OnStar Services
See also:
All-Wheel-Drive Vehicles
Dinghy and Dolly Towing
Notice: Towing an all-wheel-drive vehicle with all four wheels on the ground,
or even with only two of its wheels on the ground, will damage drivetrain components.
Do ...
Language — English/Metric
To change the language of the navigation screens or to change the navigation
screens from English or metric, see Driver Information Center (DIC)
for more information. ...
Auto Rear Defog
This will allow you to turn the auto rear defog on or off.
Press the MENU/SELECT knob when Auto Rear Defog is highlighted to open the
menu.
Turn the knob to highlight On or Off. Press the knob ...






