See also:

Storing Name Tags
The system can store up to thirty 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 ...

OnStar Personal Identification Number (PIN)
A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advi ...

Adjusting the Volume
Turn the VOL/ knob to adjust the volume of the infotainment system after the volume level has been set on the portable audio device. ...