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:

    Window Lockout
    This feature prevents the rear passenger windows from operating, except from the driver position. Press to activate the rear window locks. An indicator light will illuminate when the featu ...

    Customer Assistance Offices (U.S. and Canada)
    Cadillac encourages customers to call the toll-free number for assistance. However, if a customer wishes to write or e-mail Cadillac, the letter should be addressed to: United States Cadilla ...

    Previous Destination
    The previous destination entry method lets you select a destination from a list of previous destination points. Previous Destination: Press to access the Previous Destination screen. The syste ...