The only way I know to do that is removing the vent wind assembly from the door.
Which probably means removing the door glass first, then the vent assy.
There are 2 pieces to the vent wing besides the glass: the vent frame (also the front door glass channel) and the large chrome diecast piece.
There 3 screws holding the vent frame to the chrome piece, 1 at the top run channel weatherstrip, and 2 at the bottom front.
That's how the vent glass comes out. Pretty sure a glass shop can replace the lock mechanism.
Mark