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 Operation
    (Power): Press to turn the climate control system on or off. (Fan Control): Press to increase or decrease the fan speed. Pressing either button cancels automatic operation and the system goes into ...

    Heated and Ventilated Seats
    The buttons are on the climate control panel. : Press to cool the entire seat. : Press to heat the seatback only. : Press to heat the seat and seatback. Press the desired button once for the ...

    Fuel Economy Light
    This light should come on briefly as the vehicle is started. If it does not come on, have the vehicle serviced by your dealer. For vehicles with the fuel economy mode light, it comes on when t ...