Is anyone else having trouble getting comfortable in the 2011 GMC FWD Terrain SLT-1? We try to leave it on Auto but we are either freezing or roasting. Don't matter if it is summer or winter. I set it at 72 or sometimes 74. Seems like I have tried a lot of combinations that don't work. The upper vents on the dash put out a lot of cold air in the auto setting when we are cold and visa versa when we are warm. I have ask the dealer for help to no avail. They don't have a clue about operating the Terraine. After all, it took 4 sales and/or service people to tell me where the battery was when I bought it.