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:

    Driving on Snow or Ice
    Drive carefully when there is snow or ice between the tires and the road, creating less traction or grip. Wet ice can occur at about 0°C (32°F) when freezing rain begins to fall, resulting in even ...

    Interior Mirror
    The vehicle has an automatic dimming inside rearview mirror. Automatic dimming reduces the glare of lights from behind the vehicle. The dimming feature comes on and the indicator light illuminat ...

    Display Settings
    Press the Config button on the Home Page or the CONFIG button on the faceplate, then select Display Settings from the list. The following options may display: Dimming Mode: Press to change t ...