Since I got my truck going back in March, my recirc door does not work. The light turns on when I push the button on the HVAC control, but the door doesn't move. I can flip the glove box door down and push it, but as soon as I turn it on it cycles back to the non-recirculate position. Does anyone know what might be going on? Is it possible it has some sort of code stored in it that is causing a problem? The motor seems to be working. Could it possibly be a wiring problem? Anyone know how you get to the thing? Does the dash have to be disassembled?