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:
Objects Detected by Both the Front and Rear Sensors
In general, if objects are detected at the same time near both the front and
rear bumpers while backing up, the beeps only sound to indicate that objects
are close to the rear bumper.
However, if ...
Security Light
The immobilizer light should come on briefly as the engine is started.
If it does not come on, have the vehicle serviced by your dealer.
If the system is working normally, the indicator ligh ...
Easy Exit Driver Seat
This feature moves the seat rearward allowing the driver more room to exit
the vehicle.
To activate, place the ignition in OFF and open the driver door. If the
driver door is already open, placin ...






