See also:

Instrument Panel Illumination Control
This feature controls the brightness of the instrument panel controls and infotainment display screen. The thumbwheel is located to the left of the steering column on the instrument panel. (In ...

Volume Control
VOL/ (Volume/Power): Turn to adjust the volume. (Phone/Mute): For vehicles with OnStar®, press and hold to mute the infotainment system. Press and hold again, or turn the VOL/ knob t ...

OnStar®
For vehicles with an active OnStar subscription, OnStar uses several innovative technologies and live Advisors to provide a wide range of safety, security, navigation, diagnostics, and calling servi ...