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:

    Variable Effort Steering
    Some vehicles have a steering system that varies the amount of effort required to steer the vehicle in relation to the speed of the vehicle. The amount of steering effort required is less at slower s ...

    Washing the Vehicle
    To preserve the vehicle's finish, wash it often and out of direct sunlight. Notice: Do not use petroleum based, acidic, or abrasive cleaning agents as they can damage the vehicle's paint, m ...

    Setting the Tone (Bass/Treble) (AM-FM Radio and AM-FM Radio with CD)
    To adjust the bass or treble: 1. Press the knob until Bass or Treble displays. 2. To adjust the setting, do one of the following: • Turn the knob. • Press either SEEK, or SEEK. • Press ...