See also:

Compass Calibration
Press and hold the on/off button to activate the compass calibration mode. CAL will be displayed in the compass window on the mirror. The compass can be calibrated by driving the vehicle in circ ...

Storing Name Tags
The system can store up to 30 phone numbers as name tags that are shared between the Bluetooth and OnStar systems. The system uses the following commands to store and retrieve phone numbers: ► ...

Engine Identification
The eighth character in the VIN is the engine code. This code identifies the vehicle’s engine, specifications, and replacement parts. See “Engine Specifications” under Capacities and Speci ...