Table 1 shows two common power train related problems of the 2021 GMC Sierra 2500. The number one most common problem is related to the power train (nine problems). The second most common problem is related to the automatic transmission (one problem).
| Problem Category | Number of Problems |
|---|---|
| Power Train problems | |
| Automatic Transmission problems |
While driving on the highway at normal speed, my vehicle was operating completely normally with no warning lights, messages, or prior issues. Without any warning, the vehicle suddenly lost the ability to accelerate and felt as if it had been shifted into neutral. Read details...
The contact owns a 2021 GMC sierra. The contact stated that while driving at approximately 70 mph, the vehicle lost power. A " vehicle will not go above 50 mph " message appeared. The vehicle was taken to a dealer where it was sitting been for over four months after being diagnosed that Read details...