Any update on your issue? I got a full flush by Hyundai and they put in a conditioner with it that is supposed to help sustain the transmission and its life. Interestingly enough, on the way home, I experienced a lot of weird revs in the car, not slipping but definitely reving between different shifts. Now, it has been a few days. The issue seems to happen a lot less and not as bad. However, when i get into stop-go traffic, then I experience it more often. The more I pay attention to it, the more I wonder if I am just overanalyzing it and being OCD, which would make sense, as I have not driven an automatic in years. However, I am leaning towards it being our adaptive tranmission computer.All 3 of us are outside the range, but maybe they they determined the date range incorrectly, and we still need the update. I wish there was a way to have them flash the latest level, to ensure the software is correct.