Main Navigation
Skip to main content

Select your store

You can change your store in this dialog and have the carmax experience update accordingly.

Shop Sell/Trade Finance Research
More
    1. Help Center
    2. Security
    3. What is an authenticator app?

    What is an authenticator app?

    An authenticator app is an app you can download on your smartphone that generates secure, two-step authentication codes for your account.

    Related questions

    What is two-step authentication?
    I sold or lost my phone and cannot complete two-step authentication anymore. What should I do?
    My phone number is correct, but I'm not receiving the two-step authentication SMS texts. What can I do?

    Other topics

    Warranties & More
    Skye
    Making Payments
    Selling a Car
    Financing
    Seeing a Car
    Buying a Car
    Finding a Car
    Safety Recalls

    Need more help?

    Visit
    • Browse by category
    • View all inventory
    • Find a store
    • Get an online offer
    • How it works
    • Offer Watch
    • Get pre-qualified
    • How it works
    • CarMax Auto Finance
    • About CarMax
    • Contact us
    • Social responsibility
    • CarMax Foundation
    • Media center
    • Supplier inclusion
    • Investor relations
    • Search jobs
    • Service & repairs
    • FAQ & support
    • Why CarMax
    • Buying online
    • Car research & advice
    • Guide to EVs
    • Warranties and MaxCare®
    By using carmax.com, you consent to the monitoring and storing of your interactions with the website, including with a CarMax vendor, for use in improving and personalizing our services. See our Privacy Policy for details.
    Privacy Policy • Do Not Sell or Share My Information • Financial Privacy Policy • Interest-Based Ads • Terms of Use • Responsible Disclosure • CarMax Recall Policy • Social Community Guidelines • CA Supply Chain Transparency • Accessibility •
    Copyright © 2025 CarMax Enterprise Services, LLC