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:
Display
Press CONFIG to enter the configure menu options, then press CONFIG repeatedly
until Display is selected or press the Display screen button.
Display OFF
Press this screen button to turn the disp ...
Hill Start Assist (HSA)
Non-hybrid vehicles with StabiliTrak have a Hill Start Assist (HSA) feature,
which may be useful when the vehicle is stopped on a grade. This feature is designed
to prevent the vehicle from rollin ...
Limit Features While Driving
The navigation system may have this feature. Touch the Limit Features While Driving
screen button to turn the ability to limit functions on and off while driving. When
this screen button is highli ...