Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Important: If door lock cylinders require replacement for any reason, apply a coating of lubricant GM P/N 12346241 or equivalent to the inside of the lock case and the cylinder keyway prior to assembling and installing the cylinder.

Remove the trim panel. Refer to TRIM PANEL REPLACEMENT - DOOR .
Remove the water deflector. Refer to WATER DEFLECTOR REPLACEMENT - SLIDING DOOR .
Remove the lock rod from the lock cylinder (3).
Remove the lock rod retainer (1).
Remove the lock cylinder and gasket (2).

Fig 1: Removing Lock Cylinder And Gasket - Sliding Door
Courtesy of GENERAL MOTORS CORP.