I tried this afternoon to open my H3 via the remote control entry, key fob number 1 did not work, so I tried key fob number 2, that didn't work, seems odd both batteries dead at the same time. Unlocked the door the old way, got in and read the manual. No help there, but I found that the remotes worked when the door was opened.
I moved the H3 out of the way, which was my original task in the first place. Parked it, and was gone for several hours, where as upon my return, I hit the fob and the door unlocked.
Now it works.

Can any one shed any light on this? I was a little taken back. I thought I was going to disconnect the battery and reset everything and try again, that was not needed.