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:

    Not quite midsize
    Like most mid-size entry-level luxury cars, the CTS has a fairly restrictive cabin. Although I can live with that, the hard front and very tight rear seats put a damper on the experience. Sure, it ...

    Maintenance
    Passenger Compartment Air Filter The filter removes dust, pollen, and other airborne irritants from outside air that is pulled into the vehicle. The filter should be replaced as part of routine ...

    Nav (Navigation)
    Press CONFIG to enter the configure menu options, then press CONFIG again, repeatedly until Nav is selected or press the Nav screen button. Voice Prompt Press the Voice Prompt screen button to c ...