Volume Control
VOL/ 
(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 ...