2021 Ram 2500 problems and complaints
Owners have filed 108 complaints with NHTSA about the 2021 Ram 2500. The most-reported areas: Electrical System (35), Engine (26), Power Train (25).
Key takeaways
- 108 owner complaints on file with NHTSA.
- 6 involve a crash, 8 a fire, 2 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Electrical System | 35 | 32% |
| Engine | 26 | 24% |
| Power Train | 25 | 23% |
| Structure | 12 | 11% |
| Service Brakes | 11 | 10% |
| Unknown Or Other | 8 | 7% |
| Fuel/Propulsion System | 8 | 7% |
| Steering | 5 | 5% |
| Seat Belts | 4 | 4% |
| Air Bags | 4 | 4% |
| Visibility/Wiper | 4 | 4% |
| Fuel System | 3 | 3% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Ram 2500 Mega PU/EC 4WD | Not rated | Not rated | Not rated | 3/5 |
| 2021 Ram 2500 Crew PU/CC 4WD | 4/5 | 4/5 | 5/5 | 3/5 |
| 2021 Ram 2500 Regular PU/RC 4WD | Not rated | Not rated | Not rated | 3/5 |
| 2021 Ram 2500 Crew PU/CC 2WD | 4/5 | 4/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Service Brakes - filed 2026-09-24
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.
Power Train,unknown Or Other,engine - filed 2026-09-10
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 t...
Power Train - filed 2026-09-07
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 housin...
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More for the 2021 Ram 2500
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.