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:
Adjustable Throttle and Brake Pedal
If the vehicle has this feature, the position of the throttle and brake
pedals can be adjusted.
The switch used to adjust the pedals is located on the right side of the
steering column, below ...
Odometer
Displays the distance the vehicle
has been driven in either
kilometers (km) or miles (mi). ...
SERVICE KEYLESS START
SYSTEM
If the vehicle has the keyless
access system, this message
displays when there is a problem
with this feature. See your dealer. ...