See also:

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...

Windshield and Wiper Blades
Clean the outside of the windshield with glass cleaner. Clean the rubber blades using a lint-free cloth or paper towel soaked with windshield washer fluid or a mild detergent. Wash the windshield tho ...

Setting the Time and Date (Radio with CD and Touchscreen)
To set the time: 1. Press the CONFIG button to enter the menu options. Turn the Menuknob to scroll through the available setup features. Press the SELECT knob or press the Time screen butto ...