Are you sure the interior button wasn't set to the "OFF" position, as opposed to "3/4" or "FULL"?tmoreau said:This started yesterday on our new 1 month old SLE-2 2011 Terrain, I would be pressing the button but it wouldnt respond at all. I'll be taking it to the dealer on Monday to get it checked out and one of my cigarette plugins near the usb isnt working either. However, that may be a blown fuse.