The knob to switch vent directions doesn't work, the only vent air comes out from is the dash board, sorry its kinda hard to explain but i really need to get it fixed coz my defrosters dont work and the other night i was driving half blind on the highway, i think thats kinda dangerous, any ideas how i should fix it or take it to a shop. thnx. For ppl. wanting car fax reports, sorry i cant provide that service anymo my account just expired, u should def. purchase a monthly unlimited, its worth it.