dashboard

I have a 2017 outback (Australian, so right hand drive). Next to the left front seat heating button are 2 small buttons, one above the other one with a + the other a -. I can't see any reference to them in the manual. Anyone know what they do?

Hi all, I looked around with the search but didn't find the origin of this issue I'm having. My car is an Outback 2006 2.5L When I start and I stop the car, there is a muffled sound coming from the dashboard. Here is a record of what it sounds like: Would you happen to know where it is...