See also:

Compass
There is a compass display in the Driver Information Center (DIC). The compass receives its heading and other information from the Global Positioning System (GPS) antenna, StabiliTrak, and vehicle ...

Object Detection System Messages
PARK ASSIST OFF This message displays when the park assist system has been turned off or when there is a temporary condition causing the system to be disabled. See Ultrasonic Parking Assist ...

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 diagnos ...