See also:

Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 ...

Easy Exit Driver Seat
This feature can move the seat rearward to allow extra room to exit the vehicle. (Easy Exit Driver Seat): Press to recall the easy exit seat position. The vehicle must be in P (Park). If the eas ...

Wheel Alignment
Wheel alignment is critical for ensuring that the tires deliver optimal wear and performance. • Signs that the alignment may need to be adjusted include pulling, improper vehicle handling, or unusu ...