We have a thread for '13 and '14s (viewtopic.php?f=30&t=18269) and one for '16 and '17 Leafs w/30 kWh batteries (viewtopic.php?f=30&t=23606).
I did some digging and couldn't find an equivalent for '15s.
I stumbled across viewtopic.php?f=31&t=17459&hilit=2015+capacity. I know there's at least 1 '15 w/a capacity bar gone, GerryAZ in Phoenix: viewtopic.php?f=6&t=24352&p=501220&hilit=11+bar#p501220.
Use this thread to post if you've lost capacity bars on your '15. Would be helpful to indicate the AHr, SOH and Hx values when it happened along w/your general location and previous location of the vehicle (e.g. used car from somewhere else).
I figure the 24 kWh '16 S should have the same battery. This is NOT the place to post about 30 kWh '16 "S 30" capacity losses.
If this is a dupe of another thread, let me know.