AC - Auto Recirculation

[Trewithy]

I'm sure that I read somewhere that when using the AC / ventilation system in the Auto position it should automatically select Reciric if the conditions require it.  Well this is the third summer I have owned my Corolla , and at the present time it is hot, but I have never noticed the Recirc button illuminated.  Can anyone clarify?

[TonyHSD]

This is correct. 
What are your interior temperature settings? 
If you play with them and set them lower  or lowest and it is hot in the car and hot outside the auto recirculating should activate. If it doesn’t means that hvac settings are changed via obd scan tool or via the car infotainment screen.  Carista can scan and check that. 

[Trewithy]

I have the temp set to 20 90% of the time and let it  do its own thing in auto.  As far as I am aware nothing has been change since the car was new.  I will have a play with it next time I am out.