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:

    Vehicle Information Menu Items
    Press MENU on the turn signal lever until the Vehicle Information Menu is displayed. Use w / x to scroll through the following menu items: Unit Tire Pressure Remaining Oil Life Battery Vol ...

    Once a Month
    • Tire inflation check. See Inflation - Tire Pressure. • Tire wear inspection. See Tire Inspection and Rotation. ...

    Engine Power Messages
    ENGINE POWER IS REDUCED This message displays when the vehicle's engine power is reduced. Reduced engine power can affect the vehicle's ability to accelerate. If this message is on, but t ...