Home · 2021 Ram Promaster 2500 · Complaints

What 4 owners told NHTSA about the 2021 Ram Promaster 2500

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (4)Crash / fire / injury (1)Transmission & drivetrain (2)Brakes (1)Seats (1)Visibility & wipers (1)

Newest first · 4 complaints

Nov 25, 2024Transmission & drivetrain

The contact owns a 2021 Ram Promaster 2500. The contact stated while driving 5 MPH uphill, the accelerator pedal was depressed; however, the vehicle failed to respond as intended. The contact stated that the vehicle started rolling backwards down the hill. The contact depressed the brake pedal and stopped the vehicle. No warning light was illuminated. The vehicle was towed to a dealer, then the vehicle was towed to another dealer and was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified on the failure but offered no assistance. The approximate failure mileage was 37,000.

NHTSA ODI 11627330

Sep 19, 2024Visibility & wipers

The contact owns a 2021 Ram Promaster 2500. The contact stated while driving on the interstate 70-75 MPH, on the inside lane overtaking other vehicles, the passenger’s side power mirror closed without driver input. The contact depressed the mirror button, but the mirror failed to respond. The contact pulled over and adjusted the mirror. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 20,000.

NHTSA ODI 11615429

Sep 12, 2024Transmission & drivetrain

The contact owns a 2021 Ram 2500. The contact received notification of NHTSA Campaign Number: 23V301000 (Power Train); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that after placing the vehicle in reverse it failed to respond. There were no warning lights illuminated. The vehicle had been driven to the dealer where it was confirmed that the transmission had failed; however, the part to do the recall repair was not available. The vehicle was not repaired. The manufacturer was made aware of the issue. The failure mileage was 67,000. Parts distribution disconnect.

NHTSA ODI 11614266

Mar 18, 2023SeatsBrakesCrash1 injury

The brakes on this Ram Promaster 2500 failed 100 percent with the pedal going to the floor and not returning upwards. This occurred without warning. The drivers' safety and the safety of cross traffic were at extreme risk. With no brakes, the vehicle crossed through a T intersection and came to an abrupt stop after crossing a ditch and then becoming lodged into a concrete drainage structure. The driver was severely injured and hospitalized. There were no warning lamps or unusual noise coming from the vehicle. The current status of the vehicle is unknown as it was a rental and upon requesting an inspection the vehicle was removed and no access was granted. It is also believed the poor quality driver's seat contributed to the spinal injury of the driver as the seat has no padding and no shock-absorbing capacity and very limited adjustments. Additionally, no airbags were deployed even though the driver's new I-phone 14 pro's SOS feature was enabled, and dialed 911 via satellite due to the abrupt nature of the stop. The contact stated that the correct failure mileage was approximately 38,700 miles.

NHTSA ODI 11512564

Working with the data? Download all 4 complaints as CSV · fetched from NHTSA July 14, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2021 Ram Promaster 2500 verdict →