Jeep Grand Cherokee collision warning problems

Filed Aug 27, 2026 · Brakes · CO

While driving my 2025 Jeep Grand Cherokee 4xe, the vehicle suddenly and unexpectedly applied the brakes very hard without any braking input from me. There was no apparent obstacle, vehicle, or other condition in front of me that would have required emergency braking. The braking was extremely abrupt and forceful. The sudden deceleration caused my seat belt to lock and restrain me hard enough to cause significant bruising and pain across my chest and reconstructed breasts. I recently underwent a double mastectomy with breast reconstruction, which made the impact and resulting injury particularly concerning. I brought the vehicle to an authorized Jeep dealership immediately following the incident because I am concerned that the vehicle's automatic emergency braking, forward collision warning system, or another braking or electronic system may have malfunctioned. The dealership has now had the vehicle for approximately one week. I have been advised that they have been unable to reproduce the incident or identify a problem that explains why the vehicle unexpectedly applied the brakes. I am extremely concerned about operating the vehicle because the cause of this unintended braking event has not been identified or repaired, and I have no assurance that it will not happen again. An unexpected emergency-braking event at highway speed, in traffic, or with another vehicle traveling closely behind could result in a serious collision or injury. This incident is particularly concerning to me given the other safety-related recalls and issues affecting my Jeep Grand Cherokee 4xe. I am submitting this complaint so the federal safety agency has a record of the unintended braking event and can determine whether similar incidents have been reported involving this vehicle or its braking/automatic emergency braking systems.

Filed Aug 1, 2026 · Driver assistance, Electrical · IN

My vehicle has multiple software and electrical issues that Jeep has been unable to diagnose or repair, and there is currently no recall addressing these problems. One of the most serious issues is that the vehicle will randomly switch the display language from English to Italian while I am driving. When this happens, the speedometer changes from miles per hour (MPH) to kilometers per hour (KPH), making it difficult to know my speed without pulling over and manually changing the language back to English. This creates an unnecessary safety concern. Additionally, the automatic door lock feature no longer functions properly. Although the dealership has repaired it in the past, the problem has returned. I also continue to receive a dashboard warning indicating that the Forward Collision Warning system is disabled, even though the feature is clearly enabled in the vehicle's settings. This inconsistency raises concerns about whether the safety system is functioning as intended. Another ongoing issue is that the vehicle randomly drains its battery. Both AutoZone and the dealership have tested the main battery and the auxiliary battery, and both have been found to be in normal working condition. Despite this, the battery drain continues to occur without explanation randomly. These recurring software and electrical problems have become unacceptable. Jeep has been unable to provide a permanent solution, and I believe the company should stand behind its product by acknowledging and resolving these issues.

Filed Jul 16, 2026 · Driver assistance · 3,000 miles · UT

The contact owns a 2025 Jeep Grand Cherokee. The contact stated that they had just purchased the vehicle brand new with the intent to utilize the Forward collision Warning plus avoidance system, The contact stated that on various occasions while driving the Forward collision Warning plus avoidance system will not function as proposed and no warning lights will illuminate. The vehicle was taken to a local dealer where the vehicle was diagnosed and the contact was advised that the front bumper sensors and Forward facing camera were faulty and needed to be replaced. The components recommended were replaced however the failure persisted. The manufacturer was notified of the failure. The failure mileage was 3,000.

Filed Jun 16, 2026 · Driver assistance, Electrical · AZ

I am reporting a safety concern involving my 2019 Jeep. The primary systems of concern include the Forward Collision Warning/Automatic Emergency Braking system, front camera/driver-assistance system, electrical/communication network, PCM/ECM communication system, transmission/driveability system, and related control modules or sensors. While driving, the Jeep’s forward collision system activated unexpectedly. The vehicle reacted as though it detected an imminent collision, even though there was no appropriate reason for the system to activate in that manner. This created a serious safety risk because unexpected activation of a collision-warning or braking-related system can cause sudden driver reaction, loss of control, or a rear-end collision with vehicles behind me. This incident did not occur in isolation. The vehicle had been brought to the selling/servicing dealership, Bill Luke Chrysler Jeep Dodge Ram in Phoenix, Arizona, numerous times before and after the safety incident. Issues began as early as approximately 3,523 miles. Between 2019 and 2025, the vehicle was taken to the dealership more than 19 times for recurring mechanical, electrical, diagnostic, and safety-related concerns. However, the vehicle was inspected multiple times by Bill Luke Chrysler, including several visits before the forward collision incident. My concern is that these may not be isolated failures, but part of a broader electrical, communication, sensor, or control-module issue affecting multiple systems.I also have concern that the vehicle may have had pre-sale service or diagnostic history that was not disclosed to me at the time of purchase. An internal dealership record appears to indicate that repair orders were purged from the dealership’s system on 10/29/2018, at approximately 8 miles and before I purchased it new in 2019. I was not provided an explanation of what repair orders were purged, why they were purged.

