General Motors Customer Service Contacts

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General Motors Company is an American multinational corporation headquartered in Detroit, that manufactures, markets and sells vehicles, parts and financial services.

GM Brands include: Chevrolet, Buick, Cadillac, and GMC.

Responsiveness rating


What you need to know about General Motors

The company responds to most customer complaints in a satisfactory manner.

How to resolve a problem with General Motors

This guide on how to solve a customer service problem will help you resolve most problems with the company. You can also refer to the executive contacts below or contact our advocacy team directly.


300 Renaissance Center
Detroit, MI 48243

Phone Contacts

Customer Service: (800) 462-8782

Customer Assistance Centers:

Buick:            (800) 521-7300
Cadillac:        (800) 458-8006
Chevrolet:     (800) 222-1020
GMC:            (800) 462-8782
Saturn:         (800) 553-6000
HUMMER:    (800) 486-6376
Pontiac:       (800) 762-2737

Fax: (517) 272-3709

Email Contacts

Contact form

Customer Service Resources

Mailing Address:

General Motors Company
P.O. Box 33170
Detroit, MI 48232-5170

Social Media Contacts


Executive Contacts

Primary Contact
William Kopicki
Executive Commodity Director - Customer Care and Aftersales
300 Renaissance Center
Detroit, MI 48243
[email protected]

Secondary Contact
Craig Buchholz
Senior Vice President, Global Communications
300 Renaissance Center
Detroit, MI 48243
[email protected]

Mark Reuss
300 Renaissance Center
Detroit, MI 48243
[email protected]

Chief Executive
Mary T. Barra
Chairman & CEO
300 Renaissance Center
Detroit, MI 48243
(313) 556-5000
[email protected]