I can't speak for others, but my 2012 blows COLD air, even after 8000 miles. It seems to have some type of electric heat pump in the bottom and back of each front seat. I just ran a test: engine running, climate control off, seat cooling on max. COLD air was coming out of the seating surface and HOT air was coming out of the exhaust of both blowers. There is definitely some form of active cooling going on.
The seat bottom blower exhausts forward, see photo below looking backward from the front, it is the rectangular opening with the copper visible inside. Mine is exhausting enough heat that I was able to easily locate the exhaust by reaching my hand in from the front and following the heat.
The seat back blower exhausts down, see photo below with the seat back unzipped, it is the wide black duct routed down from the blower. Sorry for the blurry photo, there is a better one posted by someone else earlier in this thread. Even with the seat cover in place I could feel heat emanating from the lower left corner of the seat back. The entire exhaust tube gets quite warm to the touch.
I can confirm that there are two filters, as someone posted earlier. I was unaware of the one in the seat back until that post. Both of mine are still perfectly clean after 8000 miles with a lot of desert driving (windows closed and I keep the interior clean).
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