For a brand new 2015 Odyssey EXL purchased in March 2015, I've had this problem at least 4 times now. When accelerating, somewhere between 15mph and 20mph, the car jerks/lurches when switching from 1st to 2nd gear. This only happens when increasing speed, this doesn't happen when decelerating from 20mph to 15mph. When this problem happens, it happens every time I am increasing speed from 15mph to 20mph --- but goes away when I turn the engine off. I've had the technical service bulletin 15-014 software 'fix' done on the Odyssey 1.5 weeks ago, but it just had this problem again today while I was on the freeway in rush hour traffic. It didn't happen when I first started up, but started doing this in the middle of the freeway in stop and go traffic. Since this is not a reproducible problem on demand, the dealership can do nothing. And the only things Honda has done were to do S/B 12-064 (this same problem for 2002 Odysseys?) and S/B 15-014 (which covers 2014 and 2015 Odysseys). But again, I had both these software 'fixes' installed, and the problem still exists. Has anyone else seen this problem, or am I just 'lucky'? My solution to this problem is to turn off the engine at the earliest safe opportunity to reset this weird state, but this can't be good, especially on a brand new car. I haven't noticed if ECO has anything to do with it because this problem happens infrequently --- about once a month now. I drive in stop and go rush hour traffic, and slow (school) traffic a lot, which may increase the chances of this happening. I also coast alot, and notice that if the car slows to below 20mph, there seems to be a noticeable self-braking and the car slows down quite quickly. I don't know if that's normal for Hondas, but all my prior cars (Toyotas) coasted pretty smoothly until the cars ran out of steam. Maybe I should have just stuck to Toyotas, but I wanted to give Honda a try .