Hi. This is my first post. I searched and didn't find an answer. I drive a 2009 Prius and suddenly the air, whether vent, heat, or a/c, comes out of the dash vents no matter whether I have those selected or just the floor or defroster selected. I had a Jeep with a similar problem and it was vacuum leak which I fixed with a $1 hose. Does anyone know the problem here and how to fix it? Thank you.
