Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Traction Control System (TCS)/StabiliTrak® Light
The Traction Control System (TCS)/StabiliTrak light comes on briefly
when the engine is started.
If the light does not come on, have
the vehicle serviced by the dealer.
If the system is workin ...
Driver Information Center (DIC)
The DIC display is located at the bottom of the
instrument panel cluster. It shows the status of many
vehicle systems and enables access to the
personalization menu.
The DIC buttons are locat ...
If the HUD Image Is Not Clear
• Is the HUD image too bright?
• Are the windshield and HUD
lens clean?
If the HUD image is not correct,
contact your dealer.
Keep in mind that the windshield is
part of the HUD system. ...