OnStar
TTY Users
In this manual: OnStar
~1min read
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.
Test yourself
A quick Cadillac CTS quiz: every answer comes with an explanation and a link to the manual page.
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