Service Bulletins

Service Bulletins give additional technical service information needed to knowledgeably service General Motors cars and trucks.

Each bulletin contains instructions to assist in the diagnosis and service of the vehicle.

    See also:

    Storing Name Tags
    The system can store up to 30 phone numbers as name tags that are shared between the Bluetooth and OnStar systems. The system uses the following commands to store and retrieve phone numbers: ► ...

    Highbeam On Light
    This light comes on when the high-beam headlamps are in use. See Headlamp High/Low-Beam Changer for more information. ...

    Services Not Included in Roadside Assistance
    Roadside Assistance does not cover or reimburse services for the following: • Events caused by fraud or bad faith by the driver. • Vehicle immobilization situations due to a major force ...