Why is my Reason ONE clock pulsing (flashing) yellow?

If the Reason ONE is pulsing yellow, that means that you’ve got a message or notification in your Amazon account inbox. To check out the message or notification and disable the pulsing yellow light, you may ask Alexa to read your messages or notifications to you (for example, say "Alexa, get my notifications."). You can also use the Amazon Alexa app on your smartphone to read the message or notification. When you're done, the pulsing yellow light will go away.