See also:

Compass
The vehicle may have a compass display in the Driver Information Center (DIC). See Compass for more information. ...

OnStar®
OnStar® uses several innovative technologies and live advisors to provide a wide range of safety, security, navigation, diagnostics, and calling services. ...

Window Lockout
(Window Lockout): The rear window lockout button is located on the driver’s door armrest near the window switches. Press the right side of this button to disable the rear window controls. ...