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:
Used Replacement Wheels
WARNING
Replacing a wheel with a used one is dangerous. How it has been used or how far
it has been driven may be unknown. It could fail suddenly and cause a crash. When
replacing wheels, us ...
Turning the System On or Off
VOL/ (Volume/Power):
Press to turn the system on and off ...
Turning the RVC System On or Off
The RVC system is designed to help the driver when backing up by displaying a
view of the area behind the vehicle. When the vehicle is shifted into R (Reverse),
the video image appears on the navi ...