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:
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
(Rear): Press this button
to turn the rear
window defogger on or off.
An indicator light in the button will co ...
Safety System Check
Now and then, check that the safety belt reminder light, safety belts, buckles, latch plates, retractors, and anchorages are working properly.
Look for any other loose or damaged safety belt system p ...
OnStar Overview
If equipped, this vehicle has a
comprehensive, in-vehicle system
that can connect to a live Advisor
for Emergency, Security, Navigation,
Connection, and Diagnostic
Services.
The OnStar sy ...
