Today was contacted by a regional case manager from Honda Customer Service. All she had to say was that Honda considers the unusual noise on the 7-8 shift with PPs w/transmission coolers to be "normal". I asked for her supervisor to contact me. I was told that may or may not happen. Great customer service Honda! Meanwhile I am waiting to hear from the Center for Dispute Settlement.
Have a 2019 PP Elite. Also experiencing the same noise on the 7-8 shift. Dealer installed hitch and ATF Cooler in June. Didn't experience noise till October.
Mine did not make the noise until approx 2000 miles on the odometer. When I mentioned that to Honda Customer Service I was told that all of their components have a break-in period !!!