Contact Information

GM Benefits & Services Center
  TTY Service for Hearing or Speech Impaired:
  Overseas Calls
Dial your country's toll-free AT&T Direct® access number
then enter 877-833-9900.
In the U.S., call 1-800-331-1140 to obtain AT&T Direct access numbers. From anywhere in the world, access numbers are available online at or from your local operator.