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:

    Running the Vehicle While Parked
    It is better not to park with the engine running. But if you ever have to, here are some things to know. WARNING: Idling a vehicle in an enclosed area with poor ventilation is dangerous. Engine ...

    ENGINE OIL HOT, IDLE ENGINE
    This message displays when the engine oil temperature is too hot. Stop and allow the vehicle to idle until it cools down. ...

    SERVICE BATTERY CHARGING SYSTEM
    This message is displayed when there is a fault in the battery charging system. Take the vehicle to your dealer for service. ...