See also:

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Audio System
When using the Bluetooth system, sound comes through the vehicle's front audio system speakers and overrides the audio system. Use the VOL/ knob during a call to change the volume level. Th ...

DIC Operation and Displays
The DIC comes on when the ignition is on. After a short delay the DIC will display the information that was last displayed before the engine was turned off. If a problem is detected, a warning m ...