2021 RAM 1500 fuel/propulsion system problems
67 owner complaints filed with NHTSA name the fuel/propulsion system on the 2021 RAM 1500 — 10% of all complaints for this model year.
What owners report
“Recently this vehicle has triggered a check engine light. Upon further examination the code was related to an ignition #3. (CODES: P020C, PO1DO).”
filed Jul 28, 2026
“My 2021 RAM 1500 ecodiesel was subject to an NHTSA recall (23V-263). The recall included a replacement High pressure fuel pump (HPFP) due to a mechanical defect in the Bosch CP4.2 high-pressure fuel pump (HPFP) that causes the pump to fail prematurely and destroy itself internally. The HPFP was…”
filed Jun 2, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and drivability issues, the technician should disconnect the electrical connector at…
9100833 REV1 · Service Bulletin/Repair Instructions · issued Jul 6, 2026
Fuel/propulsion System problems in other 1500 years
| Year | Reports | Share |
|---|---|---|
| 2025 1500 | 17 | 6% |
| 2024 1500 | 6 | 9% |
| 2023 1500 | 15 | 8% |
| 2022 1500 | 53 | 9% |
| 2020 1500 | 44 | 7% |
| 2019 1500 | 79 | 5% |
| 2018 1500 | 79 | 12% |
| 2017 1500 | 87 | 10% |
| 2016 1500 | 188 | 12% |
| 2015 1500 | 164 | 11% |
| 2014 1500 | 211 | 12% |
| 2013 1500 | 35 | 3% |
Other reported problem areas on the 2021 RAM 1500
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.