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:
Compass
The vehicle may have a compass display in the Driver Information Center
(DIC). See Compass. ...
Recreational Vehicle Towing
If the vehicle is a hybrid, see the hybrid supplement for more information.
Recreational vehicle towing means towing the vehicle behind another vehicle –
such as behind a motorhome. The two most co ...
StabiliTrak® OFF Light
This light should come on briefly as the vehicle is started. If it does not
come on, have the vehicle serviced by your dealer.
This light comes on when the StabiliTrak system is turned off by ...