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:

    OnStar® Destination Download (US and Canada)
    OnStar Destination Download (if equipped) is a service available for OnStar subscribers that makes operating your navigation system much simpler. It allows subscribers to request and receive navig ...

    Trip/Fuel Menu Items
    (Trip/Fuel): Press to scroll through the following menu items: Odometer Press the trip/fuel button until ODOMETER displays. This display shows the distance the vehicle has been driven in either ...

    Boost Gauge
    Metric English For the CTS-V, this gauge is located in the instrument panel cluster. This gauge indicates positive manifold pressure, which is the induction air pressure level in the in ...