I need to test this in my 4runner but I dont drive much. In my Lexus it does as you describe. Its weird because it will be "Off" and if its slightly chilly out it will actually heat up the air!. Pushing the recyle/inside air but turned it off. You may want to try that.
I have a 2020 and want to hardwire my radar detector with mirror tap. Hasn’t anyone tried this? Wondering if there was a guide as I am not sure the the safety camera that the 2020s change how you would install it. Any input appreciated. Thanks!