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I did the reset after reading the beginning of this thread and it did make a significant difference. I think it wouldn't have last year at this time, but over the last 8 months my commute has changed significantly 4 times (work hours changed twice and my route changed twice). I went from stop-and-go traffic, to worse, to better, to relatively clear traffic at higher speeds. The hesitation and rough low-speed gear changes were starting to bug me but it hadn't occurred to me that the car was getting confused over the changes to my routine. In the few weeks preceding doing the reset, I was jumping into Sport mode more just to get the car to behave.
After the reset, the transmission is much happier and comfort mode is back to being useful. I think if there isn't a reason that the transmission learning program might have gotten a bit confused, the reset likely wouldn't do much.
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