2021 Jeep Grand Cherokee engine problems
60 owner complaints filed with NHTSA name the engine on the 2021 Jeep Grand Cherokee — 15% of all complaints for this model year.
What owners report
“-Thermostat -car died in traffic -not that I know of -it was diagnosed by the dealer -no warning lights or lamps -not that I’m aware if”
filed May 14, 2026
“This submission is an update to NHTSA Complaint #11727024. The vehicle continues to experience recurring engine overheating and misfire conditions. These issues have been previously diagnosed and are consistent with known manufacturer Technical Service Bulletins (TSBs) related to this engine…”
filed Apr 2, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Exhaust gas recirculation (EGR) valve may stick open, resulting in an unexpected loss of…Campaign 22V284000 · Apr 28, 2022
Related service bulletins
THROTTLE BODY – NONE
112639 · Service Bulletin/Repair Instructions · issued Jun 30, 2026THROTTLE BODY – NONE
112640 · Service Bulletin/Repair Instructions · issued Jun 30, 2026
Engine problems in other Grand Cherokee years
| Year | Reports | Share |
|---|---|---|
| 2025 Grand Cherokee | 19 | 30% |
| 2024 Grand Cherokee | 101 | 43% |
| 2023 Grand Cherokee | 81 | 21% |
| 2022 Grand Cherokee | 50 | 20% |
| 2020 Grand Cherokee | 48 | 21% |
| 2019 Grand Cherokee | 61 | 17% |
| 2018 Grand Cherokee | 120 | 14% |
| 2017 Grand Cherokee | 101 | 28% |
| 2016 Grand Cherokee | 76 | 25% |
| 2015 Grand Cherokee | 199 | 15% |
| 2014 Grand Cherokee | 406 | 17% |
| 2013 Grand Cherokee | 105 | 13% |
Other reported problem areas on the 2021 Jeep Grand Cherokee
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.