2025 RAM 3500

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.

On 12/15/2015 my 2025 RAM 3500 at 30180 miles had a Trailer communication problem with Running lights on trailer not working. It was sent to RAM dealership in Albany, OR. They diagnosed that the Integrated Trailer control module was at fault. It was replaced and passed working operation, On 12/30/25 Ram was connected to Trailer. The Trailer seemed to be fully operational and about 5 miles down the road the Running lights stoped working again. I had trailed tested and no electrical issues were found. Had 7 way trailer pin in Ram tested and showed 12V power but no out for Running lights. Schedule another appointment to go to Wilson Ram in Corvallis, OR. The ran another diagnostic test on it and found it was fully operational and they could not duplicate the issue I was having. As the Ram gets closer to warranty being expired and I use this Ram for business hauling a trailer that it’s a safety issue when Running lights don’t work. I feel that RAM needs to address this problem sooner than later. I will be getting my Ram back on 01/09/2026 and We’ll connect to Trailer once again and see if itheir is no issues this time. I feel a recall should be in place to resolve the problem with a new harness, brake controller and all modules for Trailer Tow system. As a consumer having down time due to having to go back for diagnostics all parts should be replaced if one part of the system has failed. Is it not only a safety issue it can impact business owners who Need their Vehicle to operate their business. Thank you for taking the time and I will submit follow up if these trailer issues continue.

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.

The contact owns a 2025 Ram 3500. The contact stated that the front passenger's side, rear passenger's side, and driver's side seat belt reminder (SBR) system was inoperable. There was no warning light illuminated. The vehicle was taken to the dealer, where a third-party engineer diagnosed the vehicle and determined that the vehicle was only designed with a front driver's seat belt reminder (SBR). The manufacturer later informed the contact that Ram engineers had confirmed that the vehicle was operating as designed. The vehicle was not repaired. The failure mileage was approximately 18.

Brand new truck (497 miles) while driving on freeway at 70 mph, truck kicked out of cruise control and threw traction control, adaptive cruise control, 4wd, check engine, and anti lock brakes disabled fault lights and codes. The vehicle will disable all these safety features for 30-50 miles, and then the faults will randomly disappear except for the check engine light. This has happened 10-12 times. This truck has had 4-5 “ram cares” case numbers, has been at the dealership for over a month combined. The faulty part supposedly is a right rear wheel speed sensor on the 12” dually axles. There is hundreds if not thousands of these trucks affected. Stellantis/ram says the sensor is has been updated, but is currently not built or for sale., there is a national backorder. We are being told to drive these trucks while ram comes up with a fix. These speed sensors affect systems that have been federally mandated since September of 2012 (anti lock brakes). They are putting customers and other drivers on the road in danger with the intermittent failure of the brakes and traction control in wet conditions.