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:

    Certification Label
    Label Example A vehicle-specific Certification label is attached to either the driver door edge or the lower center pillar on the driver side of the vehicle. The label tells the gross wei ...

    Steering Wheel Adjustment
    Push the control up or down to tilt the steering wheel up or down. To set the memory position, see Vehicle Personalization  . ...

    Weight of the Trailer
    How heavy can a trailer safely be? It should never weigh more than 450 kg (1,000 lbs). But even that can be too heavy. Speed, altitude, road grades, outside temperature, special equipment, ...