Warning problems of the 2024 Jeep Grand Cherokee

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.

On 11 October 2025, I was driving on the interstate when an error message appeared in the cluster "active lane management (alm) unavailable service required". The lane assistance turned off and could not be turned back on until vehicle was restarted. I called the dealership and requested an appointment. They stated that unless they could repeat the issue, an appointment would be useless. The alm error message disappeared on restart of the vehicle. On 02 January 2026, I started the vehicle when an error message appeared in the cluster "auto emergency break (aeb) limited functionality service required". The lane assistance turned off but could be turned back on. The vehicle visited the dealership on 13 February 2026 and the aeb error was repeated numerous times on start by dealership personnel. On Monday, 23 February 2026, vehicle was left at dealership for 10 days. They performed numerous software updates and returned vehicle to me on 05 March 2026. On 09 March 2026, aeb error message appeared in cluster. Took vehicle immediately to dealership and they refused to take it back in for service. They stated Jeep had no idea how to resolve and I had to wait on a solution. Aeb message happened again on 14 March 2026, 31 March 2026, 01 April 2026, 05 may 2026, 08 may 2026, 21 may 2026. On 05 may 2026, the aeb error and alm error appeared on the same day. I drove the vehicle to the dealership and they retrieved error code u045d. Dealership finally agreed to take vehicle back in for service on Monday, 25 may 2026 which is where is still sitting today, 05 Jun 2026. Initially, dealership stated Jeep had release another software update but then 24 hours later they stated they had ordered a new cluster. The new cluster was cancelled by Jeep so they ordered it again. Dealership stated they are waiting on a new cluster to arrive. I have no idea if aeb system works or not which to me is a major safety issue. Also, how can I trust this vehicle ever again!.

The active lane management (alm) system shuts itself off which the displays a warning on the the instrument panel to indicate it has been disabled. If you try to turn it back on manually, it gives a warning that the system is unavailable and service is required. It will not allow you to manually turn the alm system back on. I've taken it back to the dealership (9/7/25 repair ticket attached) where it was purchased but there were no computer codes shown to indicate what the problem was. They did an system update which did not fix the problem. Shutting off the engine and re-starting will clear this issue and you don't know when it may reappear (it could be the same day or possibly several weeks before it does it again). The service department has suggested I not shut off the engine but immediately bring it to them to see when this happens so they can run a scan for potential code(s) but they're an hour away and not always open when this occurs. My vehicle was purchased January, 2025 and has 10,300 miles on it now. I have a photo of the service required notification from September 4, 2025 showing mileage of 7,988 (attached). It had been doing this for approximately a month before I was able to get the photo. It continues to be an intermittent problem resulting in the loss of a safety feature of this vehicle.

Incident: frontal collision with a boulder at 30 mph. 1. Component/system failure & inspection availability the primary failure was the supplemental restraint system (srs); the driver’s frontal airbag failed to deploy during a high-energy frontal impact. Additionally, advanced driver assistance systems (adas)—specifically forward collision warning (fcw) and lane departure warning (ldw)—failed to provide alerts or initiate emergency braking prior to impact. 2. Safety risk the failure created a life-threatening risk. Striking a boulder at 30 mph caused substantial structural damage, requiring total replacement of the front-right and rear-right suspension assemblies. Despite the severity of the impact, the airbag remained dormant. The lack of fcw/ldw intervention meant zero mitigation was provided to prevent the roadway departure or collision, rendering primary safety features non-functional. 3. Confirmation of problem the fact that the airbags did not deploy was confirmed by independent inspection following the collision. Assessment of the vehicle damage shows that impact forces were clearly sufficient to trigger the srs, yet the system failed to activate. While adas failure is a dynamic event, the total absence of system logs or alerts during the crash sequence confirms the electronic malfunction. 4. Inspections performed the vehicle was inspected by an insurance adjuster and collision repair professionals. These inspections documented that the impact was severe enough to cause significant mechanical failure, yet no airbag deployment occurred. The manufacturer (stellantis/Jeep) has not yet performed a formal data download (edr) or physical inspection. 5. Warning lamps & prior symptoms no warning lamps, srs/airbag indicator lights, or "service" messages appeared prior to the failure. The diagnostic interface indicated all systems were "normal," pointing to a catastrophic "silent failure" of the sensors or the steering column control module.

The active lane management {alm} disengages and will not come back on unless you shut the car off. Took to dealer. Showed him picture of problem. Dealer could not get it to do it and said there were no fault codes showing. It has done this numerous times.

The vehicle has ongoing electrical and battery system problems that cause safety and driver-assistance systems to malfunction or shut off unexpectedly. The vehicle has repeatedly been found dead after short periods of non-use, requiring jump starts and battery replacement. These electrical issues appear to affect multiple vehicle systems simultaneously. While driving, advanced safety features such as lane departure warning, lane keep assist, adaptive cruise control, and proximity-based warning systems shut off, become unavailable, or behave inconsistently without warning. In some cases, warning messages appear and then clear on their own, while the affected safety systems remain disabled. At other times, the systems deactivate without any clear alert. The manufacturer and dealer have acknowledged battery drain and electrical instability, but instead of permanently repairing the underlying problem, certain features were disabled to reduce battery draw. These include proximity-related features and other driver alerts. Disabling safety and warning systems does not correct the defect and creates an unsafe condition where the driver cannot rely on the vehicle’s advertised safety features to function consistently. Because these systems disable themselves or are intentionally disabled due to unresolved electrical issues, the vehicle cannot be relied upon to provide continuous lane-keeping assistance, collision warnings, or adaptive cruise functions. The failures are unpredictable and occur during normal operation, creating a safety risk to occupants and other drivers.