| Sr No. | Service | Contact No. |
|---|---|---|
| General Assistance | ||
| 1 | For questions about your GMC vehicle, new vehicles or my account information: | 1-800-462-8782 |
| 2 | For the hearing and speech impaired, please call our Telecommunication Relay service at for assistance: | 711 Mon-Sat: 8am-9pm (EST) Sunday: Closed |
| 3 | For help with adaptive equipment for persons with disabilities: | 1-800-323-9935 |
| Roadside Assistance | ||
| 4 | Gas Powered Vehicles: | 1-888-881-3302 |
| 5 | Canadian Gas-Powered Vehicles: | 1-800-268-6800 |
| 6 | Electric Vehicles (EV): | 1-844-515-1418 |
| 7 | Canadian Electric Vehicles (EV): | 1-844-637-1756 |
| Finance Service | ||
| 8 | For questions about My GMC Rewards please call us at: | 1-844-764-2665
Mon-Sat 9am-8pm (EST) Sunday: Closed |
| 9 | For assistance with your GM Financial account: | 1-800-284-2271 Mon-Thu: 8am-7pm (EST) Fri: 8am-6pm (EST) Sat: 8am-3pm (EST) Sunday: Closed |
| 10 | National Highway Traffic Safety Administration (NHTSA) | 888-327-423 |
| Sr No. | Country | Address |
|---|---|---|
| 1 | United States | GMC Customer Assistance Center P.O. Box 33172 Detroit, MI 48232-5172 |
| 2 | Canada | Canada - GM of Canada 1908 Colonel Sam Oshawa, Ontario L1H 8P7, Canada Mail Code 163-005 |