Customer Assistance for Text Telephone (TTY) Users (U.S. and Canada)

To assist customers who are deaf, hard of hearing, or speech impaired and who use Text Telephones (TTYs), GMC has TTY equipment available at its Customer Assistance Center. Any TTY user can communicate with GMC by dialing:

1-800-462-8583. TTY users in Canada can dial 1-800-263-3830.

    See also:

    Symbols
    The RVC system may have a feature that lets the driver view symbols on the radio screen while using the RVC. The Ultrasonic Rear Park Assist (URPA) system must not be disabled to use the caution s ...

    Repeat Functionality
    To use Repeat: Press the softkey below or to select between Repeat All and Repeat Track. (Repeat All): Press the softkey below to repeat all tracks. The tab appears lowered when Repeat All is b ...

    Turn and Lane-Change Signals
    An arrow on the instrument panel cluster flashes in the direction of the turn or lane change. Move the lever all the way up or down to signal a turn. Raise or lower the lever until the arrow start ...