OnStar Services

See also:

Park Brake and P (Park) Mechanism Check
WARNING When you are doing this check, the vehicle could begin to move. You or others could be injured and property could be damaged. Make sure there is room in front of the vehicle in case it b ...

Recommended Fluids and Lubricants
Usage Fluid/Lubrican Engine Oil The engine requires engine oil approved to the dexos specification. Oils meeting this specification can be identified with the dexos cer ...

Starting the Engine
Move the shift lever to P (Park) or N (Neutral). The engine will not start in any other position. To restart the engine when the vehicle is already moving, use N (Neutral) only. Notice: Do not tr ...