I had the same problem. One of dozens of problems with my 2016 Ford Transit Connect Passenger Van since I purchased (none covered under warranty, btw, even though problems began as I drove off the lot). Ford: Never again. In the meantime, I've had this issue for 2 years now and trick was to snap the driver's interior door latch a few times after turning the car off. Usually does the trick. But over time, it's taken more and more snaps to do so. I refuse to pay Ford to fix a problem arising from their cheap engineering, so researching if we need to replace the latch (as Skizzly said it worked for them). Any suggestions are welcomed. Thank you!