CONTACT US

Looking for support for your current GMC or more information on a new GMC? We can help.


OWNER SUPPORT

GMC SUPPORT

Owner’s Manuals, information on available support services, and how-to instructions, tips and general information about the features on your vehicle. Bluetooth®, OnStar®, and your GMC Infotainment System are among the many features covered.

ACCOUNT

Manage your profile and payments, view vehicle service and diagnostic information.

MYGMC APP

Use the myGMC app, available on Apple and Android, to quickly schedule vehicle services, access owner’s manuals, use remote start, request Roadside Assistance and more.


GET VEHICLE INFORMATION

Interested in product information or specs for your vehicle or a new GMC?


MESSAGE US

For questions and general feedback, message with our helpful GMC Specialists during the hours below.

Monday – Sunday: 8 a.m. to 11 p.m. (EST)

Virtual Assistant available 24 hours.

MESSAGE US

CALL US

The following GMC call centers are available to help with questions and general feedback during the hours listed below.

GENERAL ASSISTANCE

For questions about your GMC 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: 8 a.m. to 8 p.m. (EST)
Saturday & Sunday: Closed


ROADSIDE ASSISTANCE

For help on the road, request Roadside Assistance via the myGMC app or call us using the appropriate number below:

Gas-Powered Vehicles:
1-888-881-3302

Electric Vehicles (EV):
1-844-515-1418

Canadian Gas-Powered Vehicles:
1-800-268-6800

Canadian Electric Vehicles (EV):
1-844-637-1756

All lines available 24 hours.


FINANCIAL SERVICES

For questions about My GMC Rewards and My GMC Rewards Card please call us at:

1-844-764-2665
Monday – Saturday: 9 a.m. to 8 p.m. ET
Sunday: Closed

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


GENERAL ASSISTANCE

GENERAL ASSISTANCE

For questions about your GMC 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: 8 a.m. to 8 p.m. (EST)
Saturday & Sunday: Closed


ROADSIDE ASSISTANCE

ROADSIDE ASSISTANCE

For help on the road, request Roadside Assistance via the myGMC app or call us using the appropriate number below:

Gas-Powered Vehicles:
1-888-881-3302

Electric Vehicles (EV):
1-844-515-1418

Canadian Gas-Powered Vehicles:
1-800-268-6800

Canadian Electric Vehicles (EV):
1-844-637-1756

All lines available 24 hours.


FINANCIAL SERVICES

FINANCIAL SERVICES

For questions about My GMC Rewards and My GMC Rewards Card please call us at:

1-844-764-2665
Monday – Saturday: 9 a.m. to 8 p.m. ET
Sunday: Closed

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:
GMC 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

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