2-Step verification can be set up via your account's security settings. See the linked pages below for help with each 2 step verification type offered by Coinbase.
Types of 2-Step Verification
Security Key - Most Secure
Duo and Google Authenticator (TOTP) - Secure
Coinbase Security Prompt - Secure
SMS/Text - Least Secure
If you're having an issue with 2-step verification, learn how to troubleshoot 2-step verification issues by reviewing the specific 2-step verification articles above. You will find information on what they are, why to use them, how to add them to your account, as well as troubleshooting steps.