Comfort and Convenience
Select the Comfort and Convenience menu and Chime Volume will be displayed.
Chime Volume
This allows the selection of the chime volume level.
Press the TUNE/MENU knob when Chime Volume is highlighted. Turn the knob to select
Normal or High. Press 
BACK to confirm
and go back to the last menu.
See also:
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push to try the
call again or try again after driving a
few miles into ...
Engine Drive Belt Routing
Engine Drive Belt Routing ...
Retrieve My Number
1. Push . System responds:
“OnStar ready.”.
2. Say “My Number.” System
responds: “Your OnStar
Hands-Free Calling number is.” ...