Buick LaCrosse: OnStar® - Performance and Maintenance - In Brief - Buick LaCrosse Owners ManualBuick LaCrosse: OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview for more information.

    Roadside Assistance Program
    U.S.: 1-800-252-1112 TTY Users (U.S.): 1-888-889-2438 Canada: 1-800-268-6800 Mexico: 01-800-466-0818 As the owner of a new Buick, you are automatically enrolled in the Roadside Assistance prog ...

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    eAssist Automatic Engine Start/Stop
    WARNING! Exiting the vehicle, without first shifting into P (Park), may cause the vehicle to move, you or others may be injured. Because the vehicle has the automatic engine start/stop feat ...

    Installing The LATCH-Compatible Child Restraint System
    We urge you to carefully follow the directions of the manufacturer when installing your child restraint. Not all child restraint systems will be installed as described here. Again, carefully foll ...

    Turn signal switch
    Turn signal (1) Move the lever up or down to signal the turning direction. When the turn is completed, the turn signals cancel automatically. Lane change signal  (2)- To signal a lane change ...