The remote windows down function in my 2017 Ridgeline was initially a totally undocumented feature. One day I went out after a rain shower and found all my windows half way down. My first reaction was a computer glitch, but after thinking about it a few minutes I seemed to remembered that our other Honda car, an Accord from 25 years earlier, allowed us to put the windows down when we got close enough to use the key fob. I scoured my owners manual looking for the instructions but there was no mention anywhere of key fob operation of windows. Google to the rescue, however, and there was a REVISED owners manual issued a few months after my truck was built that included the instructions. Had I not owned a Honda previously I wouldn't have had a clue what was going on.