TTY Users
OnStar has the ability to communicate to the deaf, hard&-ofhearing, 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:
Vehicle Reminder Messages
ICE POSSIBLE DRIVE WITH CARE
This message displays when the outside air temperature is cold enough to create icy road conditions. Adjust your driving accordingly. ...
Turning the Rear Vision Camera System On or Off
To turn the rear vision camera system on or off:
1. Shift into P (Park).
2. Press the MENU button to enter the configure menu options, then press the MENU hard key to select Display or touch the Dis ...
Electronic Transfer Case
The transfer case knob is located next to the steering column.
Use the dial to shift into and out of four-wheel drive. ...