Now that the close assist is working on this car, I have to figure out why the AC cannot be turned off for the rear seat passengers. It blows cold air (today was 75 degrees and the vent facing the back seats on the center console was blowing at 58 degrees while the front ECC was set at 70 degrees). This car does not have a dedicated rear climate control system, it just directs cold air from the front AC system. What is involved? A monovalve? Vacuum door flap stuck open? I can't find any TSBs on this problem either.