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:
Universal Remote System
Operation
Using Universal Remote
Press and hold the appropriate
Universal Remote button for at least
half of a second. The indicator light
will come on while the signal is
being transmitted.
Erasing U ...
Heated Steering Wheel
For vehicles with a heated steering wheel, the button for this feature is
located on the steering wheel.
(Heated Steering Wheel): Press to turn the heated steering wheel on or
off. A light on ...
Overheated Engine
Protection
Operating Mode
This operating mode allows the
vehicle to be driven to a safe place
in an emergency. Should a hot
engine condition exist, an overheat
protection mode which alternates
firing groups of cylind ...