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:
Airbag System Messages
SERVICE AIR BAG
This message displays if there is a problem with the airbag system. Have your
dealer inspect the system for problems. See Airbag Readiness Light
and Airbag System ...
Courtesy Transportation Program (U.S. and Canada)
To enhance your ownership experience, we and our participating dealers are
proud to offer Courtesy Transportation, a customer support program for vehicles
with the Bumper-to-Bumper (Base Warranty Co ...
Jump Starting
For more information about the vehicle battery, see Battery .
If the vehicle is a hybrid, see the hybrid supplement for more information.
If the vehicle's battery has run down, you may wan ...