Filed Jun 14, 2026 · Driver assistance · CO · crash

On XXX, at approximately 8:45 AM in [XXX], my wife was driving our 2025 Jeep Grand Cherokee 4xe. She was stopped at a red traffic light and, when the light turned green, proceeded to make a normal left turn through the intersection. While approximately halfway through the intersection, the vehicle unexpectedly displayed a forward collision warning ("BRAKE!") and aggressively applied the Automatic Emergency Braking system. The weather was clear and sunny, and there was no apparent vehicle, pedestrian, obstacle, or other hazard in the Jeep's path that would have justified an emergency braking intervention. The unexpected braking caused the Jeep to decelerate abruptly in the middle of the intersection. As a result, a truck traveling behind the Jeep, at an estimated speed of approximately 10 mph, rear-ended the vehicle. A second vehicle then rear-ended the truck, resulting in a multi-vehicle collision. A police report was filed, and my wife was determined not to be at fault for the accident. We are submitting this report because we are concerned that the unexpected activation of the Automatic Emergency Braking system may represent a serious safety issue that could endanger vehicle occupants and other motorists and should be investigated. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 11, 2026 · Driver assistance · CO

On 5/11/26 at approximately 7:40pm, I was driving a leased 2024 Jeep Grand Cherokee in [XXX] , turning left at the busy intersection of [XXX] and [XXX] . I was in the outside lane of a double left-turn lane with a green left-turn arrow, while opposing traffic was also moving through the intersection in its own turn movement. In the center of the intersection, the vehicle suddenly activated Forward Collision Warning and then Auto Emergency Braking without warning, even though I was lawfully proceeding through the turn. The vehicle stopped abruptly and forcefully in the middle of the intersection, leaving my car stranded in active traffic. I braced for a rear-end collision, which surprisingly did not occur as there must not have been another car behind me After the sudden stop, I was unable to shift the vehicle back into Drive for several seconds. By the time I was able to move the car again, the light had turned red and other lanes of traffic were beginning to proceed. This created an immediate risk of a serious collision from cross traffic or vehicles approaching from behind. The force of the unexpected stop was strong enough to cause neck pain. By chance, no other vehicle struck my car, but this was a near-miss event with clear potential for severe injury or death. I no longer feel safe driving this vehicle. In addition, this vehicle has had multiple recalls and other issues, which heightens my concern that this may be part of a broader safety defect involving the Forward Collision Warning, Auto Emergency Braking, or related electronic control systems. I am requesting that the federal safety agency investigate whether the 2024 Jeep Grand Cherokee can falsely detect a collision risk during a lawful left turn and improperly engage automatic braking or otherwise prevent the driver from promptly returning the vehicle to Drive. Relevant documentation can be provided, including VIN, mileage, service records, recall history, and any dealer inspection results INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.

Filed May 7, 2026 · Driver assistance · ND

The Active Lane Management (ALM) and Auto Emergency Braking (AEB) systems on this 2024 Jeep Grand Cherokee 4xe fail repeatedly while the vehicle is in motion at highway speeds. The defect began at 384 miles. The ALM system will silently disable itself, and the AEB system forces the vehicle to display an 'AEB Limited Functionality Service Required' warning. Following six distinct repair attempts, the authorized servicing dealer (Eide Chrysler) stated in writing via text message on March 5, 2026, that this is a 'known issue' and that FCA engineering currently has 'no fix' available. The manufacturer has attempted to dismiss the ongoing hardware failure as a resolved hybrid battery software recall, but the collision avoidance systems remain actively defective. Because the steering overcorrection and sudden loss of emergency braking present an immediate crash risk, the vehicle is unsafe to operate.

Filed Apr 10, 2026 · Driver assistance, Engine · TN

The rear parking collision warning abruptly stopped working. The engine smells like it’s burning. The recall 68c has no remedy currently. My neighborhood is at risk due to this outstanding issue.

Filed Mar 22, 2026 · Driver assistance · SC

Subject: Forward Collision Warning Plus and Advanced Brake Assist Failure – 2025 Jeep Grand Cherokee Laredo I am reporting a safety defect involving the Full-Speed Forward Collision Warning Plus and Advanced Brake Assist systems on my 2025 Jeep Grand Cherokee Laredo. The vehicle does not provide forward collision warnings or apply assistive braking in situations where a collision is imminent. On multiple occasions, a vehicle in front of me slowed or stopped while turning into a driveway or parking lot. My Jeep provided no visual alert, no audible warning, and no braking assistance. I had to manually brake to avoid rear‑ending the other vehicles. I brought the vehicle to the dealership. During testing, the system could not be activated on my Jeep. We then tested another Jeep of the same model and year; its system also failed to activate until we were within approximately three feet of the vehicle ahead. My Jeep never activated at any distance. The dealership stated that because Adaptive Cruise Control slows the vehicle when active, the collision warning and brake assist systems must also be functioning. This explanation is inconsistent with how these systems are designed to operate, and it does not address the failure of the Forward Collision Warning Plus system to activate in real‑world or controlled conditions. This appears to be a systemic failure of the collision‑avoidance technology on this model, creating a significant risk of rear‑end collisions.

Filed Mar 14, 2026 · Driver assistance · IL

The Forward Collision Warning (FCW) and Automatic Emergency Braking (AEB) systems on my 2022 Jeep Grand Cherokee are consistently failing to operate as intended, creating a significant safety hazard Symptoms include: System Inactivity: The FCW fails to alert or provide braking assistance during clear, high-risk frontal collision scenarios. Persistent Warning Lights: The 'FCW OFF' indicator illuminates on the instrument cluster and cannot be cleared by toggling settings in the Uconnect 5 system. Software Defaults: Following Over-the-Air (OTA) updates, the FCW and Pedestrian Emergency Braking (PEB) systems default to 'OFF' and often remain disabled despite user attempts to re-engage them. Hardware Misalignment/Blinding: Frequent 'ACC/FCW Limited Functionality' messages occur even in clear weather with clean sensors, indicating a potential calibration or module communication failure. I am referencing XXX and Manufacturer Communication XXX regarding these specific software/hardware faults. Despite these known issues, the dealership Ziegler Chrisler Doodge Jeep Ram in Schaumburg, IL has been unable to provide a permanent resolution. This failure leaves the vehicle without critical, advertised safety protections during operation