Capital One works with GM to provide the BuyPower card or GM Extented Family Card. The GM Extended Family Card allows customers to make purchases anywhere are MasterCard is accepted and receiving earnings that are redeemable towards the full retail purchase of new vehicle from Chevrolet, GMC, Cadillac and Buick. The BuyPower card is for the general public and the GM Extended Family card is designed for a current GM Employee or Supplier although their family and friends can also apply for a GM Extended Family card. NOTE: please visit the site directly to verify the details and obtain more information.

If you are a current Capital One GMCARD or BuyPower customer you will want access the Capital One GMCARD login section frequently. You will be able to view your Earnings statement, private offers, manage your profile and more. We have provided a quick “how to” activation guide below for you to access the Capital One GMCARD Sign In landing page online.

how to access- Capital One GMCARD Online Login

what you need:

  • internet access
  • personal information
  • current username and password

what to do to access the Capital One GMCARD Sign In:

  • visit:
  • under the “Manage your Earnings” page click on the green “MANAGE YOUR EARNINGS” button
  • type in and provide your Earnings user name in the space provided
  • type in and provide your Earnings password in the space provided
  • click on the green “LOG IN” button
  • begin managing your GMCARD online