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:

    Belts
    - Belts may need replacing if they squeak or show signs of cracking or splitting. - Trained dealer technicians can inspect the belts and recommend replacement when necessary. ...

    Fuel E85 (85% Ethanol)
    Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol)  . For all other vehicl ...

    Services Not Included in Roadside Assistance
    Roadside Assistance does not cover or reimburse services for the following: - Events caused by fraud or bad faith by the driver. - Vehicle immobilization situations due to a major force or ...