Customer Assistance Offices (U.S. and Canada)

GMC encourages customers to call the toll-free number for assistance.

However, if a customer wishes to write or e-mail GMC, the letter should be addressed to:

United States

GMC Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172

www.GMC.com

1-800-GMC-8782 (1-800-462-8782)
1-800-462-8583 (For Text
Telephone Devices (TTYs))
Roadside Assistance:
1-888-881-3302

From Puerto Rico:

1-800-496-9992 (English)
1-800-496-9993 (Spanish)

From U.S. Virgin Islands:

1-800-496-9994

Canada

General Motors of Canada Limited
Customer Care Centre, Mail Code: CA1-163-005
1908 Colonel Sam Drive
Oshawa, Ontario L1H 8P7
www.gmc.ca

1-800-263-3777 (English)
1-800-263-7854 (French)
1-800-263-3830 (For Text Telephone Devices (TTYs))
Roadside Assistance:
1-800-268-6800

All Overseas Locations

Please contact the local General Motors Business Unit.

Mexico, Central America and Caribbean Islands/Countries (Except Puerto Rico and U.S. Virgin Islands)

General Motors de Mexico, S. de R.L. de C.V.
Customer Assistance Center
Av. Ejercito Nacional #843
Col. Granada
C.P. 11520, Mexico, D.F.

01-800-466-0801
Long Distance: 011-52-53 29 0801

    See also:

    How to Check Automatic Transmission Fluid
    Because this operation can be a little difficult, it may be best to have this done at the dealer service department. If not taken to the dealer, be sure to follow all the instructions here or a false ...

    Speedometer
    The speedometer shows how fast the vehicle is moving in either kilometers per hour (km/h) or miles per hour (mph). The speedometer cannot be reset. ...

    Vehicle Reminder Messages
    ICE POSSIBLE DRIVE WITH CARE This message is displayed when ice conditions are possible. TURN WIPER CONTROL TO INTERMITTENT FIRST This message is displayed when attempting to adjust the intermitten ...