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:
Trip Odometer
The trip odometer can show how far the vehicle has been driven since the trip
odometer was last set to zero.
For more information see “Trip Odometer” under Driver Information Center (DIC)
. ...
Anti-theft Alarm System Message
SERVICE THEFT DETERRENT SYSTEM
This message displays when there is a problem with the theft-deterrent system.
The vehicle may or may not restart so you may want to take the vehicle to your dealer
...
Obstacle Detection Features
If the liftgate encounters an obstacle
during a power open or close cycle,
a warning chime will sound and the
liftgate will automatically reverse
direction to the full closed or
open positio ...