I found the solution, thankfully it was an easy one,
after removing the mode selector, I saw the control cable loose,
putting it back in the right position fixed my problem.

no parts needed.

Thanks to anybody that tried to think about it...

Hi, I have a 2009 Pontiac vibe base model, lately the "mode control" know has become rough to turn (and change the direction of the air), this morning the know become loose and will not change the direction at all. i am guessing that i will need to change the know (as if it is loose it is ...