I have a 2016 LS. I had a heating problem last month. First, too much heat and it would not adjust. Next time I started it, there was no heat and it would not adjust. The first time I had the heat dialed all the way up and the next time it was dialed all the way cold. Last summer I had a problem with the AC not getting cold enough. The common thing in all this was I had my iPhone plugged into the accessory 12v and my iPod plugged into console USB. Something messes up the temp dial when I have too many things plugged in?