2021 Jeep Wrangler Engine cooling Problems
- Complaints
- 4about this part
- Share
- 0%of 957 total for the year
- Median mileage
- 36,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2021 Jeep Wrangler, 0% of the 957 complaints for this model year. Where a mileage was given, the median is 36,000 miles. 1 a fire, according to the filers.
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 Jeep Wrangler. The contact stated that while operating the vehicle, the engine overheated, and the vehicle was driving sluggishly with the temperature gauge indicating that the engine was overheating. The vehicle was taken to an independent mechanic who determined that the coolant reservoir was cracked and was leaking coolant. The coolant reservoir was replaced, and the vehicle was repaired. The contact stated that the vehicle failed to immediately start due to battery failure. No further information was available. …”
NHTSA complaint #11758236, filed 2026-08, 56,700 miles“The contact owns a 2021 Jeep Wrangler. The contact stated that while driving at an undisclosed speed on the highway for 45 minutes, there was an abnormal odor of chimney fire, which continued while at the stop sign. The front passenger occupant noticed there was smoke from underneath the hood. While pulling over, the steering wheel locked up, and the occupants exited the vehicle. The engine warning light was illuminated. The damper had previously been replaced, but the vehicle was well-maintained. There were no reported injuries, air bag deployment, or crash. …”
NHTSA complaint #11704404, filed 2025-12, 52,000 miles“The contact owns a 2021 Jeep Wrangler. The contact stated that while operating the vehicle, the engine fan would suddenly turn on and the engine temperature gauge would rise with the message that the engine had overheated. The contact stated that during the failure the vehicle would suddenly decelerate to protect the engine. The vehicle was taken to the local dealer who indicated that the engine tubing was faulty. The vehicle was repaired but the failure persisted. The vehicle was taken back to the dealer who diagnosed that the water pump was faulty. …”
NHTSA complaint #11512767, filed 2023-03, 20,000 miles“The contact leased a 2021 Jeep Wrangler. The contact stated that while driving the engine, hot message was displayed. The contact looked underneath the hood but failed to determine the cause of the failure. The contact continued to drive but the vehicle lost power and she noticed smoke coming from the vehicle. The contact pulled over. While continuing to drive, the check engine warning light illuminated. The contact received notification of NHTSA Campaign Number: 22V865000 (Engine) however, the part to do the recall repair was not yet available. The local dealer was contacted. …”
NHTSA complaint #11504452, filed 2023-01, 12,000 milesEngine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 1% |
| 2023 | 2 | 1% |
| 2022 | 2 | 0% |
| 2021 | 4 | 0% |
| 2020 | 6 | 1% |
| 2019 | 5 | 1% |
| 2018 | 4 | 0% |
| 2017 | 1 | 0% |
| 2016 | 6 | 1% |
| 2015 | 4 | 1% |
| 2014 | 9 | 1% |
| 2013 | 4 | 1% |
| 2012 | 7 | 1% |
| 2011 | 6 | 1% |
| 2010 | 15 | 2% |
| 2009 | 5 | 1% |
| 2008 | 11 | 1% |
| 2007 | 28 | 5% |
| 2006 | 20 | 3% |
| 2005 | 22 | 3% |
| 2004 | 9 | 5% |
| 2003 | 6 | 6% |
| 2002 | 4 | 4% |
| 2001 | 21 | 12% |
| 2000 | 15 | 6% |
| 1999 | 50 | 23% |
| 1998 | 53 | 20% |
| 1997 | 109 | 27% |
| 1995 | 32 | 16% |
| 1994 | 25 | 17% |
| 1993 | 18 | 17% |
| 1992 | 7 | 9% |
| 1991 | 12 | 16% |
| 1990 | 7 | 9% |
| 1989 | 10 | 16% |
| 1988 | 7 | 14% |
| 1987 | 5 | 13% |
Other parts of the 2021 Jeep Wrangler
308 complaintsSteering
255 complaintsEngine
222 complaintsSuspension
181 complaintsTransmission and drivetrain
149 complaintsFuel system
142 complaintsOther or unknown
134 complaintsVehicle speed control
48 complaintsBrakes
27 complaintsWheels
23 complaintsVisibility (wipers, defrost, mirrors)
20 complaintsBody and structure
18 complaints
← All problems reported for the 2021 Jeep Wrangler
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