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:

    Gasoline Specifications (U.S. and Canada Only)
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    DVD Distortion
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    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 ...