Agree with folks that the first diff change is supposed to happen later at 24K miles. That said, I did mine at 600 miles with the break-in oil change (literally when I got home from buying it new at Honda of Russellville in Arkansas). So far it has not burst into flames or otherwise objected to that error from 2014.

I'm really, really surprised/impressed that this has not yet degraded into a discussion of what TYPE of oil we each prefer.