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:

    Safety Belts
    Refer to the following sections for important information on how to use safety belts properly. ► Safety Belts . ► How to Wear Safety Belts Properly . ► Lap-Shoulder Belt . ` ...

    Low-Profile Tires
    If the vehicle has P235/45R18 size tires, they are classified as low-profile tires. Notice: Low-profile tires are more susceptible to damage from road hazards or curb impact than standard profile ...

    Sunroof
    For vehicles with a sunroof, the sunroof only operates when the ignition is in ON/RUN or ACC/ ACCESSORY, or in Retained Accessory Power (RAP). See Retained Accessory Power (RAP)  for more i ...