AC vents stuck on one position?

That car doesn't use actuators it uses cables from the control head to the doors, that is why you cannot find them. It uses the same controls as the Corolla that it's based on.
Part numbers for the cables are 55906 and 55908A if service info is correct. To get to them you have to remove the instrument panel and then the HVAC control head. The cables will be attached to the controller. It could be a broken cable or another piece of the system as most of it is plastic.

Hey Steve,

Thanks for your reply. I checked the cables from the unit and noticed that they are connected to a mode door actuator (in the image above the temperature actuator).

Your guess about the cable was right! After following the cable and wiggling it a bit, I was able to see with a multimeter that the buttons were working again. After a small repair, everything is now functioning properly.

Thanks a lot!

For anyone experiencing similar issues: check the cables behind the unit, just like Steve suggested.

Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.