2023 Jeep Wagoneer engine problems
48 owner complaints filed with NHTSA name the engine on the 2023 Jeep Wagoneer — 45% of all complaints for this model year.
What owners report
“Our vehicle was purchased in December of 2025. Aprox. One month after purchase the vehicle unexpectedly turns off while driving. Fails to start. Along with multiple other issues. Its has been in the shop over the course of that time more than four months and is in the shop current day 14sept2026…”
filed Sep 14, 2026
“Vehicle began to randomly shut off at low speed while moving, while stopped and also in park. Has not yet happened at high speeds. All occasions are at speeds of less than 5 mph, no MIL. Took to the dealership, diag of faulted aux battery. Battery replaced. Still very randomly will die in gear, at…”
filed Sep 6, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
PUMP, Auxiliary Coolant Before replacing the Auxiliary Coolant Pump, please perform the following steps: 1) Key ON/OFF and let the after-run pump run for at least 20 minutes before moving on to step #2. 2) Inspect the…
9100861 Rev 3 · Service Bulletin/Repair Instructions · issued Jul 28, 2026
Engine problems in other Wagoneer years
| Year | Reports | Share |
|---|---|---|
| 2024 Wagoneer | 28 | 56% |
| 2022 Wagoneer | 52 | 26% |
Other reported problem areas on the 2023 Jeep Wagoneer
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.