Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard.
If the light next to the OnStar buttons is red, the system may not be functioning properly. Push 
and request a vehicle diagnostic check. If the light appears clear (no light appears), your OnStar subscription has expired and all services have been deactivated.
Push to confirm that the OnStar equipment is active.
See also:
Sunroof
If your vehicle has a power
sunroof, the switches are
located on the headliner.
To express-open the sunroof press the rear of the driver’s
side switch to the second detent position, and rel ...
Control Buttons (Radio with CD and Touchscreen)
A track number displays at the beginning of each track. Song, Artist, and Album
information displays when available.
The buttons used to control the CD player are:
SRCE (Source): Press to select t ...
Parking Brake
The vehicle has an Electric Parking Brake (EPB). The switch for the EPB is in
the center console. The EPB can always be activated, even if the ignition is off.
To avoid draining the battery, do ...