Buick LaCrosse: OnStar Personal Identification 
Number (PIN) - OnStar Additional Information - OnStar - Buick LaCrosse Owners ManualBuick LaCrosse: OnStar Personal Identification Number (PIN)

A PIN is needed to access some of the OnStar services, like Remote Door Unlock and Stolen Vehicle Assistance. You will be prompted to change the PIN the first time when speaking with an Advisor. To change the OnStar PIN, call OnStar and provide the Advisor with the current number.

    Onstar.com
    The website provides access to account information, manages the OnStar subscription, and allows viewing of videos of each service. Get subscription plan pricing and sign up for OnStar Vehicle ...

    Warranty
    OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...

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    Important safety notes
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    START
    CAUTION Do not turn the ignition switch to the “START” position while the engine is running. The engine is started in this position. The starter cranks the engine to start it. When the key is ...

    Wheel balance
    Each wheel was correctly balanced when your vehicle was new, but the wheels will become unbalanced as the tires become worn during use. Wheel imbalance causes the steering wheel to vibrate slightl ...