OnStar Services

See also:

Express Window Anti-Pinch Override
WARNING If express override is activated, the window will not reverse automatically. You or others could be injured and the window could be damaged. Before you use express override, make sur ...

Security Light
The immobilizer light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator ligh ...

Ignition Positions
The ignition switch has four different positions. To shift out of P (Park), the ignition must be in ON/RUN or ACC/ ACCESSORY and the regular brake pedal must be applied. A (STOPPING THE ENGINE/ ...