Unable to Connect to OnStar Message

GMC Sierra / GMC Sierra Owners Manuals / OnStar / OnStar Additional Information / Unable to Connect to OnStar Message

If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push Vehicle and Power Issues to try the call again or try again after driving a few miles into another cellular area.

    See also:

    Parking Brake
    To set the parking brake, hold the regular brake pedal down, then push the parking brake pedal down. If the ignition is on, the brake system warning light will come on. See Brake System Warning ...

    Disconnecting the RVC
    The rear vision camera must be disconnected if the tailgate needs to be removed. To disconnect the camera: 1. Remove the license plate. 2. Disconnect the camera connectors from the chassis harness, ...

    DVD Display Error Messages
    The DVD display error message depends on which radio the vehicle has. The video screen might display one of the following: Disc Load/Eject Error: This message displays when there are disc load or eje ...