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:

    Battery
    Refer to the replacement number shown on the original battery label when a new battery is needed. See Engine Compartment Overview  for battery location. WARNING Battery posts, terminals, an ...

    Owner Checks and Services
    At Each Fuel Stop • Check the engine oil level. See Engine Oil. Once a Month • Check the tire inflation pressures. See Tire Pressure. • Inspect the tires for wear. See Tire Inspection. ...

    Maintenance When Trailer Towing
    The vehicle needs service more often when pulling a trailer. See Scheduled Maintenance for more information. Things that are especially important in trailer operation are automatic transmission ...