2021 RAM Promaster: common problems
The maker issued 195 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 195
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 45 |
| Powertrain | 0 | 0 | 32 |
| Engine | 0 | 0 | 28 |
| Engine and cooling | 0 | 0 | 28 |
| Equipment | 0 | 0 | 27 |
| Structure | 0 | 0 | 26 |
| Visibility | 0 | 0 | 15 |
| Suspension | 0 | 0 | 7 |
| Parking brake | 0 | 0 | 6 |
| Backover prevention | 0 | 0 | 5 |
| Fuel system | 0 | 0 | 5 |
| Exterior lighting | 0 | 0 | 3 |
| Service brakes | 0 | 0 | 3 |
| Air bags | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Outside Power Fold Rearview Mirror Noise Or Loose At Pivot
Mirror Contacts Door Window Glass In The Folded Position.
- Water Leak From Roof Area
- Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC)…
Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning…
- WATER PUMP
- D-25-17 Rev
A ALL Model Years 2019 - 2021 VF, DS, LA, LD and LX with a 3.6L Engine for Camshaft and/or Rocker Arm Replacements
- ID-25-14 Rev
A ALL Model Years 2019 - 2021 VF, DS, LA, LD and LX with a 3.6L Engine for Camshaft and/or Rocker Arm Replacements
- Water Pump & Chain Case Cover
- STARTER - ENGINE
- CAMERA – REAR VIEW
- Intermittent Uconnect Box Requires Service Message
TBM Setting Stored Or Pending DTCs B22A9, B1560, B1561, B1562
- D-23-24 Rev
B TERMINATION of 2019 - 2021 RAM Promaster (VF) 62TE Transmission Core Returns
- Engine Oil Leak
NHTSA lists 195 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2021 RAM Promaster?
There are no owner complaints in the NHTSA data for this year; the data comes from 195 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2021 RAM Promaster?
NHTSA lists 195 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2021 RAM Promaster from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2021 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.