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:

    FM Stereo
    FM signals only reach about 16 to 65 km (10 to 40 mi). Although the radio has a built-in electronic circuit that automatically works to reduce interference, some static can occur, especially around ta ...

    Jump Starting
    For more information about the vehicle battery, see Battery on page 10‑31. If the vehicle is a hybrid, see the hybrid supplement for more information. If the vehicle's battery (or batteries) h ...

    When to Add Engine Oil
    2.4L L4 Engine 3.0L V6 Engine If the oil is below the cross-hatched area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Righ ...