See also:

Overview
The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck capability combined with greater off-road versatility. It is highlighted by a bold exterior design, enhanced all-terrain ...

Dome Lamps
The dome lamps are located in the overhead console. They come on when any door is opened and turn off after all the doors are closed. Turn the instrument panel brightness knob located below the dome ...

Steering Wheel Controls
Some audio steering wheel controls can be adjusted at the steering wheel. : Press to interact with the available Bluetooth or OnStar systems. : Press to silence the vehicle speakers only. Pre ...