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:
Convenience Net (Sedan and Coupe)
The vehicle may have a
convenience net in the rear.
Put small loads behind the net.
It can also be positioned into an
envelope style to hold smaller items.
The net is not for heavier loads.
St ...
DIC Compass
The vehicle may have a compass in
the Driver Information Center (DIC).
See Compass for
information. ...
Traction Control System (TCS)
The traction control system limits
wheel spin. The system turns on
automatically every time the vehicle
is started.
- To turn off traction control, press
and release the TCS/StabiliTrak
but ...