2024 Jeep Grand Wagoneer: check engine light

Filed Jun 20, 2026 · Acceleration, Driver assistance · AZ

On June 18, 2026, I was driving my 2024 Grand Wagoneer on a busy city road. As I approached a busy intersection, I stopped at the red light. When I attempted to move forward when the light turned green, it moved a few feet (putting us in the middle of the intersection), the vehicle seized and became immobile. Almost every light on the dashboard lit up. Several messages flashed back and forth on the screen including "Service transmission" and then "service electronic stability control". I immediately tried to use the SOS function, and when they answered, they were unable to hear me. A person in a truck behind me told me to put my vehicle in Neutral so that the vehicle could move out of the road as it was blocking traffic. When I tried to turn the gear dial, it turned, but the P light stayed on and the vehicle would not go into Neutral. I checked the parking brake and it was not on, nor would it engage. The vehicle being stalled, with zero ability to move put my children and I in danger as there was not a safe place to even exit the vehicle as traffic was completely surrounding us. I tried to turn off the vehicle, but the vehicle stayed in the "run" function even after being pressed. Emergency services was my only next choice. One more push of the off button and the vehicle finally turned off. I waited for 2 minutes and tried to turn the vehicle on again. It did turn on, showing the check engine light. I then was able to put the car into gear, and it moved. I moved the vehicle out of traffic to the next available parking lot. I immediately contacted the dealership and told them I would be having the vehicle towed there for inspection and I do not feel comfortable driving this vehicle again. Unfortunately, this is the 3rd time my car has put me in a dangerous situation in the middle of an intersection, the other 2 being false crash alerts (turning left in turning lane and car thought I was going into oncoming traffic).

Filed May 18, 2026 · Engine, Fuel system · RI

Transmission and fuel injector malfunction: Vehicle shutters upon acceleration. Particularly noticeable driving up hill or when maintaining speeds. Vehicle is available for inspection upon request. Jeep acknowledges the issue, noted a malfunction with PICO data and a fuel injector repair was done under warranty. Stellantis deems the shuttering "acceptable." Safety is at risk as there is a hesitation and inconsistency in the transmission while driving. Yes the problem has been reproduced by 2 dealers, a Stellantis Starcase was opened and Stellantis has a SOL published for service centers but is refusing to release the fine print of the SOL to the consumer. The vehicle has not been inspected by the manufacturer despite 3 open cases requesting that a Stellantis Master Technician review the issue. Yes there were several warning lights including "Service Transmission" and "Check Engine" that began appearing at 6000 miles. The issue persists today at 14k miles.

Filed Jan 7, 2026 · Electrical, Engine · MO

While driving my 2024 Jeep Wagoneer, the vehicle experienced a sudden and complete loss of power without warning. The engine shut off while the vehicle was in motion, including during a turn. When this occurred, I lost power steering, which made the vehicle difficult to control and created an immediate safety hazard. Prior to this incident, the vehicle had ongoing issues including overheating, repeated check engine lights, and power steering warnings. The vehicle has been taken to the dealership multiple times. A thermostat repair was previously performed, and at a later visit I was told there was an electrical/battery wiring issue that was repaired. Despite these repairs, the problem has continued. The loss of power while driving placed my safety and the safety of others at risk, especially since the failure occurred without warning and resulted in loss of steering assistance. I no longer feel the vehicle is safe to operate, particularly when transporting my children. The issue has been inspected by the dealership on multiple occasions; however, the root cause has not been permanently identified or resolved. Warning lights, including the check engine light, have appeared intermittently prior to the failure. The defect appears to be recurring and

Filed Jan 1, 2026 · Electrical, Engine · TN

While stopped in traffic with the brake pedal depressed and Auto Hold enabled, my 2024 Jeep Grand Wagoneer L has repeatedly jerked and shifted itself into Park without driver input. This typically occurs after being stopped approximately 20+ seconds, often while a turn signal is activated for a left or right turn. When the failure occurs, the vehicle disables driver-assist systems, the turn signals behave like emergency flashers, false rear tail light error messages appear, and the check engine light turns on and remains illuminated. The vehicle will not move until the brake pedal is applied and the transmission is manually shifted back into Drive. The issue has occurred multiple times at different locations and dates. A recent repair replaced the vehicle’s primary electronics control module(s), but the same behavior occurred again afterward. Due to the unintended shift into Park and unpredictable system behavior, the vehicle is now parked and not being driven because I do not trust it to operate safely in traffic.

Filed Jul 8, 2025 · Engine · MI

n early January 2025, we purchased 2024 Jeep Wagoneer L that began displaying check engine warnings and experiencing significant performance issues within the first week. The vehicle was brought into the dealership (Golling Jeep in Bloomfield Hills, MI) on multiple occasions—first on January 22nd and again on February 7, 2025—for drivetrain-related concerns, including rough idling, and warning lights. The vehicle was returned after temporary fixes, but the issues quickly recurred. On February 21, 2025, the vehicle was returned to the dealership and has remained there ever since. Despite repeated diagnostic and repair attempts over the last five months, the dealership has been unable to resolve the issue. As of July 2, 2025, their latest communication indicates that a complete engine replacement may be required. The symptoms included drivability issues and engine malfunction indicator lights. The vehicle’s reliability deteriorated to the point where we felt unsafe using it for family transportation, especially on highways or long trips. The issue has been inspected and repeatedly confirmed by certified dealership technicians. The vehicle is available for inspection. There were no reported accidents or injuries, but the repeated and unresolved engine issues present a clear risk to occupant safety and undermine vehicle performance. This ongoing situation has rendered the vehicle inoperable for over 150 days while under warranty, with no final resolution provided.