2023 Jeep Grand Cherokee L

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?

We were accelerating from a stop light and reached about 50 mph when the brakes activated and large red letters saying “BRAKE” were displayed on the drivers dash screen and an alarm sounded. The vehicle slowed rapidly and suddenly. Fortunately we were around no other traffic so there was no collision. There were no impediments on the roadway which might have reasonably caused the brakes to activate.

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.

On [XXX], while driving my 2023 Jeep Grand Cherokee L on the [XXX] , at approximately 65 mph, a ring (like a washer) detached from the brake pedal. This caused the vehicle to suddenly lose braking capability. Right after I attempted to brake the vehicle on the highway, the ABS light, brake assistance light, braking distance automatic light, and traction control lights all illuminated on the dashboard, and the vehicle required immediate assistance. The brake pedal did not respond normally to pressure. I had to downshift rapidly to slow down and exit the freeway safely. Once in a safer area, I was finally able to stop the vehicle by applying a lot of pressure to the pedal. This dangerous failure put myself and other drivers at serious risk of an accident. Due to the severity of the issue, I immediately called a tow truck and had the vehicle taken to the authorized Jeep dealership in Tustin for repairs. I had previously experienced another major repair (rear axle joint binding) that took approximately 64 days when the vehicle had around 30,000 miles. The current incident occurred at approximately 52,000 miles. I reported this safety issue to Jeep Customer Service and received Reference Number [XXX]. This is a serious safety defect involving the brake system that could have caused a crash on the highway. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

On July 16, 2025, at approximately 6:10 PM, I was driving home on the highway at around 65 mph when I attempted to brake. The brake pedal went completely to the floor, and no braking occurred. At the same time, the following warning lights and messages suddenly appeared on the dashboard: - “Service Park Brake” - “Service ABS” - “Service Electronic Stability Control” - “Auto Hold Unavailable” - “4WD System Temporarily Unavailable” I was able to maneuver the vehicle into the emergency lane without colliding with other vehicles or causing a high-speed rear-end accident. The vehicle came to a gradual stop but would not restart afterward. This failure occurred without any prior warning and posed a serious risk to my safety and the safety of others on the road. I do not know how an accident was avoided, as the failure was sudden and could have resulted in a tragedy. The vehicle is a 2-year-old Jeep, with approximately 36,000 miles, and has been regularly serviced by Jeep, most recently about one month prior to the incident. After the incident, I had the vehicle inspected by a Jeep dealership, which confirmed the failure and identified a defective brake control module as the root cause. The component is available for inspection upon request.

My vehicle randomly throws on the parking brake while driving. I have almost been rearended because of it. In order to get the parking brake to release i have to shut off the vehicle and wait 30 seconds then when I restart it, it releases. I get a message on my dashboard when this happens that says Auto Emergency Braking (AEB) limited functionality service required. This has happened multiple times and the dealership has no clue how to fix the issue. This is a safety hazard to not only me, my unborn baby and my family, but also to others on the road because there is no warning before it sets the parking brake. I will list the most recent time this has occurred.