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:

    Gasoline Specifications
    At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 in Canada. Some gasolines may contain an octane-enhancing additive called methylcyclopentadienyl m ...

    License Plate Lamp
    To replace one of these bulbs: Passenger Side Shown, Driver Side Similar 1. Push the release tab (A) toward the lamp assembly. 2. Pull the lamp assembly down to remove. A. Bulb Socket B. B ...

    Older Children
    Older children who have outgrown booster seats should wear the vehicle’s safety belts. Q: What is the proper way to wear safety belts? A: An older child should wear a lap-shoulder belt and get ...