Volume Control

VOL/ clockwise or counterclockwise to (Volume/Power): Turn clockwise or counterclockwise to increase or decrease the volume.

    See also:

    Compass Messages
    CAL This message is displayed when the compass needs to be calibrated. See Compass. Three dashes will be displayed if the compass needs service. See your dealer for service. ...

    Add-on Electrical Equipment
    The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfer ...

    Storing and Deleting Phone Numbers
    The system can store up to 30 phone numbers as name tags in the Hands—Free Directory that is shared between the Bluetooth and OnStar systems. The following commands are used to delete and store ph ...