Vehicle Identification Number (VIN)

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This legal identifier is in the front corner of the instrument panel, on the left side of the vehicle. It can be seen through the windshield from outside. The VIN also appears on the Vehicle Certification and Service Parts labels and certificates of title and registration.

Engine Identification

The eighth character in the VIN is the engine code. This code identifies the vehicle's engine, specifications, and replacement parts. See “Engine Specifications” under Capacities and Specifications for the vehicle's engine code.

    See also:

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

    Transferring Service
    Push to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has ch ...

    Entering the Feature Settings Menu
    1. Turn the ignition on. To avoid excessive drain on the battery, it is recommended that the headlamps are turned off. 2. Press the customization button to enter the feature settings menu. ...