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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    Overview
    Buick has rekindled a name from its storied 20th-century past to mark the beginning of a new level of refinement: Super. The badge is designated exclusively for Buick's most premium, powerful mode ...

    Overheated Engine Protection Operating Mode
    If an overheated engine condition exists and the message ENGINE OVERHEATED STOP ENGINE is displayed, an overheat protection mode which alternates firing groups of cylinders helps prevent engine ...

    Turning a Function On or Off
    1. Turn the Menu knob to highlight the function. 2. Press SELECT to turn the function on or off. ...