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:

    Automatic Level Control
    The automatic level control rear suspension comes as a part of the Road Sensing Suspension. See Road Sensing Suspension  . This type of level control is fully automatic and will provide a bett ...

    Setting the Clock
    The navigation system time and the analog clock operate independently. Changing the time through the navigation system does not change the time on the analog clock. See Clock   to change ...

    Compass
    The vehicle may have a compass in the Driver Information Center (DIC). ...