Table 1 shows two common power train related problems of the 2023 GMC Sierra 2500. The number one most common problem is related to the power train (18 problems). The second most common problem is related to the automatic transmission control module (one problem).
| Problem Category | Number of Problems |
|---|---|
| Power Train problems | |
| Automatic Transmission Control Module problems |
Driving at approximately 30-35mph merging in traffic, the transmission shuttered and went into reduced power mode. Ecm reported a 747 code and valve body failure. Read details...
On xxx, I was towing my camper to copper center, alaska from palmer, alaska when my truck experienced a full transmission shut down which put the truck into "reduced power mode". We descending down the road right next to victory bible camp (64741 victory rd, sutton-alpine, ak 99674) when Read details...