[EOT 4 Life]

Replaced my pressure switch today after getting some harsh 3rd gear shifting once in a while, mostly in cold weather during first drive of the day. I had the same issue years ago and a PCM flash seemed to have fixed it, but recently I have had it happen every once in a while. Hopefully this is the fix for my issue.

 

[EOT 4 Life]

I take it you all tried a 3X drain and fill prior to change it the sensors? Nearly all subtle shift issues I’ve seen tend to be fluid related.

I started replacing the OEM fluid with Amsoil at 16,000 miles, and did frequent subsequent changes as well:
2015 Transmission Drain and Fill | Honda Odyssey Forum (odyclub.com)