It is the one that is on top of the HVAC unit, but I have seen people get at the actuator through the glove box for some of the screws, and one screw by the accelerator pedal. Here is a guide to help you see what you are in for and the instructions to replace the left side actuator in the images below.
https://www.2carpros.com/articles/replace-blend-door-motor
Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
Images (Click to make bigger)
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Wednesday, August 24th, 2022 AT 8:34 AM