Yesterday the rear passenger door stopped opening from the inside or outside. At the same time the other doors when locked will only open from the inside even when the lock indicator is in the unlocked position. When I use the remote I hear the locks click and the locks will move back and fourth but in the unlocked position will only open from the interior. The key on the drivers side appears to activate an electronic switch as it causes so how would I get into the vehicle if the battery were dead?? Has anyone ever had this problem before or have any ideas??????