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:
Feature Settings Menu Items
The following are customization features that allow you to program settings to
the vehicle:
DISPLAY IN ENGLISH
This feature will only display if a language other than English has been set.
This ...
Brake Assist
This vehicle has a brake assist feature designed to assist the driver in
stopping or decreasing vehicle speed in emergency driving conditions. This
feature uses the stability system hydraulic brake ...
Exterior Care
Washing the Vehicle
To preserve the vehicle's finish, wash it often and out of direct sunlight.
Notice: Do not use petroleum based, acidic, or abrasive cleaning agents
as they can damage the ve ...