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:
Starting the Engine
If the vehicle is a hybrid, see the hybrid supplement for more information.
Move the shift lever to P (Park) or N (Neutral). The engine will not start in
any other position. To restart the engine w ...
Map Coordinates
The coordinates destination entry method lets you select a destination by entering
latitude and longitude coordinates.
Map Coordinates: Press to access the Coordinates Entry screen.
To use the c ...
When the Light Is On Steady
This indicates that one or more of
the tires are significantly
underinflated.
A Driver Information Center (DIC)
tire pressure message may also
display. See Tire Messages. Stop as soon as
po ...