I'm pretty sure the air vents they put on seals to allow air to escape are generally the fairly small holes you see around the seal every couple inches or so. Not only do i find it hard to believe that it'd be a vent when it's not like the seals are subject to incredible amounts of pressure to CAUSE a need for massive amounts of air to be able to escape unrestricted, but if it IS a manufactured air vent, it's one of the crappiest finishing jobs i've ever seen. It LOOKS more "torn away" than "precision cut".Shut this thread down. As suspected these are air vents. I have them on my car as well, they are also in the front of the door where it connects to the frame.