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.

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    Climate and Air Quality
    Select the Climate and Air Quality menu and the following may be displayed: • Auto Fan Speed • Air Quality Sensor • Auto Heated Seats • Air Conditioning Mode • Remote Start Auto Hea ...

    Transmission Messages
    SERVICE TRANSMISSION This message displays if there is a problem with the transmission. See your dealer. SHIFT TO PARK This message displays when the transmission needs to be shifted to P ( ...

    Shoulder Belt Height Adjuster
    The vehicle has a shoulder belt height adjuster for the driver and right front passenger seating positions. Adjust the height so the shoulder portion of the belt is on the shoulder and not falling of ...