OnStar Services

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Fog Lamps
For vehicles with fog lamps, they can be used for better vision in foggy or misty conditions. The parking lamps and/or low-beam headlamps must be on for the fog lamps to work. The fog lamp butt ...

Manual Mode
Driver Shift Control (DSC) The vehicle has Driver Shift Control (DSC). DSC controls the vehicle's transmission and vehicle speed while driving down hill or towing a trailer by allowing you to ...

Ashtrays
The vehicle may have two removable ashtrays. One ashtray can be placed into the instrument panel storage compartment and the other into the center console rear compartment. To empty the ash ...