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 call again or try again after driving a to try the call again or try again after driving a few miles into another cellular area.

    See also:

    Engine Oil Additives/Engine Oil Flushes
    Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protectio ...

    Compass Calibration
    Press and hold the on/off button to activate the compass calibration mode. CAL will be displayed in the compass window on the mirror. The compass can be calibrated by driving the vehicle in circ ...

    Entering the Personalization Menus
    1. Press CONFIG to access the Configuration Settings menu. 2. Turn the Menu knob to highlight Vehicle Settings. 3. Press SELECT to select the Vehicle Settings menu. The following list of menu ...