2021 Ram 3500 problems and complaints
Owners have filed 62 complaints with NHTSA about the 2021 Ram 3500. The most-reported areas: Electrical System (17), Power Train (11), Engine (10).
Key takeaways
- 62 owner complaints on file with NHTSA.
- 0 involve a crash, 4 a fire, 0 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 17 | 27% |
| Power Train | 11 | 18% |
| Engine | 10 | 16% |
| Unknown Or Other | 9 | 15% |
| Wheels | 7 | 11% |
| Service Brakes | 6 | 10% |
| Structure | 5 | 8% |
| Fuel/Propulsion System | 4 | 6% |
| Exterior Lighting | 3 | 5% |
| Engine And Engine Cooling | 3 | 5% |
| Back Over Prevention | 3 | 5% |
| Tires | 3 | 5% |
One complaint can name several components, so shares add up to more than 100%.
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Electrical System,exterior Lighting - filed 2026-07-01
The contact owns a 2021 Ram 3500. The contact stated that while driving at various speeds, occasionally while activating the left turn signal to make a turn, the rear driver’s side turn signal failed to operate as intended. The message related to the brake light and turn signal was displayed on the instrument panel. In...
Engine And Engine Cooling,back Over Prevention - filed 2026-06-01
The contact owns a 2021 Ram 3500 . The contact received notification of NHTSA Campaign Numbers: 25V720000 (Engine and Engine Cooling) and 25V552000 (Back Over Prevention) however, the part to do the recall repair was not yet available. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer conf...
Fuel System, Diesel - filed 2026-05-06
The contact owns a 2021 RAM 3500. The contact stated that while driving at 40 mph, the vehicle stalled and could not be restarted. The vehicle was towed to a dealer, where it was diagnosed that the entire fuel system needed to be replaced due to the high-pressure fuel pump exploding after metal shavings were found thro...
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More for the 2021 Ram 3500
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.