Courtesy Lamps

The courtesy lamps automatically come on when a door is opened.

The lamps can also be turned on manually by fully turning the instrument panel brightness control clockwise.

The reading lamps, located on the headliner above the rearview mirror, can be turned on or off independently of the automatic courtesy lamps, when the doors are closed.

    See also:

    How the System Works
    The LDW camera sensor is on the windshield ahead of the rearview mirror. To turn LDW on and off, press the LANE DEPART control on the steering wheel. The control indicator will light when LDW is ...

    Remote Keyless Entry (RKE) System
    The Remote Keyless Entry (RKE) transmitter will work up to 60m(195 ft) away from the vehicle. Press this button to extend the key. The key can be used for the ignition and all locks. : Press ...

    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 ...