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.

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    Accepting or Declining a Call
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    Ejecting a Disc
    DVD (Eject): Press and release to eject the disc currently playing in the top slot. A beep sounds and Ejecting Disc displays. If loading and reading of a disc cannot be completed, due to unknown for ...

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