Vehicle and Power Issues

OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.

    See also:

    Manual Operation
    (Power): Press to turn the climate control system on or off. When the climate control system is turned off the air inlet defaults to outside air. (Fan Control): Press the buttons to increa ...

    Tire Sidewall Labeling
    Useful information about a tire is molded into its sidewall. The examples show a typical passenger vehicle tire and a compact spare tire sidewall. Passenger (P—Metric) Tire Example (A) T ...

    Place a Call Using a Stored Number
    1. Push . System responds: “OnStar ready.”. 2. Say “Call <name tag>.”. System responds: “OK, calling <name tag>.” ...