the car door doesnt close all the way or hatch door ? i know there is what we call the otis bump it is accumulated dirt that builds up on the car door and hatch door track...if you run your hand on the track under the door lock you will feel a little bump scrape it off and you will be fine.....the other car might be shutting down cause the other car is not switching over the hall buttons sounds like your cross connection are cross connected !