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:
Retained Accessory Power (RAP)
These vehicle accessories can be
used for up to 10 minutes after the
engine is turned off:
- Audio System
- Power Windows
- Sunroof (if equipped)
Power to the audio system will work
up to 10 ...
Automatic Headlamp System
When it is dark enough outside, the automatic headlamp system turns on the headlamps
at the normal brightness, along with the taillamps, sidemarker, parking lamps, and
the instrument panel lights. ...
Navigation System
If the vehicle has a navigation system, use of the system may result in the
storage of destinations, addresses, telephone numbers, and other trip
information.
Refer to the navigation manual for i ...






