See also:

FM
FM signals only reach about 16 to 65 km (10 to 40 mi). Although the radio has a built-in electronic circuit that automatically works to reduce interference, some static can occur, especially ...

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 o ...

RELEASE PARK BRAKE SWITCH
For vehicles with the electric parking brake, this message displays if the switch is pulled while the vehicle is moving. See the electric parking brake information under Parking Brake (Elect ...