Table 1 shows three common power train related problems of the 2015 GMC Sierra. The number one most common problem is related to the power train (ten problems). The second most common problem is related to the transmission shudder (one problem).
| Problem Category | Number of Problems |
|---|---|
| Power Train problems | |
| Transmission Shudder problems | |
| Transmission Failure problems |
The contact owns a 2015 GMC Sierra 1500 denali. The contact stated that while shifting the vehicle from park(p) to drive(d), the vehicle hesitated and then jerked into gear. The contact stated that the entire vehicle was shaking when it jerked into gear. Read details...
The contact owns a 2015 GMC Sierra. The contact stated that while driving at various speeds, the transmission vibrated causing a hesitation when the gears shifted. The contact mentioned that the failure was most severe while driving at speeds between 40-50 mph. Read details...
2015 GMC Sierra 6-speed automatic transmission failure @ 1800 miles. As I was decelerating from approximately 30 mph to make a turn into a road the transmission downshifted as expected to low gear. As I accelerated the transmission shifted to 2nd normally. Read details...