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:
Radio (s)
Press to turn the system on and off. Turn to increase or decrease the volume.
RADIO/BAND: Press to choose between FM, AM, or XM™, if equipped.
Turn to select radio stations.
Press to seek the p ...
Safety Chains
Always attach chains between the vehicle and the
trailer. Cross the safety chains under the tongue of the
trailer to help prevent the tongue from contacting
the road if it becomes separated from ...
Unlock Doors
Press the customization button until UNLOCK
DOORS: IN PARK appears in the display.
To select your preference for automatic unlocking,
press the select button while UNLOCK DOORS:
IN PARK is dis ...