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:
Rear Seat Audio (RSA) System
Vehicles with this feature allow the rear seat passengers to listen to and
control any of the music sources: radio, CDs, DVDs, or other auxiliary sources.
RSA can only control music sources that the ...
Passing Another Vehicle While Using Cruise Control
Use the accelerator pedal to increase the vehicle speed. When you take your foot
off the pedal, the vehicle will slow down to the previous set cruise speed. ...
Map Data Updates
The navigation map database is stored on a compact flash card. It is usable only
in this type of navigation system, and will not function in other electronic devices.
The map in the vehicle was ins ...