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:
Automatic Transmission
If the vehicle is a hybrid, see the hybrid supplement for more information.
The vehicle has a Hydra-Matic® 6L80 automatic transmission, and has an electronic
shift position indicator within the ins ...
Accessories and
Modifications
Adding non–dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emiss ...
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 ...