Auto Defog
This will allow you to turn the auto defog on or off. Only vehicles with the dual zone climate control will have this option.
Press SELECT when Auto Defog is
highlighted to open the menu. Turn
the Menu knob to highlight On or
Off. Press SELECT to confirm the
selection. Press 
BACK to move to
the last menu.
See also:
Vehicle Information Menu Items
(Vehicle Information): Press
this button to scroll
through the following menu items:
Oil Life
Press the vehicle information button until OIL LIFE
REMAINING displays. This display shows an est ...
Capacities and Specifications
The following approximate capacities are given in English and metric
conversions. See Recommended Fluids and
Lubricants for more information.
Engine Specifications
...
Retrieve My Number
1. Push . System responds:
“OnStar ready.”.
2. Say “My Number.” System
responds: “Your OnStar
Hands-Free Calling number is.” ...