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:

    Exiting the Feature Settings Menu
    The feature settings menu will be exited when any of the following occurs: • The vehicle is no longer in ON/RUN. • The trip/fuel or vehicle information DIC buttons are pressed. • The end of t ...

    Trip/Fuel Menu Items
    Press the MENU button until Trip/ Fuel Information Menu is displayed. Then press to scroll through the following menu items: ○ Trip 1 ○ Trip 2 ○ Fuel Range ○ Average Fu ...

    Power Door Locks
    If available, the switches are on the front doors. : Press to unlock the doors. : Press to lock the doors. ...