Just bought a 2020 Acadia. Its the fall in Michigan right now and everyone is burning their leaves. So the standard thing to do when driving anywhere is to use the recirculate button to avoid the sink in your cabin. I was surprised to find my button didn't work. It lights up like it's working, and even the LCD screen shows it's been pressed. So I took it to the dealer for warranty. The service guy tells me that the technician tells him that it is working. And that recirculate only works when when the air delivery is coming out the dash. Even though the light is on for all other air delivery mode settings (i.e. feet, face, feet & face, feet & defrost) it only is suppose to work when it's blowing out the dash on my face. How does everyone else's Acadia work? The same way? Is this guy full of BS or is he right and this is a ridiculous design flaw?