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:
Cruise Control
CTS Shown, CTS–V Similar
The cruise control buttons are
located on the left side of the
steering wheel.
: Press to turn the system on or
off. The indicator light on the button
turns on wh ...
Vehicle Reminder Messages
ICE POSSIBLE DRIVE WITH CARE
This message is displayed when ice conditions are possible.
TURN WIPER CONTROL TO INTERMITTENT FIRST
This message is displayed when attempting to adjust the inter ...
Seat Adjustment
Power Seats ...