Vehicle recall 21V439000 · June 10, 2021
Ram 3500, 4500 and 1 more model
The engine calibration software may not warn about low oil volume.
Source: NHTSA data as of September 22, 2026. Last refreshed Sep 23, 2026, 2:43 AM UTC.
- Summary
- Chrysler (FCA US, LLC) is recalling certain 2019-2020 Ram 3500, 4500, and 5500 cab chassis vehicles equipped with a Cummins 6.7L High Output engine. The engine calibration software may not warn about low oil volume.
- Consequence
- Low oil can damage the engine, causing an oil leak or a punctured engine block, increasing the risk of a fire.
- Remedy
- Dealers will update the engine calibration software, free of charge. Owner notification letters were mailed June 25, 2021. Owners may contact FCA US LLC customer service at 1-800-853-1403. FCA US LLC's number for this recall is Y21.
- Notes
- Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Recall details
- NHTSA campaign
- 21V439000
- Reported to NHTSA
- June 10, 2021
- Filed by
- Chrysler (FCA US, LLC)
- Manufacturer campaign
- Y21
- Owner notification
- June 25, 2021
- Vehicles potentially affected
- 32,002
- Initiated by
- the manufacturer
- Components
- Engine and engine cooling › Engine › Oil/lubrication
Vehicles covered
As listed by NHTSA. A recall usually covers only some vehicles of each model and year, often a production date range.
Has your Ram been repaired?
Recalls here come from NHTSA’s records for the model and year. Not every vehicle of a model is included in every recall, and this site can’t see whether a repair has been done. Only a VIN lookup can tell you that.
NHTSA’s VIN search doesn’t show recalls that were already repaired, recalls more than 15 years old, or some small manufacturers’ recalls. Recall repairs are free.