How To Activate Sears Card

To activate your Sears Mastercard online:

You can only the Sears MasterCard at a member of the Sears Holding Company:

  • Sears/
  • Kmart/
  • Sears Essentials
  • Sears Grand
  • Sears Hardware
  • Sears Auto Centers
  • Sears Hometown Stores.

To activate your Sears card over the phone:

  • Call Citibank’s toll-free number at 1 (800) 589-7327.
  • Follow the voice prompts to activate your MasterCard.