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

1. Remove the trim panel. Refer to Door Trim Panel Replacement .
2. Use a sharp bladed tool in order to separate the water deflector at the perforations. Refer to Front Side Door Water Deflector Replacement .
3. Remove the access hole plug (1).
4. Remove the lock rod  from the door handle.
5. Remove the nuts from the door handle (4).



6. Remove the door handle from the door (2).
7. Remove the lock rod from the lock cylinder (3).
8. Remove the lock cylinder retainer.
9. Remove the lock cylinder and the gasket (5) from the door.

Important: Install new plastic retainer clips whenever the lock rods are removed.

1. Install the gasket (5) and the lock cylinder to the door.
2. Install the lock cylinder retainer .
3. Install the lock rod to the lock cylinder.



4. Install the handle to the door (2).

Notice: Refer to Fastener Notice in the Preface section.

5. Install the nuts to the door handle (4).

Tighten
Tighten the nuts to the door handle to 6 N·m (53 lb in).

6. Install the door handle lock rod to the handle.
7. Install the access hole plug (1).
8. Install the water deflector. Refer to Front Side Door Water Deflector Replacement .
9. Install the trim panel. Refer to Door Trim Panel Replacement .