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:

    Recommended Fluids, Lubricants, and Parts
    Recommended Fluids and Lubricants Maintenance Replacement Parts Replacement parts identified below by name, part number, or specification can be obtained from your dealer. ...

    Wireless Headphones
    The two wireless headphones included with the Headrest DVD RSE system will only work with the Headrest DVD RSE system and are marked for channel 3 and 4. The wireless headphones must be used withi ...

    Engine & Transmission
    The CTS comes standard with a 3.0-liter V-6 engine, but our test car's optional 3.6-liter V-6 and six-speed automatic transmission are a special pair among drivetrains. The transmission's shifts a ...