Sometimes when I shut the driver side door on my GS it just slams against the latch but doesn't catch, as if the latch didn't lock when the door shuts. I have to slightly pull up on the outside door handle and I'll hear a click like something was stuck and then it'll shut fine. It's very annoying and pretty embarassing when you get out somewhere and shut the door and it doesn't stay shut. Any ideas?

 

take off the door panel and see whats going on