GM credit cards are issued by Capital One, and you have multiple options to make your monthly GM Card payment:
- Online: Go to to sign in for either the consumer GM Card (BuyPower Card) or business GM Card account and make your payment.
- By Mail: Capital One has different payment addresses for different credit cards. to find the correct address using the first 6 digits of your credit card number.
- By Phone: The GM Card / Capital One customer service phone number for payments is 1-888-316-2390. (Business GM Card customers, call 1-800-446-5347.)