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Hope the video loads here. Driver front door, shut and will not close completely. Push the door and the latch clicks, pull on the door or turn right while driving and the body roll causes the latch to come half open. Troubleshooting steps, realign latch to check that it is 90 degrees opposed to the striker, that is to say, the throat of the latch is in line with the striker. Checked the striker was in proper position and tightened down torx screws on both to ensure it was not just a knobby interface. Issue persists.
Replace the door latch. Not sure why you're thinking it couldn't be the latch. They do fail.
-- Dave
Didnt think that I made the case that it couldn't be the latch. Troubleshooting and asking questions are free and avoid buying unnecessary parts when you aren't educated on what you are handling. Sure as heck if I bought a latch and posted about installing it someone else would come out and ask if I did "X" before buying a new latch. It is a nuisance and not a major issue so I have time to ask before spending is all I am stabbing at here.