At GM Our Customers are Important to Us

That's why we're here to answer any of your questions, anytime. Below you will find our contact information.

Your privacy is important to us. If you would like to review the General Motors of Canada Company privacy policy, please visit

General Motors Contact Information

General Motors of Canada Company
1908 Colonel Sam Drive,
Oshawa (Ontario), Canada L1H 8P7
1 800 GM DRIVE (1-800-463-7483)

OnStar Subscriber Services
P.O. Box 455,
Station A, Windsor, ON N9A 6L7
1.888.4.ONSTAR (1.888.466.7827)

General Motors LLC
300 Renaissance Center
P.O. Box 300
Detroit MI. 48265-3000