2026 Jeep Grand Cherokee L engine problems
20 complaints about engine have been filed for the 2026 Jeep Grand Cherokee L, which is 43% of all its NHTSA complaints. It is the most reported problem area for this model year.
At a glance
- Complaints
- 20 43% of this year's complaints
- Crashes and fires
- 0 and 0
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
What the data shows
None of the engine complaints mention a crash, fire, injury or death.
What owners wrote
I purchased a brand new 2026 Jeep Grand Cherokee L Summit in April 2026. At approximately 1,205 miles, while traveling with my wife and [XXX] child in [XXX] , the vehicle suddenly developed a flashing check engine light and severe engine misfire condition. The engine began shaking violently, idling rough, and lost smooth drivability during operation. I scanned the vehicle using an OBD-II scanner and the PCM stored diagnostic trouble code P0302, indicating a cylinder #2 misfire.
Engine problems in other years
- 2027
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021