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.

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    Ride & Handling
    Unfortunately, the ride is another area where the Super looks better on paper than the other Lucerne trim levels, but in some ways performs worse. The CXL's suspension tuning is firmer than that o ...

    Clearing the System
    Unless information is deleted out of the in-vehicle Bluetooth system, it will be retained indefinitely. This includes all saved name tags in the phone book and phone pairing information. For infor ...

    Instrument Panel Illumination Control
    The brightness of the instrument panel lighting and steering wheel controls can be adjusted. : Move and hold the thumbwheel up or down to brighten or dim the lights. ...