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:

    Vehicle Locator Lights
    This allows the vehicle locator lights to be turned on or off. Press the MENU/SELECT knob when Vehicle Locator Lights is highlighted. Turn the knob to select On or Off. Press the knob to confirm a ...

    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 ...

    Central Door Unlocking System
    The vehicle has a central door unlocking feature. When unlocking the driver door, the other doors can be unlocked by holding the key in the turned position for a few seconds or by quickly tu ...