Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Service Publications Ordering Information
Service Manuals
Service Manuals have the diagnosis and repair information on the engines,
transmission, axle, suspension, brakes, electrical, steering, body, etc.
Service Bulletins
Service B ...
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on a combination of factors which
include engine revolutions, engine
temperature, an ...
Rear Seat Entertainment (RSE) System (Headrest DVD)
Vehicles with an RSE system include two head restraint video display screens
with integrated DVD players, auxiliary inputs, two wireless headphones, and a remote
control. This system works indepen ...