How do I set up the Secret Knock on my doorbell system?

Use these steps to set up your Secret Knock:
1. Press the push button three times quickly.
2. Within 12 seconds of pressing the push button, press the Music button on the doorbell to select the ring for the secret knock.
3. On Series 5 and 9 models only: Within 12 seconds of pressing the push button, press the Sunlight button on the doorbell to select a halo light color.