See also:

Automatic Operation, If Equipped
AUTO: Press the air delivery mode button until this setting is selected to control the inside temperature, air delivery, and fan speed. AUTO appears in the display when automatic operation is acti ...

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 ...

Reading Lamps
For vehicles with front reading lamps in the overhead console, press the button located next to the lamp to turn it on or off. The vehicle may also have reading lamps in other locations. The lamps ...