Add-on Electrical Equipment

The OnStar system is integrated into the electrical architecture of the vehicle. Do not add any electrical equipment. See Add-On Electrical Equipment. Added electrical equipment may interfere with the operation of the OnStar system and cause it to not operate.

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    What to Use
    WARNING! Adding only plain water or some other liquid to the cooling system can be dangerous. Plain water and other liquids, can boil before the proper coolant mixture will. The coolant warn ...

    Manual Liftgate
    For vehicles without keyless access, unlock the vehicle before opening the liftgate. Press the touch pad located in the handle of the liftgate, above the license plate, and lift up to open. Do ...

    Destination
    Press DEST to access the Destination Entry screen. From this screen, you can select from several options to plan a route by entering destination points. To enter a destination, choose from one of ...