2021 Jeep Grand Cherokee Driver Assist & ADAS Problems

My son’s car drifted to the right past the white line and he ended up hitting a hydrant and continued at least 100 ft before stopping. Our dash cam showed a slow smooth drift to the right without any lane assist being activated to pull the car back. All safety features were activated and turned on the day we bought the car for him. It was the main reason we chose this model. He is very lucky to be alive. After the impact, the car just barely missed a business sign, a telephone pole and a tree. The car was declared totaled. Unfortunately, the total amount the insurance is offering is about 4k short of what we still owe. Words cannot express how lucky we are that our son is okay, but we are very angry that the features we bought the car for, failed him.

Software update was pushed on or around 11/22/2024. After update front collision system warning light on dash. Doors fail to auto lock when driving off. Options to toggle front pedestrian breaking now missing that would turn off the light. Jeep Facebook groups show multiple people with same year having the same problem after software update FCA-MY24.U29.42-PROD

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance module was not working as needed. The contact stated that the warning light illuminated and remained illuminated without any vehicles being nearby. Additionally, the light remained illuminated and failed to deactivate. The vehicle was taken to the dealer where it was diagnosed with defective wiring and that the Forward Collision Avoidance module needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 17,000.

October 12,2023 yellow lights in mirror Came on a message came into dashboard I pulled into garage. October 13 and 14 yellow lights do not come on for a second when I start vechicle nor do they come on in reverse mode when Adjacent to vechicle etc a fault is detected it’s not working properly tge blind spot module and rear sensors

I was approaching the location where I was about to turn and began to slow down. Out of no where, the forward collision detection system was set off and automatic braking was applied, causing the SUV behind me to go right off the roadway to avoid a rear end collision. Traffic was extremely heavy at the time. The motorist caught up with me at the location I eventually turned into and accused me of slamming on brakes on purpose. I explained to them the malfunction that occured; however, they were still rightfully upset due to them having children in their vehicle, which caused panic. I let them know I would be reaching out to report the situation, as well as turning off the supposed safety feature until the issue could be rectified. This was a very dangerous situation and could have resulted in a major traffic collision, causing serious injury or death. I do have a dashcam video of the incident.

I have had TWO incidents where the automatic emergency brake has engaged. The first was in a parking lot at low speed with no cars or objects near the car. The car completely seized up and I had to get a tow truck to take it to the dealer. The second incident I had to slow to zero for a dog in the road and then after it moved and I accelerated the brake engaged and I had to pull out of the road way so I would not get hit from behind. After the car sat parked for 8 hours I was able to drive it to dealer with an engine light on. At dealer the light went off so they were not able to diagnose anything .

Forward collision warning system and auto emergency braking system non operative since vehicle was purchased from new. Have paper work from local dealership confirmation that systems are non operative but they can not fix and do not know why. Was told that this is an issue on all Jeep’s. Corporate has a case open but will not call me back and when I call them system states that I can leave a voicemail with my case worker but then hangs up with no options to speak to anyone.

The contact owns a 2021 Jeep Grand Cherokee. The contact stated that while his wife was driving approximately 30 MPH, the Forward Collision-Avoidance system erroneously activated, causing the vehicle to abruptly stop in the middle of the road. During the failure, no other vehicles or objects were nearby to cause the system to be activated. The vehicle was taken to the local dealer who was unable to duplicate the failure or identify the cause of the failure. No service was performed. The contact stated that the failure reoccurred. The manufacturer was not notified of the failure. The failure mileage was 6,000.

The contact owns a 2021 Jeep Grand Cherokee. The contact stated while she was stopped at traffic light, as she was taking her foot off the brake pedal to depress the accelerator pedal, the vehicle's automatic emergency braking system engaged and the vehicle came to a stop. The engine was running. The contact stated she was not aware of any warning light being illuminated. The contact had injured her right foot and was diagnosed with a torn Achilles tendon. The contact had taken the vehicle to a unknown local dealer, where it was had not been diagnosed or repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 700.

While traveling at approximately 60 mph, the vehicles automatic braking engaged while no vehicles, people, or other items were in the vicinity of the vehicle. On a separate occasion, while traveling at approximately 20 mph, turning into a gas station, the automatic break engaged in the middle of the road. There were no other vehicles, people, or other items in the vicinity of the vehicle.

Lane keeping assistance fails and disengages mid trips. The vehicle is then allowed to drift to other lanes without correct or alert.