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:
Onstar.com
The website provides access to
account information, manages the
OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
sign up for OnStar Vehicle ...
Dome Lamps
The dome lamp is located in the overhead console.
To change the dome lamp settings, press the following:
(Dome Lamp Override): Turns the lamp off, even when a door is open.
(Door): The la ...
Brake System Messages
SERVICE BRAKE SYSTEM
This message displays along with the brake system warning light if there is a
problem with the brake system. See Brake System Warning Light . If this
message appears, s ...