2021 Jeep Compass: Engine complaints
Owner-reported issue (NHTSA complaints, not a recall)
Symptoms
NHTSA has 21 owner complaints for the 2021 Jeep Compass that list the engine component. Complaints are individual owner reports, not verified defects.
Examples:
- NHTSA complaint ODI #11762492 (filed 09/06/2026): “I am filing a safety complaint regarding my 2021 jeep compass limited due to repeated coolant loss, overheating/high-temperature warnings, and eventual engine failure. the vehicle began losing coolant and required frequent refilling. the problem progressively worsened until coolant would immediatel…”
- NHTSA complaint ODI #11759991 (filed 08/27/2026): “To whom it may concern: i am writing to formally submit a complaint regarding my 2021 jeep compass, particularly concerning recurring mechanical, electrical, and safety-related problems that have created serious concerns about the vehicle's reliability and safe operation. the most concerning issue…”
- NHTSA complaint ODI #11738824 (filed 05/19/2026): “The engine will shut off completely while traveling a a normal rate of speed. the temperature gauge will malfunction and report high temperature (when there is none) and the engine will shut off. it cannot be restarted without putting the car in park and pressing the brake while in the midst of mo…”
Likely causes
These complaints do not establish a single root cause; read the examples above and get a diagnosis.
Fix, in plain English
No single fix is established by these reports. Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer about technical service bulletins (TSBs) or extended warranty coverage, then have the system diagnosed.
DIY difficulty: Pro
Internal engine work (lifters, oil consumption, fuel dilution diagnosis) requires engine teardown or dealer software/tests. (Our assessment.)
Cost
No sourced cost range for this issue. Get a written quote after diagnosis.
Typical parts (search links, no affiliate codes)
AutoZone · O'Reilly · Advance · RockAuto
Sources
Page last updated .