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:
Ignition Positions
The ignition switch has four different positions.
To shift out of P (Park), the ignition must be in ON/RUN or ACC/ ACCESSORY and
the regular brake pedal must be applied.
A (STOPPING THE ENGINE/ ...
Vehicle Overview
Cadillac takes another step into rear-wheel-drive territory with its new STS
sedan, which replaces the front-wheel-drive Seville. Built on a Sigma-based
architecture, like the automaker's smaller ...
Vehicle Messages
Messages displayed on the DIC
indicate the status of the vehicle or
some action that may be needed
to correct a condition. Multiple
messages may appear one after
another.
The messages that ...






