Hello, I'm Danny.
It sounds like you might be having a problem with the air door - blend door actuator. It is a small electric motor that opens up the duct doors to route air throughout the various ducts. Here is a tutorial showing what is involved for its replacement:
https://www.2carpros.com/articles/replace-blend-door-motor
I've attached picture steps below on replacement for your car. Hope this helps and thanks for using 2CarPros.
Images (Click to make bigger)
Friday, November 27th, 2020 AT 12:01 PM