2021 Ram 2500 Engine cooling Problems
- Complaints
- 2about this part
- Share
- 2%of 108 total for the year
- Median mileage
- 37,510miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2021 Ram 2500, 2% of the 108 complaints for this model year. Where a mileage was given, the median is 37,510 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2021 Ram 2500. The contact stated that while driving at various speeds, on several occasions, the vehicle lost motive power. The vehicle was taken to a dealer where it was diagnosed that the ECM needed to be updated. The ECM was updated but the failure persisted. The manufacturer was notified of the failure. The failure mileage was 37,510.”
NHTSA complaint #11578857, filed 2024-03, 37,510 miles“The contact owns a 2021 Ram ProMaster 2500. The contact received notifications of NHTSA Campaign Numbers: 25V552000 (Back Over Prevention) and 25V720000 (Engine and Engine Cooling); however, the parts to do the recall repairs were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was taken to the dealer, and the contact was informed that the repair might take 2 or 3 days to be completed. The dealer was only able to pay for a rental vehicle for two days. …”
NHTSA complaint #11753967, filed 2026-07Related service bulletins
- 10248594Sep 12, 2023Emissions Recall 06A - Vehicle Emission Control Information Label
- 10244433Sep 12, 2023Emissions Recall 06A - Vehicle Emission Control Information Label
- 10243261Aug 18, 2023Diesel Particulate Filter (DPF) - X97 Warranty Extension Installation of Particulate Matter (PM) sensor.
- 10243212Aug 1, 2023Emission Recall Y43 - Particulate Matter Sensor (Date on document incorrectly states "July 2023")
- 10242765Jul 26, 2023Squeak, Chirp, Or Tick Noise From The Serpentine Belt Area. Additional Diagnostics.
- 10242795Jul 12, 20236.7L New Oil Usage Information Incorrect oil used. This bulletin provides information regarding the correct oil grade to use on the 6.7L Cummins used in the 2023 to 2013 HD…
- 10241121Jun 24, 2023Clicking Noise While In 4wd Ratcheting, Click, or Clicking noise in 4WD while turning. This bulletin involves replacing the front driveshaft.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 2 | 3% |
| 2023 | 1 | 2% |
| 2022 | 5 | 3% |
| 2021 | 2 | 2% |
| 2020 | 1 | 1% |
| 2019 | 2 | 1% |
| 2018 | 5 | 0% |
| 2017 | 9 | 1% |
| 2016 | 7 | 3% |
| 2015 | 2 | 1% |
| 2014 | 2 | 1% |
| 2013 | 5 | 3% |
Other parts of the 2021 Ram 2500
35 complaintsEngine
26 complaintsTransmission and drivetrain
25 complaintsBody and structure
12 complaintsFuel system
11 complaintsBrakes
10 complaintsOther or unknown
8 complaintsSteering
5 complaintsAir bags
4 complaintsSeat belts
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsBack-over prevention (rear camera)
2 complaints
← All problems reported for the 2021 Ram 2500
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology