What’s the best way to get the transmission tuned?

Ha! I don't know there's much of a difference when operating normally. I'm guessing if I was really pushing it I might then start seeing a difference.

 

Post 25 has the PDF of the TSB. I'd use the exact verbage and if the dealership balks, do as I did and call corporate. If you don't tow you probably don't need it. What remains to be found are the unseen or untold consequences of this update.

 

I don't tow much if any for that matter. I am just paranoid. There is always a good reason behind a TCB and I got burned in the Honda world with a $6000 bill that Honda HQ wouldn't take. I had to fight them to pay 80% of it. Long story.

My philosophy is to do every Recall or TCB even if you don't manifest the problem / symptom that needs fixing. Down the road I may be at 140K miles with warranty expired and then the TCB problem hits me outta nowhere and is not covered That's what happened to my Honda