I have similar issues sometimes, when braking. I think in my case, its the adaptive learn botching the downshift. In my case, it feels like rather than downshifting from 3-2-1, it gets confused and and goes from 3-2-3-2-1 - or something like that. I'm certainly no expert. It feels like the transmission downshifting is assisting in the slowing of the car, then it stops briefly, and resumes again. I don't feel anything in the brake pedal.
Not sure if this is relevant to you or not, just thought I'd share. And of course I can't get it to do it when the dealer test drives it. They think I'm a lunatic.
Not sure if this is relevant to you or not, just thought I'd share. And of course I can't get it to do it when the dealer test drives it. They think I'm a lunatic.