2012 Coachmen Mirada. I've owned for a little over two years now. It's a translucent blue toggle that lights up when pushed up and on. Nothing in the rig is inoperable when it is not on. Nothing seems to begin working when it is toggled on. I have googled, looked in the owners manual...nothing. I assume (maybe incorrectly) that it has something to do with the propane system? Since the generator toggle is also blue and translucent.
Any ideas? It's driving me bananas!