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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    Reading Lamps
    For vehicles with reading lamps in the overhead console, press the button located next to the lamp to turn it on or off. The vehicle may also have reading lamps in other locations. To turn the lamps ...

    Parking on Hills
    WARNING Parking the vehicle on a hill with the trailer attached can be dangerous. If something goes wrong, the rig could start to move. People can be injured, and both the vehicle and the trailer ...

    Retained Accessory Power (RAP)
    The following vehicle accessories can be used for up to 10 minutes after the engine is turned off: • Audio System • Power Windows • OnStar System (if equipped) • Sunroof (if equipped) The ...