Why do I have to slam the door to unlock the other doors?
Mine is a 2000 ford focus, has no remote key thingy. When I unlock the driver's door the rest of the doors won't unlock unless I slam the driver's door hard, sometimes I have to do it a couple of times. This happens especially in damp / humid or cold weather. Help? :| I don't wanna keep slamming the door to my poor ford focus.