2016 transmission hard shift

[2021 LC200]

I just had the TSB reflash and I find the 1-2 upshift on my 2016 with 135K to be slightly better, but not 100% gone. It's only more aggressive between 2500-3000 rpms. Anything below is as smooth as I can ask and anything above 3K is flawless. I am pretty sure the fluid is original and at this point I am not sure if I leave it or drain some... I was going to give the transmission a few hundred miles to see how it adapts.

Have you tried using ECT PWR button? I found this on my 2021 purchased from new a better mode for getting the gearbox to shift smoother between 1 and 2 (however counter intuitive the use of that button is to make it go smoother…)

 

[pdosescu]

Have you tried using ECT PWR button? I found this on my 2021 purchased from new a better mode for getting the gearbox to shift smoother between 1 and 2 (however counter intuitive the use of that button is to make it go smoother)

Yes! I drive with it on 100% of the time. I also find it smoother this way.

I believe the above post about shift from 4.79 to 2.81 between first to second gear is spot on. It'll always be a little more aggressive.