Hello,
The door latch itself has gone bad just be thankful you can still open the door it gets messy when you cannot. Order a new latch from the dealer then install it by removing the three or four mounting bolts in the door jam. Below are some guides to help.
Let us know what happens and please upload pictures or videos of the problem.
Cheers, Ken
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Sunday, January 7th, 2018 AT 8:29 PM