What is this button and what do I do to turn it off and pushing it doesn't turn it off(link provided)?

(2012-02-05 15:20:11)

1. Jordin K Says: I got my license a few days ago, and I just bought myself my first car. So far, I am just familiarizing all the buttons in my car. There's one that doesn't seem to turn off, even when I press on it. It still has the yellow light on when pressing on it. Is that normal? I think it's the defroster. Please let me know if I am wrong. I will be providing a link the picture so you know what I'm talking about. It's basically the very bottom right, with the upside down triangle and the air. Does anybody have any idea what buttons I'm suppose to push to turn it off? It always has that yellow light on. If it keeps being on, will it ruin any part of my car? The link is http://cdn.getauto.com/photos/3/24023/3c/1HGCM56684A079333-3c.jpg Please let me know, thanks.

2. greatautohelp.com Says: That is the button showing airflow is being directed to the windshield defroster and floor at the same time. Press the button to the left of it and you will notice the airflow coming from only the floor and not the defroster and floor. Just pressing that button that is lit will not turn it off, you need to choose another button.

3. greatautohelp.com Says: Yes

4. Zack Says: Try turning on the heater or ac than press that button to see if it will shut off it does to your feet and defrosts your windshield or try pressing another button while the ac/heater is on try it with both the ac and the heater