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:

    Objects Detected by Both the Front and Rear Sensors
    In general, if objects are detected at the same time near both the front and rear bumpers while backing up, the beeps only sound to indicate that objects are close to the rear bumper. However, if ...

    Security Light
    The immobilizer light should come on briefly as the engine is started. If it does not come on, have the vehicle serviced by your dealer. If the system is working normally, the indicator ligh ...

    Easy Exit Driver Seat
    This feature moves the seat rearward allowing the driver more room to exit the vehicle. To activate, place the ignition in OFF and open the driver door. If the driver door is already open, placin ...