Door locks; can't lock rear door
 

Got in my H2 today, pressed the door lock button, and only the front doors locked. The rear seats, nor the back door locked. I then put the key in the ignition and got a RFA battery low message on my dashboard cluster---so, I replace the battery in the key fob--and, locks are still not working.

The key fob will not lock the rear nor back doors; just the front doors.

Also, when I hit the door lock button inside by the back door, it sounded like it clicked--but, when I went around to check it--the back door was still unlocked--so, right now, i cannot lock my back door...