2021 Jeep Wrangler engine problems

215 owner complaints filed with NHTSA name the engine on the 2021 Jeep Wrangler — 23% of all complaints for this model year.

215

Engine complaints

23%

share of all complaints

28,000 mi

median reported incident mileage

3 / 10

crash / fire reports

What owners report

“After the safety recall 68C, the vehicle no longer operates as designed. In electric only mode, the gas engine engages, which is bad for the engine. This fails to give the engine time to prepare for short sudden use. When driving, the high voltage battery will lag or not produce power as it did…”
filed Sep 14, 2026
“When using electric mode, repeatedly and consistently, when I try to accelerate (for example to get onto a highway) despite having the acceleration fully depressed, the car does not accelerate. After some time, the gas powered engine will rev, the RPM will shoot up and then the car will start to…”
filed Aug 19, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

Turbocharger Kit Please note that many turbo components are serviceable separately and full turbo replacement may not be required. If the turbo is being inspected for: Noise/Rattle: Inspect heat shield fasteners for…
9100363 Rev 3 · Service Bulletin/Repair Instructions · issued Aug 26, 2026
CORE – HEATER
113271 · Service Bulletin/Repair Instructions · issued Jul 7, 2026
CORE – HEATER
113270 · Service Bulletin/Repair Instructions · issued Jul 7, 2026
THROTTLE BODY – NONE
112639 · Service Bulletin/Repair Instructions · issued Jun 30, 2026
THROTTLE BODY – NONE
112640 · Service Bulletin/Repair Instructions · issued Jun 30, 2026