Owner-reported complaints naming the driver-assistance system, filed with NHTSA
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Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2025 RAM 3500 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 10 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Shown in the owner’s own words, exactly as filed
3 times to date (10,000 miles/8 months) I have failing abs speed sensors. If I stop moving when all lights come on dash the truck is in operational. I cannot shift gears, put in park or turn engine off. Loose traction control, ads, 4wd, stabiltrac, speedometer. All assitive and braking functions. Code U1412. Dealer replaces speed sensors but problem returns.
While driving with a trailer after leaving a jobsite in [XXX] , the vehicle experienced a sudden electrical failure while in motion. The instrument cluster/speedometer screen went completely black and the vehicle lights stopped functioning properly while driving at night. During the incident, we lost the speedometer display and visibility from the vehicle lighting system, creating a serious safety hazard while towing a trailer on public roads. Because of the electrical failure, we were forced to pull off on the side of the road to avoid a potentially dangerous situation. After shutting the truck down and waiting approximately one hour, the vehicle was restarted and the systems eventually began functioning again. This vehicle is used regularly for commercial towing and jobsite operations. A sudden loss of instrument display, lighting systems, and electrical functionality while towing creates a major safety concern for both the occupants of the vehicle and surrounding traffic. The failure appeared intermittent because the vehicle resumed operation after sitting for a period of time. However, the incident involved complete loss of critical vehicle display and lighting systems while driving. The vehicle is available for inspection upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Multiple times at random the vehicle will display an alert on the dash that the 4X4 system, anti lock breaks, adaptive breaking as well as forward and rear collision sensors and cruise control are all disabled. This has happened 5 times now. I have taken the vehicle into the dealership and they stated that the rear Wheel Speed Sensors" were bad and replaced them. Since the wheel sensors have been replaced ( less than 200 miles ago) this system has triggered the same alert and conditions 2 more times. This is a very dangerous situation for a vehicle that is made for towing heavy trailers and loads.
The warning lights on the dashboard come on when driving. ABS, VSC, 4WD, automatic emergency braking etc. are all shut down when this happens. The lights may stay on for a few days or turn off at the next restart with only a check engine light remaining on. It has been back to two different the Ram dealer for repairs 4 times for this issue. Starting out on 04/25/2025 at 419 miles, the last time was 12/22/2025 at 3,677 miles. They have replaced several sensors and updated the computer several times, yet the problem still persists. It may be fine for several hundred miles or it may happen several times in one hundred miles. At this point the dealer doesn't seem to know what more to do.
The 2025 and 2026 dually 3500 Ram trucks with the 12" AAM rear axle are having issues with the rear wheel speed sensors (different sensor for each side). They apparently fail or are not able to properly communicate to the computer. When this happens, the following are disabled: -ABS -Auto Emergency Braking -4x4 -Electronic Stability Control -Cruise Sometimes, the engine won't shut off. The gauge cluster will state it can't detect which position the transmission is in. So, you cannot shift, and you can't shut the truck off, and you can't drive. You are stuck in place with a running engine. Despite Stellantis releasing a new revision of wheel speed sensors (AB revision), they have failed in less than 2,000 miles on my truck. Many, many dually owners are experiencing these failures. I've had this problem occur over half a dozen times. It has been to the dealership to be repaired 3 times so far. After the 2nd time at the dealership, the sensors only last less than 23 miles.
On January 14, 2026, while starting my 2025 RAM 3500 with approximately 4,000 miles on the vehicle, the digital instrument cluster completely failed to function. After the engine started and the vehicle was running, the dashboard continued to display “Press Brake and Press Button to Start,” as if the vehicle had not started. All gauges and indicators were inoperative, including the speedometer, tachometer, warning lights, and vehicle information displays. Although the vehicle could be driven and exterior turn signals were functioning, there was no indication on the instrument cluster. No speed, engine RPM, or warning alerts were visible to the driver. After driving the vehicle home and allowing it to sit for a period of time, the vehicle was restarted and the instrument cluster returned to normal operation, indicating an intermittent failure. Based on known issues reported with digital instrument cluster failures, this appears to be a potential electrical and/or software-related defect. In addition to the instrument cluster failure, the vehicle has experienced electrical issues related to trailer lighting. When towing a new trailer equipped with LED lights, the running lights would not function when connected to this truck, although the trailer lighting worked properly when connected to other vehicles. The trailer was taken to the manufacturer’s shop for a full inspection, which confirmed the trailer was functioning properly and identified the truck as the source of the issue. On January 12, 2026, during an oil change service, the trailer lighting issue was reported to the dealership. When the technician connected a diagnostic tester to the truck’s trailer wiring connection, portions of the connection began to smoke. The dealership determined there was a defect in the truck’s electrical system and ordered a replacement component. I have video documentation provided by the dealership technician showing the issue at the trailer light connection.
Bad wheel speed sensor which disables ABS, cruise control, and all the ADAS systems. Vehicle has been to dealer 5 times for this in less than 8 months. Stellantis takes over a month to replace the part. Vehicle also will not shut off and/or be able to move while this happens.
2025 ram 3500 dual rear wheel truck has intermittent anti lock brake failure . As well as traction control, forward collision warning/assist, lane departure, high beam headlights, and other safety systems. The dealership has tried to fix these issues 8 or more times, with no success. It is illegal for Ram and Stellantis to put customers back into vehicles with anti lock brake failures. In wet/slick/or hard braking situations, loss of anti lock brakes is dangerous to my family as well as other drivers on the roads. And that danger increases when towing a large trailer when the failure happens. The dealership and Stellantis/Ram know of these problems with 2025-26 dual rear wheel Ram pickups.
I have experienced two major issues. The dash cluster went blank. Not able to see any of the gauges. Vehicle ran, drove. Turned the truck on and off. Opening & closing the door to power off the truck. 15+/- minutes for the dash to return to normal. Supposedly an update to the program is pending. Second and major issue; while backing up, the truck came to a stop by itself, blocking an intersection. I was not able to place the truck in any gear. Warning light notified me that the truck was not in park. We were unable to push the truck out of the intersection. The dealer says when the "Wheel Speed Sensor" failed the truck is programed to be immobilized. I have recently returned from a trip to the Rockies pulling a 35 foot 5th wheel RV. I have traveled several mountain roads. One 12 mile stretch with a 8% grade. Had the wheel sensors failed on any of these roads the chance of and accident were great. Potentially deadly. This is a known issue. Ram has decided to use the newly redesigned parts for production of new vehicles. No parts are available or estimated ship date. My truck has been towed to Capitol Ram of Garner, NC and will sit until Ram decides to provide parts. Part numbers: 68646345AA Left & 68646344AA Right
Ton of warning lights can on like abs, traction control and some other sensors. When put in Drive the D flashed and try k would not move. Put back in park would not recognize it was in park and would not shut off. The only way to shut off the truck with disconnect both batteries and pull the fuse for the fuel pump.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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