2021 RAM 2500 power train problems
25 owner complaints filed with NHTSA name the power train on the 2021 RAM 2500 — 23% of all complaints for this model year.
What owners report
“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…”
filed Sep 10, 2026
“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…”
filed Sep 7, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- A build-up of pressure and heat inside the transmission may result in a transmission…Campaign 22V835000 · Nov 10, 2022
Power Train problems in other 2500 years
| Year | Reports | Share |
|---|---|---|
| 2026 2500 | 2 | 8% |
| 2025 2500 | 6 | 10% |
| 2024 2500 | 7 | 12% |
| 2023 2500 | 6 | 13% |
| 2022 2500 | 50 | 28% |
| 2020 2500 | 20 | 12% |
| 2019 2500 | 29 | 15% |
| 2018 2500 | 75 | 3% |
| 2017 2500 | 42 | 6% |
| 2016 2500 | 64 | 25% |
| 2015 2500 | 44 | 21% |
| 2014 2500 | 62 | 18% |
Other reported problem areas on the 2021 RAM 2500
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.