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:

    OnStar Overview
    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. The OnStar system s ...

    Anti-theft Alarm System Messages
    SERVICE THEFT DETERRENT SYSTEM This message displays when there is a problem with the theft-deterrent system programmed in the key. A fault has been detected in the system which means that t ...

    Blizzard Conditions
    Being stuck in snow can be a serious situation. Stay with the vehicle unless there is help nearby. If possible, use the Roadside Service (U.S. and Canada)   or Roadside Service (Mexico)&nb ...