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:

    When the Light Is On Steady
    This indicates that one or more of the tires are significantly underinflated. A Driver Information Center (DIC) tire pressure message may also display. See Vehicle Messages on page 5‑42 for mor ...

    Adjusting the Speakers (Balance/Fade) (All Except AM-FM Radio and Radio with CD)
    BAL/FADE (Balance/Fade): To adjust the balance or fade: 1. Press the knob until the speaker control tabs display. 2. Highlight the desired speaker control tab by doing one of the following: • Pr ...

    How to Check Lubricant
    To get an accurate reading, the vehicle should be on a level surface. 1500 Series A. Fill Plug B. Drain Plug All Except 1500 Series A. Fill Plug B. Drain Plug • When the differential is c ...