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:

    Cargo Cover
    For vehicles with the dual position cargo cover, it can be used to cover items in the cargo area of the vehicle. The shade can be set in two positions. It can be set in a halfway open (A) pos ...

    Engine Oil
    To ensure proper engine performance and long life, careful attention must be paid to engine oil. Following these simple, but important steps will help protect your investment: - Always use engine ...

    Instrument Panel, Leather, Vinyl, and Other Plastic Surfaces
    Use a soft microfiber cloth dampened with water to remove dust and loose dirt. For a more thorough cleaning, use a soft microfiber cloth dampened with a mild soap solution. Notice: Soaking or sat ...