I had the TSB performed on my 2015 eight speed tranny with the prescribed Mobile 1Blue Stripe tranny fluid, three flushes, drive, reprogram, etc. worked ok for awhile but gradually started making those low speed/gears hard shifts again. But, problem wasn’t as bad as originally I must say. However, I now do a little trick that I got off this thread awhile back, which is; Every few days When I make my first drive of the day I start off in Manual mode and run the tranny through the gears up and down, usually 1st, 2nd, 3rd. I have to go through three or four stop signs to get to the highway. Anyway, tranny will make low speed shifts smoothly for a few days. Personally, I think the low speed hard shift problem could probably be handled by reprogramming the tranny to start off in 2nd gear unless in Tow Mode. Some high end sports cars have programmed their trannys to take off in 2nd gear unless in Sport Mode.
Btw, did some research on a comment upstream that there’s a class action suit underway. From what I’ve read it’s a dead issue. Ain’t nothing gonna happen. ?...