Special Application Services
. Severe Commercial Use Vehicles Only: Lubricate chassis components every 5 000 km/3,000 mi.
- Have underbody flushing service performed once a year.
See also:
Tire Terminology and Definitions
Air Pressure: The amount of air inside the tire pressing outward on each
square inch of the tire. Air pressure is expressed in kPa (kilopascal) or psi
(pounds per square inch).
Accessory Weight: ...
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 ...
Sedan and Wagon Uplevel Model
From the inside, for a front door pull
the door handle. Pulling the door
handle again unlatches the door.
For a rear door use the door lock
knob on the top of the door. ...






