Instrument Panel Illumination Control

(Instrument Panel Brightness): This feature controls the brightness of the instrument panel lights and is located next to the exterior lamps control.
Push the knob to extend out and then it can be turned.
Turn the knob clockwise or counterclockwise to brighten or dim the instrument panel lights. Turning the knob to the farthest clockwise position turns on the dome lamps.
See also:
Battery
The battery supplies power to start the engine and operate any additional electrical accessories.
• To avoid break-down or failure to start the vehicle, maintain a battery with full cranking power. ...
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 ...
Airbag System Messages
SERVICE AIRBAG
This message displays if there is a problem with the airbag system. Take the
vehicle to your dealer for service. ...





