2016 Toyota Prius – Random “beep beep” sound with no warning on the dashboard

I recently bought a 2016 Toyota Prius with all available features. Today is my 7th day using the car and I drive it regularly.

However, since yesterday, I’ve noticed something strange.


While driving, the car makes a “beep beep” sound twice and then it stops.

The issue is:

• No warning, message, or icon appears on the dashboard
• The sound happens at random intervals
• Sometimes it happens, sometimes it doesn’t
• I can’t figure out the reason

Has anyone experienced a similar issue?

Do you know what could be causing this sound?