Contact us
Looking for support for your current Buick or more information on a new Buick? We can help.
Owner support
Buick Support
Check out Buick Support for Owner’s Manuals, information on available support services, how-to instructions, tips and general information about the features on your vehicle. Bluetooth®
Account
Manage your profile and payments, view vehicle service and diagnostic information.
MyBuick mobile app
Use the myBuick mobile app
Get vehicle information
Interested in product information or specs for your vehicle or a new Buick?
General assistance
For questions about your Buick vehicle, new vehicles or My Account information:
For the hearing and speech impaired, please call our Telecommunication Relay service at 711 for assistance.
Monday–Saturday: 8 a.m. to 9 p.m. (EST)
Sunday: Closed
For help with adaptive equipment for persons with disabilities:
1-800-323-9935
Monday–Friday: 9 a.m. to 9 p.m. (EST)
Saturday & Sunday: Closed
Roadside Assistance
For help on the road, request Roadside Assistance
U.S. Gas-Powered Vehicles:
Canadian Gas-Powered Vehicles:
All lines available 24 hours.
Financial services
For questions about My Buick Rewards please call us at:
1-844-764-2665
Monday–Saturday: 9 a.m. to 8 p.m.
EST Sunday: Closed
For questions about the My Buick Rewards® Mastercard®, GM Business™ Mastercard®, GM Extended Family™ Mastercard®, or GM Mastercard®:
1-833-773-0988
Available 24/7
For assistance with your GM Financial account:
1-800-284-2271
Monday–Thursday: 8 a.m. to 7 p.m. (EST)
Friday: 8 a.m. to 6 p.m. (EST)
Saturday: 8 a.m. to 3 p.m. (EST)
Sunday: Closed
Contact GM Financial
Send mail
Please mail your comments, questions or concerns to one of the following Customer Assistance Centers:
In the United States:
Buick Customer Assistance Center
P.O. Box 33172
Detroit, MI 48232-5172
In Canada:
Canada - GM of Canada
1908 Colonel Sam
Oshawa, Ontario
L1H 8P7, Canada
Mail Code 163-005