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:

    Courtesy Lamps
    The courtesy lamps come on automatically when any door is opened and the dome lamp is in the door position. ...

    Manual Transmission Fluid
    It is not necessary to check the manual transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to a dealer for service. Have ...

    Front Turn Signal Lamp (Base and Uplevel)
    To replace the Front Turn Signal Lamp: 1. Remove the turn signal lamp bulb socket from the headlamp assembly. 2. Remove the turn signal lamp bulb from the socket. 3. Replace the bulb in the bulb ...