OnStar

See also:

Checking Engine Oil
It is a good idea to check the engine oil level at each fuel fill. In order to get an accurate reading, the vehicle must be on level ground. The engine oil dipstick handle is a yellow loop. ...

Display Settings
Press the Config button on the Home Page or the CONFIG button on the faceplate, then select Display Settings from the list. The following options may display: Dimming Mode: Press to change t ...

Center Console Storage
If the vehicle has a full floor console it has two storage areas. Lift the left lever located in the front of the armrest lid to access the upper storage tray. Lift the right lever to access the ...