General Motors Headquarters Contact Details and Email Format

General Motors is a world famous automobile manufacturer, headquartered in Detroit, United States. The stock is listed on the New York Stock Exchange with stock name GM. The stock price is US$35.65 as on December 13, 2019. GM’s most popular cars are: Chevrolet Cruze, Chevrolet Silverado, Chevrolet Equinox, and Chevrolet Camaro. Mary T. Barra is the current Chief Executive Officer of General Motors. William C Durant and Charles Stewart Mott were the founders of General Motors.

GM has several subsidiary brands, such as GMC, Chevrolet, Opel, ACDelco, OnStar, Vauxhall Motors, and more.

General Motors Headquarters
General Motors Headquarters

Corporate and Global Headquarters

The corporate headquarters of GM’s physical address is 300 Renaissance Ctr, Detroit, MI 48243 and mailing address is General Motors Company, P.O. BOX 33170, Detroit, MI 48232-5170.

Contact GM Investor Relations

If you are looking for GM investor relations, then you can be reached by phone through 313-667-1669. You want to contact Shareholder Relations, then you can be reached by phone through 313-667-1500.

General Motors Email Format and Emails

The General Motors email format is (94.9%) for example:

GM Shareholder Relations

The mailing address for shareholder relations is Computershare Trust Company, N.A., P.O. Box 43078, Providence, RI 02940-3078. The toll free number of GM shareholder relations is 888-887-8945. If you are calling from outside the U.S., Canada or Puerto Rico, kindly call on 1-781-575-3334.

GM Financial Information

If you want to contact GM financial investor relations, then please call on 800-644-2297. The GM financial customer service phone number is 800-284-2271.

Website Help

For GM Media Online – Media Services, Media Online Website Help, please call on 1-800-875-7562 or email at For more details, please visit official website of General Motors.

You want to contact GM Media Archives, then please call on 586-932-5700 or email at

Customer Experience Centers

The contact number for Buick customer experience is 1-800-521-7300. If you are looking for mailing address, then please use  Buick Customer Assistance Center, P.O. Box 33136, Detroit, MI 48232-5136.

For Cadillac customer experience phone number, please use 1-800-333-4223. The mailing address of Cadillac customer experience is Cadillac Customer Assistance Center, P.O. Box 33169, Detroit, MI 48232-5169.

If you want to contact number for Chevrolet Customer Experience, kindly call on 1-800-222-1020. You can send a letter at Chevrolet Customer Assistance Center, P.O. Box 33136, Detroit, MI 48323-5136.

If you are looking for GMC Customer Experience contact number, then please call on 1-800-462-8782. The mailing address of GMC Customer Experience is GMC Customer Assistance Center, P.O. Box 33172, Detroit, MI 48232-5172.

The OnStar Customer Experience contact number is 1-888-466-7827 and mailing address is OnStar Subscriber Services, PO Box 1027, Warren, MI 48090-1027.

If you are looking for Holden Customer Experience phone number, then please call on 1800-033-349. The mailing address of Holden Customer Experience is Customer Assistance Centre, Holden Ltd, PO Box 1714, Melbourne, Victoria, 3001.

For Baojun Customer Experience, please call on +86 400-889-5050 or email at or send a letter to Customer Assistance Center, SAIC-GM-Wuling, 18 Hexi Road, Liuzhou, Guangxi, 545007, China this mailing address.

The contact number of Wuling Customer Experience is +86 400-889-5050. You can contact Wuling Customer Experience through email address at or mailing address Customer Assistance Center, SAIC-GM-Wuling, 18 Hexi Road, Liuzhou, Guangxi, 545007, China.

