*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Service brakes
ABS/Forward Collision/Traction Control/4WD/Cruise Control warning lights on. Braking is inconsistent. Sometimes hard to brake, sometimes brake pedal is real spongy and will go almost to floor.
Sep 11, 2026Power train
I am writing to formally follow up regarding complaint/case number 97989810 through Dodge and to request that this matter be elevated for a complete technical review concerning my 2021 Ram 2500 6.7L Cummins, VIN [XXX]. Time - Line PRIOR FACTORY-WARRANTY REPAIR The XXX factory-warranty repair is an important part of this vehicle's mechanical history. That repair involved the timing-cover/timing-gear-case area and front crankshaft seal. As part of that repair, the harmonic balancer/vibration damper was removed and reinstalled. Approximately 26,000 miles later, the vehicle experienced a failure involving the vibration damper and its associated mounting bolts. +++ Vehicle receipt will be…
Aug 13, 2026Power train
There is a known issue with the Ram Power Wagon locking differential system where the electronic locking differential wiring harness will fault one of three ways. The first being that the wiring harness is two short so when the rear axle articulates there isn't enough slack therefore causing the plug in the diff housing to fail. The second is that sensor inside the housing faults due to gear oil build up on the sensor. Finally the third if the locker wiring inside the housing wears out causes the locker to fault. Any of these three issues causes a "Service Axle Locker System" and prevents the front and rear lockers to be used indefinitely. This can cause the truck to become stuck during off…
Oct 24, 2025Engine and engine cooling
The contact owns a 2021 Ram ProMaster 2500. The contact received notifications of NHTSA Campaign Numbers: 25V552000 (Back Over Prevention) and 25V720000 (Engine and Engine Cooling); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was taken to the dealer, and the contact was informed that the repair might take 2 or 3 days to be completed. The dealer was only able to pay for a rental vehicle for two days. The contact stated that 5 days later, the dealer was still waiting on parts from the manufacturer to repair the vehicle. The vehicle was not repaired. The…
Aug 26, 2025Back over prevention
The contact owns a 2021 Ram Promaster 2500. The contact stated that while the vehicle was in reverse(R), the rear-view camera displayed a blank screen. The contact received notification of NHTSA Campaign Number: 25V552000 (Back Over Prevention) and associated the failure with the recall. The local dealer was contacted; however, the part to do the recall repair was not yet available. The contact stated that the dealer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 34,000.
Jul 1, 2024 · 34,000 milesService brakes
This problem first occurred on a state highway in [XXX] in 2023 and again in 2026 (this incident.) While driving south on XXX, there was an undulation/slight bump in the interstate while in a mild right hand curve. My vehicles brakes engaged without my input and slowed me down from 70mph to 35mph with traffic behind me. My gas accelerator and brake pedal were unresponsive from user input. At no point was my vehicle out of control to trigger such aggressive braking from my ESC, ERM, or ABS. The concern here is that thankfully this was on dry roads and traffic was far enough behind me to avoid a collision. My concern is this happening in winter weather/icy/wet roads, or with significant…
Jul 19, 2026Structure › Body
There was a tailgate recall for the tailgate falling down potentially spilling cargo onto the road. The dealership Autonation Dodge in [XXX] tried fixing the recall multiple times but the tailgate kept falling down after they tried to fix it 2 or 3 times. Now they're trying to make me sign a service fee authorization which I don't agree with because either the recall isn't fixed, or there are other issues that can cause the tailgate to fall down which should be included in this recall because they can potentially cause the same dangerous situation which caused the recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Feb 13, 2026Power train
The 68RFE automatic transmission in this 2021 Ram 2500 6.7L Cummins fails to engage reverse when the transmission reaches operating temperature. When the gear selector is placed in reverse and the accelerator is applied, the engine revs but the truck does not move. The defect is intermittent and temperature-dependent, which means it cannot be predicted or avoided by the driver. The vehicle is used to tow an enclosed cargo trailer weighing approximately 7,000 pounds.The safety risk: inability to engage reverse on demand creates a hazard in any situation requiring reverse motion, including backing away from a stopped vehicle, reversing out of a fuel station, backing a loaded trailer at a…
Apr 28, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
