Ok I just bought my first car ever and I'm confused with a few of the buttons. I will give you the link to the exact buttons of my car so you know exactly what I'm talking about. Basically my defroster lights are on (bottom right) and there's a YELLOW indicator. Example on picture shows the one next to the defroster is on. Ok, so no air is blowing out because I do have the air turned off. Yet one of the lights HAVE to be on, whether defroster or the other buttons (in green light), so does one light HAVE to be on. I can't seem to shut off all the lights even when the air is not on. So my question is, is there something wrong with the buttons and why does ONE light HAVE to be on, talking specifically about the light. I don't get it, is that even suppose to be normal or something wrong with my buttons? The link is http://cdn.getauto.com/photos/3/24023/3c/1HGCM56684A079333-3c.jpg