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Got it, thanks! I did notice that it turned the AC on when using the preset, but for my case that wasn't entirely necessary. So then direct airflow up is what I did and seemed to work. That makes a lot more sense.
I just got my Model 3 and I noticed in the climate control settings there's 3 options for where to direct the airflow: face, feet, or up. What is the difference between direct airflow up and the defrost button (blue mode, not red)?