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:
Fuel Additives
To provide cleaner air, all gasolines in the United States are now required to
contain additives that help prevent engine and fuel system deposits from forming,
allowing the emission control syste ...
Leaving the Vehicle with the Engine Running
WARNING
It can be dangerous to leave the vehicle with the engine running. The vehicle
could move suddenly if the shift lever is not fully in P (Park) with the parking
brake firmly set. And, ...
Heated Mirrors
(Rear Window Defogger):
Press to heat the mirrors.
See “Rear Window Defogger” under Dual Automatic Climate Control System for
more information. ...






