Table 1 shows three common power train related problems of the 2023 GMC Sierra 1500. The number one most common problem is related to the power train (84 problems). The second most common problem is related to the automatic transmission control module (three problems).
| Problem Category | Number of Problems |
|---|---|
| Power Train problems | |
| Automatic Transmission Control Module problems | |
| Automatic Transmission Fluid/lubricant Valves/valve Body problems |
I am reporting a serious safety concern involving a 2023 GMC Sierra 1500 denali, 6. 2l l87 v8, VIN [xxx]. This vehicle has now experienced two catastrophic powertrain failures at very low mileage. The first catastrophic engine failure occurred at approximately 23,696 miles. Read details...
The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving uphill, the vehicle unexpectedly lost motive power. There was no warning light illuminated. The vehicle failed to restart and was towed to the dealer, where it was diagnosed, and determined that the engine block had Read details...
The contact owns a 2023 GMC Sierra 1500. The contact stated that while driving on several occasions at speeds above 30 mph, the vehicle shuddered abnormally. There was no warning light illuminated during the failures. Read details...