Sounds like a computer thing. Does it have a Computer control box? Take it to someone who can hook it up to a reader and go from there.
Good luck
Good for you if you have good a good experience with honda. I only give a manufacturer ONE chance to make a good impression, and honda has most definitly NOT done it.
All you have to do is google honda accord/odesssy transmission problems and you will find a lot of people in a similar position that I am in.