowledge, police and insurance representatives have not inspected the vehicle because no collision occurred. I have not picked up the vehicle because I no longer feel safe driving it. An engine shutting off together with braking problems while the vehicle is moving creates a serious risk of a crash, injury, or death to me, my family, other motorists, and pedestrians. No one has been injured so far, but I believe we were extremely fortunate. I request that the federal safety agency investigate this repeated safety failure.

Filed Sep 25, 2026 · Engine · CA

Sudden loss of power while driving 75mph in the fast lane on [XXX] in [XXX]. My 2018 with the 3.0ltr Eco diesel engine was involved in a sever life-threatening event That caused my engine to fail while driving and I request immediate corporate escalation! On XXX while driving in the fast lane after just fueling up not more than 15-20min prior. my vehicle suffered, for no known reason, a catastrophic engine failure. There are no codes to be found (so said the dealer) "we cant tell you what happened to your engine", the dealer has sent me in writing. All of the sudden the dashboard read, " PULL OVER AND PUT IN PARK IMMEDIATELY".... I lost all power and was fortunate to ba able to catch an off-ramp to get off of the highway. After a 350mi tow to the walnut creek chrysler/jeep dealer. They were unable to tell me what went wrong or why a simple oil/ check engine light never happened to alert the operator? I was then told it would be a $35k engine replacement? most diesel engines historically run 250,000 to 500,000 miles and up with regular maintenance... I purchased this showroom quality vehicle from a private seller... never having even been towed 1 single time in its life before this event. I need to know what recourse that may exists for me regarding this most tragic and unsafe situation... So foreign investment groups can purchase USA auto factories and turn them into horible products... and that's okay? I have driven well over 1 million miles in my lifetime. I currently own 2 trucks, an Audi A3, 8 motorcycles, and a sprinter van RV. I formerly owned an Eagle tour coach. I am an experienced rider driver of nearly 40yrs on the road. please help [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 20, 2026 · Brakes, Driver assistance · MI

ABS module completely malfunctioned from a shortage. Threw up 7 different codes, even threw up my check engine light for a bit. Can’t even use cruise control because my “memory system” and “park sense” are unavailable. Sometimes it makes the wheel super stiff and the acceleration and break pedals super sticky. I see many recalls for 2020 Jeep Grand Cherokee’s, and believe mine should be included. I should’ve have to pay $3,000 out of pocket for something a ton of people are reporting as an issue. I found one reported a few months back with the same issue.

Filed Sep 18, 2026 · Electrical · 250,000 miles · FL

The contact owns a 2011 Jeep Grand Cherokee. The contact stated that while driving at a slow speed, the A/C unit started blowing warm air, with the battery, ABS, and malfunction indicator warning lights illuminated. The vehicle stalled, and the contact to pulled over to the shoulder. Upon inspection, there was extreme heat and a burning odor coming from the engine compartment. A mobile mechanic jumpstarted the vehicle and the vehicle was driven to the residence. The battery was replaced, but the failure recurred immediately after the next start-up. The contact associated the failure with the federal safety agency Campaign Number: 17V435000 (Electrical System); however, the dealer confirmed that the VIN was not included in the recall. The failure mileage was approximately 250,000.

Filed Sep 15, 2026 · Engine · MO

Service engine light came on and code read misfire. Tech said that ignition coil one needs replaced and it needed a tune up. They replaced all ignition coils, spark plugs and intake manifold gasket with tune up. Tech said that coolant looked low and checked the reservoir. He said there's a lot of chunks and dried out looking coolant in the reservoir. Recommended a coolant flush at the dealership. Tune up cost almost 1000 dollars. A few days later my teenage son was driving on the highway at 70 mph and out of nowhere a engine overheating warning flashed and the temperature went all the way up and then down and back and forth. My son had to try and get pulled off of the busy highway while overheating. Car was blowing out white smoke. He was stranded over an hour away from home. Had to have car towed. Was told by the mechanic the next day that the plastic oil cooler had cracked and the oil got into the coolant. Causing the engine to fail at only 104,807 miles! Cost for a new motor was 10,400! Shop said he just had the same thing happen on another vehicle with the same engine the week before mine! I had to pay out of pocket for the new engine. Obviously there's a safety defect in the plastic oil cooler causing several people to experience the same thing happening! There was no warning before the oil got into the coolant. Why is the same thing happening to so many people but nothing is being done about it? Having to replace the engine at 104,807 miles is insane. How many times does it have to happen before they recall the problem?

Filed Sep 11, 2026 · Electrical, Fuel system · NY

- The high-voltage (HV) battery system and related hybrid control processor (HCP) software — repeatedly, across three separate incidents (Jan 2026 coolant heater/HCP fault, June 2026 front axle disconnect fault, Sept 2026 full HV battery replacement). Also affected: front axle disconnect actuator (drivetrain). Yes, available for inspection — vehicle is at Chrysler Dodge Jeep Ram of Clifton Park. - Recall 68C: HV battery fire risk (owners told not to charge, park away from structures). Recall 73C: possible loss of drive power while driving, increasing crash risk. Recall 20C: head restraints failing to lock, increasing injury risk in a crash. - Yes — confirmed and repair attempted by an authorized Stellantis dealer (Chrysler Dodge Jeep Ram of Clifton Park) on three separate repair orders (RO #106187, #109788, and the current September 2026 visit), with documented diagnostic trouble codes each time (P29BB, C1463, and the current critical HV battery code). - Inspected/repaired by the authorized dealer under manufacturer recall directives (FCA/Stellantis) each time. No police or insurance involvement, since no accident occurred. - Yes — Check Engine Light (Jan 2026, code P29BB), Service 4WD light (June 2026, code C1463), and Check Engine Light again (Sept 2026, current critical HV battery code). Recall notices (68C, 73C, 20C, etc.) were also received separately as advance manufacturer warnings before some of these symptoms appeared.