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:

    Refined and responsive performance
    A power-dense Ecotec 2.4L four-cylinder, with dual-overhead camshafts, variable valve timing and E85 capability, is the standard engine in the Buick Verano. It produces an estimated 177 horsepower ...

    Ignition Positions
    The ignition has four different positions: In order to shift out of P (Park), ignition must be in the ON/RUN and the regular brake pedal must be applied. Notice: Using a tool to force the key to ...

    When to Change Engine Oil
    This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on engine revolutions and engine temperature, and not on mileage. Based on driving condi ...