2012 Jeep Grand Cherokee power train problems
102 owner complaints filed with NHTSA name the power train on the 2012 Jeep Grand Cherokee — 6% of all complaints for this model year.
What owners report
“My 2012 Jeep Grand Cherokee suddenly was stalling, and would not re-start, especially when turning the steering. AAA Tech diagnosed as High Diode Ripple Voltage in the Alternator, damaging the Battery. Needed to Replace both Alternator and Battery at a cost of $1068. Car was recalled under T36, and…”
filed Sep 10, 2026
“The contact owns a 2020 Ford Escape. The vehicle was repaired under NHTSA Campaign Number: 19V813000 (ELECTRICAL SYSTEM), but the failure worsened. The contact stated that after the vehicle was retrieved from the dealer, the check engine warning light illuminated. The contact stated that on a…”
filed Jan 16, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Plate - Planetary
101232 · Service Bulletin/Repair Instructions · issued Oct 30, 2024
Power Train problems in other Grand Cherokee years
| Year | Reports | Share |
|---|---|---|
| 2025 Grand Cherokee | 11 | 15% |
| 2024 Grand Cherokee | 28 | 12% |
| 2023 Grand Cherokee | 37 | 10% |
| 2022 Grand Cherokee | 36 | 14% |
| 2021 Grand Cherokee | 58 | 14% |
| 2020 Grand Cherokee | 39 | 16% |
| 2019 Grand Cherokee | 45 | 12% |
| 2018 Grand Cherokee | 75 | 9% |
| 2017 Grand Cherokee | 88 | 24% |
| 2016 Grand Cherokee | 78 | 25% |
| 2015 Grand Cherokee | 350 | 26% |
| 2014 Grand Cherokee | 474 | 20% |
Other reported problem areas on the 2012 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.