x3Accords

I'm on my third Accord, a 13 Accord v6 Touring, which is really great. I love all the nerdy electronic stuff on it, but can't get the messaging to work. When I go to select an account, mine isn't there. I can get it to work on our truck with no problem. Dealership is no help. Tech has same phone, a Bionic, and can get his to work fine. It's very frustrating! Any ideas?

My last Accord was an 09 EX and before that an 04 EX. Loved them all!