Blow hot air out of the passenger side?

I am sorry to hear that, so for the passenger side blend door actuator replacement the HVAC plenum must be removed. Here is the location, but you might want to try doing a system reset (reboot) here is a guide to show you how:

https://www.2carpros.com/articles/step-by-step-guide-to-reset-your-cars-hvac-system-an-essential-for-every

Here is the location of the actuator in case you want to try and change it out. Check out the images (below). Please let us know what happens. Let me know if you need help.