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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    How the System Works
    The SBZA symbol lights up in the side mirrors when the system detects a vehicle in the side blind zone, indicating it may be unsafe to change lanes. Before making a lane change, check the SBZA dis ...

    DIC Operation and Displays
    The DIC has different displays which can be accessed by using the DIC buttons on the turn signal lever located on the left side of the steering wheel. The DIC displays trip, fuel, vehicle system inf ...

    Climate and Air Quality
    Select the Climate and Air Quality menu and the following will be displayed: - Auto Fan Speed - Air Quality Sensor - Remote Start Auto Seat Cool - Remote Start Auto Heated Seats - Auto Defog - ...