I am having issues with my HVAC controls and not being able to change modes. It is permanently on vent mode and with the cooler temps now, I am having trouble every morning since I cant get it to defroster mode.

Anyone have this issue with not being able to change modes?? Any advice appreciated.

 

I'm having the same issue. Do a search on "servo or air mix motor" That would be a good start.

Bax

 

Sounds similar to mine. Bad servo had to be replaced by dealer. I think there are some fixes described in this forum somewhere, though.