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To contact the Customer Assistance
Center (CAC), use the phone
numbers listed in this section.
Customer assistance is available
Monday through Friday, 08:00 to
20:00 hours, and Saturdays from
08:00 to 15:00 hours.
All e-mail inquiries to the Customer
Assistance Center (CAC) should be
sent to: cac.gmc@gm.com.
5329-0812
01-800-466-0812
1-866-466-8191
00-800-052-1005
1-800-999-5252
00-800-052-0001
1-888-751-5301
800-6273
800-0122-6101
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.
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