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:
Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...
STABILITRAK
COMPETITIVE MODE
This message displays when the
Competitive Driving Mode is
selected. When in this mode, the
Traction Control System (TCS)
will not be operating and the
TCS/StabiliTrak warning light will
t ...
Keyless Locking
The doors lock after several
seconds if all doors are closed
and at least one keyless access
transmitter has been removed
from the interior of the vehicle.
To customize if the doors
automat ...






