The contact owns a 2021 Cadillac XT4. The contact stated while driving 40-45 MPH, the vehicle suddenly stopped, and was shifted into park but failed to restart. There were no warning lights illuminated. The vehicle was towed to the local dealer where it was diagnosed and determined that the fuel pump control module and battery needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 34,536.
Engine & cooling
2021 Cadillac XT4 Engine problems
Owners have filed 2 complaints about the 2021 Cadillac XT4's engine & cooling with NHTSA - 17% of all its complaints, most recently on May 1, 2025. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
- Complaints
- 2
- Recalls
- 0
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
Engine complaints
The contact owns a 2021 Cadillac XT4. The contact stated that while stopped at a traffic signal, the signal turned green; however, when the accelerator pedal was depressed, the vehicle hesitated before responding as needed. The contact stated that the vehicle lunged into motion. The contact stated that the failure was intermittent at first but became a recurring failure. The contact stated there was no warning light illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and...
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determined that the cam shaft and transmission needed to be rebuilt. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 45,000.
Cadillac XT4 engine complaints by year
XT4 engine problems, every yearSource: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data