My car has a physical button that I press to defrost the window. I'm guessing this triggers some software to turn on the defrosting fans. Is this the same thing

My car has a physical button that I press to defrost the window. I'm guessing this triggers some software to turn on the defrosting fans. Is this the same thing in the Tesla except it's a digital button? I can't read the article but I've rarely seen defrosting being described as software. Wondering if this is something different.