TTY Users
OnStar has the ability to communicate to the deaf, hard–of–hearing, or speech–impaired customers while in the vehicle.
The available dealer–installed TTY system can provide in-vehicle access to all of the OnStar services, except Virtual Advisor and OnStar Turn–by–Turn Navigation.
See also:
Theft-Deterrent Feature
TheftLock® is designed to discourage theft of the vehicle's radio by learning
a portion of the Vehicle Identification Number (VIN). The radio does not operate
if it is stolen or moved to a dif ...
Ignition Transmission
Lock Check
While parked, and with the parking
brake set, try to turn the ignition to
LOCK/OFF in each shift lever
position.
- The ignition should turn to
LOCK/OFF only when the shift
lever is in P (Pa ...
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  ...






