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:

    Manual Mode
    Driver Shift Control (DSC) Notice: If you drive the vehicle at a high rpm without upshifting while using Driver Shift Control (DSC), you could damage the vehicle. Always upshift when necessary while ...

    Head Restraints
    The vehicle's front and rear seats have adjustable head restraints in the outboard seating positions. WARNING! With head restraints that are not installed and adjusted properly, there is a g ...

    If Your Vehicle is Stuck in Sand, Mud, Ice, or Snow
    Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. See Rocking Your Vehicle to Get It Out. If the vehicle has a traction system, it can often help to ...