Contact Us

Contact Dealer

In the top right corner of your screen, choose your preferred dealer in order to see their contact details.


Certified Service Support

Access owner's manuals and view instructions and tips for your Chevrolet, Buick, GMC or Cadillac vehicle.

Account

Manage your profile and payments, capture service history, shop OnStar plans and more.


Mobile app

View your vehicle status, schedule service, contact roadside assistance, send destinations to your vehicle’s navigation system and even start or stop your engine right from the palm of your hand.


Support request

Create a support request for issues like driving and safety features, over the air software updates, Wi-Fi, or other vehicle features. An advisor will contact you in 1 business day. For online support, browse the support articles.


Call us

Give us a call and speak to one of our Customer Care Ambassadors. Our Customer Care Centre hours of operation are:

Monday to Friday: 8:00 AM to 9:00 PM ET
Saturday: 8:00 AM to 5:00 PM ET
Closed Sundays

Chevrolet, Buick, GMC Customer care centre

1-800-263-3777 (English, French)

Cadillac Customer care centre

1-888-446-2000 (English, French)

For TTY users call our Telecommunications Relay services at 711 for assistance and contact 1-800-263-3777

EV concierge

If you have a question, comment, or problem with a product or service, let us know; we will be happy to serve you.
1-833-382-4389

Roadside assistance

If you experience any problem with your GM vehicle during its warranty period, round-the-clock Roadside Assistance is available via a toll-free number from anywhere in Canada or the United States.

Chevrolet, Buick, GMC: 1-800-268-6800
Cadillac: 1-800-882-1112


Write us

Please mail any vehicle owner related comments, questions, or concerns to our customer care centre at the following address:

Customer care centre CA1-163-005

General Motors of Canada
500 Wentworth Street W
Oshawa, ON
L1J 0C5

Any other business related correspondence should be mailed to the following address:

Main mailing department CA1-002-002

General Motors of Canada
500 Wentworth Street W
Oshawa, ON
L1J 0C5