Just post in transmissions for the traction control questions as I'm about sure that's nothing to do with the side defrosts. I've owned a few that have those and they do help quite a bit. Do you feel anything at all coming out of them. Many I've noticed aren't too aggressive. It would be very strange for both side to be just a hose peice that disconnected at each side??
This year has thrown some extra cold at us with the ice factor. Long before many cars had those I would just open the window a bit which directs heated air towards the opening so I wouldn't notice it too much in my own vehicles as that just plain works.
If they are in fact doing nothing I would need a diagram that I don't have to guess at why for this for just the ductwork as I really doubt they are electrically or vacuum motor controlled,
T
Tom Greenleaf - MetroWest Boston - USA
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