2023 Jeep Grand Wagoneer Complaints

Assessment of Ongoing Mechanical & Safety Issues – 2023 Jeep Grand Wagoneer To Whom It May Concern, I am providing a clear, factual assessment of the ongoing issues with my 2023 Jeep Grand Wagoneer, which I purchased for $108,000 and have owned for less than two years. During this time, I have experienced twelve separate mechanical and functional failures, several of which have rendered the vehicle undriveable for prolonged periods. Below is a summary of the major issues that continue to impact the reliability, safety, and usability of this vehicle. 1. Seat / Massage Mechanism Defect (Ongoing for Months) A malfunction in the seat massage system has created a large, hard protrusion in the driver’s seat. This defect has resulted in significant back pain, requiring both urgent care and follow-up medical evaluation. I have now been diagnosed with sciatica, which my physician has indicated is likely related to prolonged pressure and improper spinal support caused by the seat malfunct...

Vehicle shuts off and puts itself in park at intersections while pulling across traffic. Multiple warning lights. 4x4 faults, power steering faults, auto start/stop faults etc. happened once just after I let off the brakes to start moving and lost power brakes

On October 20, 2025, at approximately 2:00 PM, while driving on the highway to pick up my children from school, the driver-side back cushion (airbag/cushion system) in my seat unexpectedly deployed or inflated with significant force, striking my back. The impact was strong enough to leave a visible mark, which I have documented with photographs. As a result, I experienced immediate back pain and was at serious risk of losing control of the vehicle due to the sudden and forceful nature of the incident. I immediately contacted my doctor’s office following the incident. My physician confirmed that the injury was consistent with trauma caused by the seat mechanism. I then contacted the dealership where I purchased the vehicle. I was instructed to drop off the vehicle and leave the keys in an envelope. On the morning of October 21, 2025, I received a text message from the dealership indicating an initial estimate of $117.65. I called the dealership to request a written report of their fi...

At engine idle with vehicle parked or driving in heavy traffic, exhaust fumes are entering the passenger compartment. I am not aware of any apparent exhaust leak. The fumes seem to be entering by way of the fresh air intake. I have confirmed CO readings with 2 different detection devices. If the vehicle is moving the readings have been 3-96 ppm. If the vehicle remains stopped with engine running, readings have been +100 ppm. This is a life safety concern. My local dealer had a service appointment over 1 week out 10/22/25. I asked Stellantis to escalate the case and have a reference number. # 94485584 I have lost the use of my vehicle and have not received a closer service appointment.

AEB system engaged emergency braking for no apparent reason when traveling at >35mph on a busy road with the flow of traffic. My face actually hit the steering wheel and a car traveling behind me barely stopped in time to avoid rear ending me. The AEB system has repeatedly displayed warning lights in the dash previously. For each occurrence, the vehicle was serviced at the dealership and reassurances were provided each time that the underlying issue was remedied with reprogramming and/or replacement of electrical control modules, however the recurrent nature of the issue (and many other issues surrounding the electrical system in my Grand Wagoneer) doesn't instill confidence in the "fix" they're providing. At this point in time, I don't feel safe driving my Grand Wagoneer, as I don't know when the vehicle will involuntarily slam on the brakes in traffic and cause an accident.