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:

    Engine Oil Additives/Engine Oil Flushes
    Do not add anything to the oil. The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protectio ...

    Automatic Dimming Rearview Mirror
    To adjust the inside rearview mirror, hold the rearview mirror in the center and move it to view the area behind the vehicle. For vehicles with an automatic dimming rearview mirror, the mirror will ...

    Window Lockout
    (Lockout): Your vehicle has a lockout feature to prevent passengers from operating the power windows. The lockout switch is located in front of the window switches on the driver’s door. A l ...