My son is bringing his 2004 Focus wagon home this weekend and I want to be prepared. We haven't owned it long and possibly the tailgate didn't lock when we purchased it. All the doors lock and unlock with the remote but not the tailgate, not even with the key in the lock. Before I tear it apart only to learn after the fact it was a setting or something, what have others found regarding this? Or do I simply have to remove the panel and explore? I don't know if he can hear the lock motor trying to lock it or not, he hasn't had time to tell me. Is there an override [like child-proof locks on the rear doors?] that is set incorrectly or do I need to program the remote differently?