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Engine coolingPart report

2021 Ram 1500 Engine cooling Problems

Complaints
4about this part
Share
1%of 683 total for the year
Median mileage
52,850miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the engine cooling of the 2021 Ram 1500, 1% of the 683 complaints for this model year. Where a mileage was given, the median is 52,850 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 1500. The contact stated there was rainwater leaking into the rear passenger’s side cabin of the vehicle. The vehicle was taken to the local dealer, who replaced the third brake light and applied sealant; however, the leak persisted. The contact was informed by the dealer that the leak failure may be caused by a faulty frame or window. No further information was available. …”

NHTSA complaint #11654707, filed 2025-04, 59,700 miles

“The contact owns a 2021 Ram 1500. The contact stated while driving at an undisclosed speed, there were abnormal sounds coming from the exhaust, the exhaust was leaking, and the contact discovered that there were cracks on the exhaust manifolds. No warning lights were illuminated. The vehicle was taken to a dealer where it was diagnosed that the exhaust manifolds and gasket needed to be replaced. The vehicle was repaired. The contact did research and was made aware of an unknown NHTSA Campaign Number however, the VIN was not included. …”

NHTSA complaint #11742065, filed 2026-06, 80,000 miles

“The contact owns a 2021 Ram 1500. The contact stated that while driving or making a turn, the vehicle stalled. The contact had to shift into neutral(N) or park(P) and restart the vehicle. Additionally, while driving, the parking brake engaged without warning. The contact had to manually release the parking brake. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 1,000.”

NHTSA complaint #11476962, filed 2022-08, 1,000 miles

“The contact owns a 2021 Ram 1500. The contact stated while driving 35 MPH, the contact heard a loud sound emanating from the exhaust of the vehicle, prompting the contact to pull over to the shoulder of the roadway. After a visual inspection of underneath, the vehicle, the contact observed that the exhaust had detached. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the exhaust bolts. The vehicle was repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 46,000.”

NHTSA complaint #11576864, filed 2024-03, 46,000 miles

Engine cooling: other model years

YearComplaintsShare of year
202562%
202310%
202241%
202141%
2020102%
2019181%
2018467%
2017324%
2016634%
2015634%
2014503%
201381%

Other parts of the 2021 Ram 1500

Engine
276 complaints
Electrical system
198 complaints
Other or unknown
104 complaints
Transmission and drivetrain
99 complaints
Fuel system
96 complaints
Brakes
75 complaints
Forward collision avoidance
52 complaints
Steering
50 complaints
Body and structure
33 complaints
Vehicle speed control
30 complaints
Air bags
27 complaints
Visibility (wipers, defrost, mirrors)
27 complaints

← All problems reported for the 2021 Ram 1500

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