Upon start up of the vehicle multiple warning codes appear; ABS turned off, 4 wheel drive temporarily disabled, Stability turned off, front and rear parking sensors disabled, Cruise Control disabled (in all forms). If vehicle is put into drive, or issue happens when the vehicle is already in drive; Unable to detect selected gear (switching from Drive/Reverse into Park) which results in not being able to turn the vehicle off.

Source: NHTSA complaint ODI #11763095 · view all complaints for this vehicle at nhtsa.gov

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. My truck has been to 2 dealerships for a total of 5 repair attempts so far.

Source: NHTSA complaint ODI #11759011 · view all complaints for this vehicle at nhtsa.gov

When driving the Anti lock brakes, cruise control, front and rear collision warning system, automatic emergency breaking system and lane keeping system are disabled. All of these alerts are displayed on the display cluster. All of these systems are disabled at the same time. I was told by the dealership that this is caused by a faulty Wheel Speed Sensor. The Wheel Speed Sensors have been replaced 3 times and have not fixed this problem. This has happened when towing a 14,000lbs trailer and the stability of the truck and load are compromised when breaking with a load.

Source: NHTSA complaint ODI #11759338 · view all complaints for this vehicle at nhtsa.gov

From the first day i bought the truck i noticed it had a very tight vibration coming from the rear. I thought its may just be the Firestone tires that were put on at the factory. I had to drive out of state to a small town in Nevada. After around 3500 miles the vibration became severe and felt like i had a tire seperating. I called the nearest tire centers/shops within about 100 miles of my location. None carried the firestone transforce tires. So i traveled to the Nearest shop around 60 miles and the certified tech and managed assisted me. The did an inspection and found the tire was scalloped and damaged. Due to the size difference in the tires the shop had available, i had to purchase 4 tires they had in stock. When the tech and manager roadforced the wheels and tires he discovered one of the wheels had a defect and was not actually round and had a slight “out of round” defect starting from the hub mount center bead that extended to the outer circumference causing the rim”wheel” to be out of round which is how the tire was severely damaged. An out of round wheel can cause tire failure and thus, a safety issue. To date as i write this report, i have tried twice with a dealership to try to resolve this issue under the warranty.

Source: NHTSA complaint ODI #11756605 · view all complaints for this vehicle at nhtsa.gov

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.

Source: NHTSA complaint ODI #11696152 · view all complaints for this vehicle at nhtsa.gov

There have been a couple of instances where the running boards haven’t deployed when the door has been opened. The most recent caused my 10yr old to FALL OUT IF THE TRUCK and get injured. I believe the combination that is causing it is to get in the truck, hit acc and get I’ll all windows down. Then turn off the acc and stay seated in the truck for some time. Then open the door from inside and they don’t deploy…

Source: NHTSA complaint ODI #11742431 · view all complaints for this vehicle at nhtsa.gov