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.
Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
Images (Click to enlarge)
Wednesday, August 24th, 2022 AT 8:34 AM