2021 JEEP GRAND CHEROKEE Forward Collision Avoidance Warnings Problems

I was driving north on I64, and a car in front of me suddenly stopped. Cruise control was on, but when i applied the brake, my car did not stopped, and cruise control speed up, before decreasing speed. Instead of turning off, and allowing the car to slow down. I had to swerve, causing to go off on the side of the highway, and held my foot on the brake for almost a mile, along the side of the highway, before the car came to a stop

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

For my 2021 Jeep Grand Cherokee, the Antilock braking system, Hydraulic control unit has failed. It is currently being repaired by the dealership, and I will request the old part so that it is available for inspection. The failure of the ABS control unit, disabled the electronic stability control, the forward collision warning system and the cruise control - and the issue appears to be directly equivalent to the current Stellantis recall for Ram 1500's of a similar year. The dealer was able to reproduce the error - and was inspected at a Jeep dealership.

Frequently all lights go on while driving check engine goes on here and there on the highway. Loud noise when you start the car and continues for about 2 min after the car is turned off as well.. All lights went on and was unable To move the vehicle in the middle of a street. I have taken the vehicle in several times to 2 different dealers and I am told there’s nothing wrong with it. It’s a danger to my family and I for the car to continue to do these things as the car is unable to be moved..

UNKNOWN, reared ended an 18 wheeler and the findings do not show that forward collision or steering operated to prevent the accident.

On many occasions, warning lights come on for no reason. The dealer has "updated" software, but to no avail.. Collision warning, stop/start error, throttle body error and more. On the last event we were driving uphill, approx 25 mph, nobody in front of us, and the brakes slammed on with multiple errors showing.. the car then lurched forward with active breaking, stop start error, throttle body sensor all showing up and going away. This happened 4 times on the evening of Sep 15th. The errors and random and intermittent.. They replaced a "secondary" battery at one point, and that did nothing. They told us we needed to drive it for over 100 miles, to charge the battery, but it did not fix the stop/start or any other error. Now it is in the Cerritos dodge dealer and we have a formal complaint filed with Chrystler.. The dealer states they can't...

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...

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.