I care, I like to know how things work/break. According to the dealer I just spoke with yesterday it uses fans, not AC. The fans simply blow air up through the perforated leather. I would assume, that if you have your lower AC vents on, it would also then pick up some of that cooled air and pass it through the seat as well. Not sure if the fans are encased within the seat itself but to X5FX's point, moving air through it regardless if it's cooled or not, will reduce the amount of trapped heat.