I believe the door lock itself is faulty. Part of the unlocking mechanism has worn off and is now stuck.
You need to replace the lock assy but opening the door is a messy job as the unlocking tab is almost unaccessible.
You need to get the outer door moulding out and then close the window. From there you need a long and strong screwdriver to chisel away a plastic part of the lock to release a spring inorder for the lock to open.
Get a new door lock and from there you would get an idea which area to chisel away.
I hate doing this job but have done it umpteen times.
Tuesday, October 23rd, 2018 AT 5:51 PM