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:
Battery Power Protection
The battery saver feature is designed to protect the vehicle's battery.
To prevent battery discharge while driving, the following systems are reduced automatically in two stages and then turned off:
...
Safety Belt Extender
If the vehicle’s safety belt will fasten around you,
you should use it.
But if a safety belt is not long enough, your dealer
will order you an extender. When you go in to
order it, take the he ...
Automatic Crash Response
In a crash, built in sensors can automatically alert an
OnStar advisor who is immediately connected to
the vehicle to see if you need help. ...