climate control in winter

JohnsZ

I have been pondering this question ever since I bought my 370Z a year ago and finally have gotten up the courage at the risk of asking a stupid question. Throwing caution to the wind, here goes; Why does the little yellow light in the center of the temp dial come on automatically denoting that the AC is on when ever I turn on the heat temperature setting? It's mid winter here in CT and I want only heat, not the AC unless of course I need the defroster. I always have to push the button to turn the AC off when all I want is heat. Now....be kind to your Z brethren!!!