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:
Overview
A longtime symbol of Cadillac luxury, the DeVille takes on new life as the
DTS for 2006. From its Cadillac-signature exterior styling and luxurious
interior to its powerful, refined ride character ...
Tire Pressure Monitor
This vehicle may have a Tire Pressure Monitor System (TPMS).
The TPMS warning light alerts you to a significant loss in pressure of one
of the vehicle's tires. If the warning light comes on, s ...
Roadside Service (U.S. and Canada)
U.S.: 1-800-224-1400
Canada: 1-800-882-1112.
Text Telephone (TTY) Users (U.S. Only): 1-888-889-2438.
Service is available 24 hours a day, 365 days a year. ...