2023 Jeep Grand Cherokee L driver assistance problems

Filed Sep 5, 2026 · Brakes, Driver assistance · NE

2023 Jeep Grand Cherokee Summit unexpectedly applied the brakes while traveling approximately 78 mph with Adaptive Cruise Control engaged. There was no vehicle, object, or obstruction directly ahead. The forward collision/ACC warning activated immediately before the vehicle braked. At approximately the same time, the driver had touched the power lumbar button to disengage the lumbar. The lumbar had independently activated approximately 15–20 minutes earlier. Not sure if the 2 are related or if the is just coincidental?

Filed Jul 29, 2026 · Driver assistance, Seats · CA

I am experiencing two serious issues with my Jeep that have raised significant safety concerns. First, the front passenger seat's lumbar bladder repeatedly inflates on its own, making the seat extremely uncomfortable and causing severe back pain for anyone sitting in it. I have been informed that this is a known issue affecting many Jeeps of this model. The dealership previously deflated the lumbar bladder under warranty, but now the problem has returned. I was told I must pay for the repair out of pocket because the previous deflation supposedly voided or disqualified the warranty coverage. I do not believe I should be responsible for paying to fix a recurring defect that was previously addressed under warranty. Second, the Electronic Brake System (EBS) warning light comes on randomly, and when it does, my vehicle unexpectedly slows down or comes to a stop. This creates an extremely dangerous situation while driving. I have been fortunate to avoid a collision so far, but I am very concerned for my safety and the safety of my four children, who regularly ride in the vehicle with me. I am requesting that these issues be thoroughly investigated and repaired at no cost to me, as they involve recurring defects and serious safety risks. I also request a written explanation of why my warranty claim for the recurring seat defect was denied after the dealership's previous repair.

Filed Apr 20, 2026 · Brakes, Driver assistance · PA

There have been many components and issues that were and were attempted to be repaired. The vehicle is available for any inspection needed. I am afraid to drive the vehicle. My safety, my family’s safety and everyone around us front behind it doesn’t matter everyone is at risk. The vehicle for no reason at all just stopped. A very intense and.violent stop then the automatic braking and pedestrian warnings alerts came off. The vehicle did NOT come to a slow stop it felt like we hit into a brick wall. The dealership is never able to recreate or fix anything. Doubt they even try. They don’t put much effort into trying to recreate the issue.

Filed Mar 11, 2026 · Driver assistance · PA

Traveling at about 10-15 mph through a parking lot looking for a place to park. When 3 pedestrians crossed in front of my Jeep causing the Jeep to violently and abruptly stop. This violent and unexpected stop caused me to be thrown forward and then back which immediately caused a bruise and swelling in my chest and the left side of my neck and shoulder immediately hurting which got and continues to get progressively worse. The Jeep stopped instantly prohibiting me to react to the stop. The Jeep just stopped it didn’t slow down to stop it just stopped. It truly was a violent stop.

Filed Jan 21, 2026 · Driver assistance, Electrical · SC

The vehicle is currently inoperable and has been in the shop over 60 days. Intermittent power loss resulting in losing some safety components while driving such as power steering, adaptive breaking etc On 7 different occasions it has left my family stranded and even once completely locked out with all car seats and identification inside. We were unable to open the vehicle and it had to be towed. Thankfully all children were out of their car seats and outside of the vehicle. Purchase date : Feb 2025 13,000 miles 7 instances and has been to a dealership each time and they cannot figure it out. I am without a vehicle Videos and service papers are available but unable to upload the videos here. We have a case manager with Stellantis but getting nowhere. Urging others to file complaint as there are many online Vehicle is at Hoover Chrysler Dodge Jeep in Moncks Corner , South Carolina where is has been each time there was an issue. 854‑300‑3800

Filed Dec 8, 2025 · Driver assistance, Steering · TX

Vehicle was being driven when the service power steering message came on, the steering wheel became very stiff and hard to maneuver. A list of messages also came up on the display, that other functions of the vehicle where either disabled and/or needed to be serviced. after the vehicle was parked it was no longer able to be moved due to the power steering being inoperable.

Filed Nov 6, 2025 · Driver assistance, Electrical · MS

Bought vehicle and reviewing safety features the next day I realized the Forward Collision Warning light was on because it was malfunctioning and not just turned off. Same with the AEB light. Then Active Lane Management came on as did ACC. This is a concern since they are all safety features. Took it to dealership and they unhooked battery to try and make the windshield spray work. After that all safety warning lights came on. Dealer has had it for 2 weeks and still cant figure issue. Looking online it apprears this is a major safety that happens to a lot of these vehicles.

Filed Nov 4, 2025 · Driver assistance, Electrical · MA

Every time the vehicle starts, the driver dash display and radio display reset to a language I do not speak or understand (Italian). The paddle shifter is inoperative (with no option to enable), pedestrian emergency brake (peb) lamp or forward collision warning (fcw) lamp turns on with no way to disable, units of measurement changes to celsius, and numerous other settings reset as well. This is a dangerous situation. I don't understand the meaning of warning messages on the driver display because they are in Italian. It is difficult change the settings because the menus are in Italian. Plus, even if I change them, they all reset the next time the vehicle is started. I have taken it to the dealer numerous times. The dealer says there is nothing they can do and it can only be corrected with a software update that is not yet available.

Filed Oct 23, 2025 · Driver assistance, Electrical · OK · crash

Computer telling vehicle to do a sudden unintended acceleration. Forward collision warning system did not respond. Air bags didn’t deploy. No diagnostics have been done. No warning lamps illuminated on dash. Vehicle currently is at repair shop. While pulling into a parking space at low rate of speed, vehicles engine reved up and vehicle took off, braking system did not respond unable to stop vehicle, hit a parking lot light post .

Filed Sep 6, 2025 · Driver assistance · AZ

While making a left turn into a busy intersection with a green arrow signal, my car applied emergency braking, slamming all of us in the car forward, locked up tires, in the middle of the intersection, with a car right behind me! I have no idea how we were not rear ended! There was absolutely no reason for the braking and it was very scary, sending my daughter into tears. We were able to continue driving after a few seconds sitting in the intersection in shock. My head immediately hurt and wasn’t sure really what happened but the slam was intense like a collision. This is very scary, and dangerous! If this had happened on a hwy or at a faster speed could have caused a serious accident, which I am now reading has happened to other Jeep owners.