OnStar Services

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Exterior Lamp Controls
Exterior Lamp Controls The exterior lamp control is located on the instrument panel on the outboard side of the steering wheel. Turn the control to the following positions: (Off): Turns of ...

Programming with a Recognized Transmitter (Keyless Access Vehicles Only)
A new transmitter can be programmed to the vehicle when there is one recognized transmitter. To program, the vehicle must be off and all of the transmitters, both currently recognized and new ...

Tire Pressure Light
For vehicles with the Tire Pressure Monitor System (TPMS), this light comes on briefly when the engine is started. It provides information about tire pressures and the TPMS. ...