Chevrolet, Cadillac, Buick and GMC Product Communications

You can contact executive director, brand and product communications through call on 313-212-8366 or email at The mobile number of director, chevrolet communications is 313-402-4871 and email address is

If you are looking for director, cadillac and global product group communications contact number and mobile number, kindly contact on 313-820-6564 or send an email at The phone number of director, buick and GMC communications is 313-665-1743 and 313-815-3345 or contact through email at

If you are looking for mobile number of Manager, Buick and GMC Communications, kindly call at 313-618-8851 or send an email at The contact number of senior manager, Chevrolet Cars and Crossovers Communication is 313-316-9742 and email address is

If you are looking for mobile number of Senior Manager, Cadillac Communications, then please contact at 313-404-5001 or send an email at The mobile number of Manager, Chevrolet Truck Communications is 313-348-2317 and email address is

The mobile number of Manager of General Motors for Global Product Development Communications is 313-588-0091 and email address is The mobile number of Manager of General Motors for Buick and GMC West Regional Communications is 805-279-5483 and email address is

You can contactAssistant Manager of  for Chevrolet East Regional Communications through 313-702-5201 and email at

Corporate News Relations

If you are looking for media contact of Executive Director, GM Brand and Corporate Communications, kindly call on 313-665-5316 and 313-498-1735 and email at The contact number of manager of news relations for legal and corporate issues is 313-665-7252 and 586-899-7861 and email address is

The mobile number of director, Corporate News Relations, Manufacturing and Labor and Public Policy Communications is 313-407-4548 and email address is For GM Communications, please contact on 248-918-8946 and email at

The mobile number of Assistant Manager, News Relations for Broadcast, Human Resources and Sustainability is 313-319-0584 and email address is  For GM Communications, kindly contact on 313-407-2843 or send an email at

If you want to contact Coordinator, Public Policy Communications for State and Local, please call on 313-570-9484 or email at For GM Communications, please call on 313-549-0289 or send an email at

The Manager, GM Public Policy Communications for Federal Phone number is 202-775-5003 and email address is For Manager, News Relations for Recalls, Cybersecurity, Workplace Safety and Manufacturing Technology, kindly call on 313-418-2374 or email at

The contact number of Senior Manager, North American Manufacturing and Labor Relations Communications is 248-836-7731 and email email address is

Communications Operations and Corporate Giving

You can contact executive director, communications operations and corporate diving through call on 313-665-3177 and 313-658-6801 and email at

Executive Communications

The phone number and mobile number of Manager, Executive Communications are 313-665-5185 and 313-348-2112 and email address is

Advanced Technology Communications

If you want to contact Manager of Advanced Technology and Mobility, kindly call on 313-665-0910 and 313-268-9656 or email at You can contact GM Urban Mobility, Maven and Advanced Tech through call on 313-421-9024 or email at

The Assistant Manager for Electrification, Battery Technology, Fuel Cells, R&D and GM Ventures Communications mobile number is 313-495-1297 and email address is For Assistant Manager of OnStar and Connectivity Communications, kindly call on 313-515-1192 or email at

Finance and Sales

313-418-0220 is the contact number of GM Investor Relations and is an email address of GM Investor Relations. To contact Manager of Finance and Sales Communications, kindly call on 313-667-2702 or email at

For GM Finance Communications, please call on 931-398-8191 or email at The contact number of Director of GM Brand, Finance and Sales Communications is 313-549-6977 and email address is

If you want to contact Sales Communications of GM, please call on 313-269-3203 this mobile number or send an email at

Customer Care Support Numbers and Contact Address

For questions about your GM Owner Center website, kindly call on 1-866-694-6546. If you havequestions about your GM vehicle, please call on 1-800-442-6537 for Oldsmobile, 1-866-486-6376 for Hummer, 1-800-762-2737 for Pontiac, 1-800-553-6000 for Saturn, 1-800-263-7777 for Inside Canada. For questions about the My GM Rewards program, kindly call on 1-844-764-2665.

OnStar and connected services

If you have questions about your OnStar and connected services account, then please call on 1-888-4-ONSTAR (1-888-466-7827) or  connect with TTY number 1-877-248-2080, which is Toll Free.

The General Motors Company mailing address is General Motors Company, P.O. Box 33170, Detroit, MI 48232-5170. The mailing address of GM of Canada is 1908 Colonel Sam, Oshawa, Ontario, L1H 8P7, Canada, Mail Code 163-005.

The mailing address of OnStar Subscriber Services is P.O. Box 1027, Warren, MI 48090-1027, Payments, Dept #77246. The mailing address of OnStar Subscription Center is P.O. Box 77000, Detroit, MI 48277-0246.

Article last re-published on March 15, 2020.

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