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:

    EPB Release
    To release the EPB, place the ignition in the ON/RUN position, apply and hold the brake pedal, and push down momentarily on the EPB switch. If you attempt to release the EPB without the brak ...

    Traction Control System (TCS)
    The traction control system limits wheel spin. The system turns on automatically every time the vehicle is started. • To turn off traction control, press and release the Traction Control ...

    Customer Satisfaction Procedure
    Your satisfaction and goodwill are important to your dealer and to Buick. Normally, any concerns with the sales transaction or the operation of the vehicle will be resolved by your dealer's sa ...