GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 DeVille 🢒 Body and Accessories 🢒 Doors 🢒 Rear Side Door Latch Replacement

Removal Procedure
  1. Place the window in the full up position.
  2. Remove the door trim panel. Refer to Rear Side Door Trim Panel Replacement .
  3. Remove the door module. Refer to Door Control Module Replacement .
  4. Remove the water deflector. Refer to Rear Side Door Water Deflector Replacement .

    5. Object Number: 554977 Size: SH
  5. Squeeze the tabs together at the center pivot of the bell crank and pull outward.

    6. Object Number: 554990 Size: SH
  6. Remove the inside handle assembly (1) in the following order:
    7. 6.1. Carefully pry the front of the assembly (1) rearward.
    6.2. Pull the front of the assembly (1) outward.
    6.3. Slide the assembly (1) forward to remove.
  7. Disconnect the lock and handle rods from the clip guides (2).

    8. Object Number: 507065 Size: SH
  8. Through the rear access hole of the inner panel, disconnect the outside door handle rod (1) from the door latch retainer clip (2).

    9. Object Number: 555001 Size: SH
  9. Carefully pry out the child security lock.

    10. Object Number: 524124 Size: SH
  10. Remove the fasteners (6) from the door latch.
  11. Remove the door latch assembly (5) from the door through the access hole of the inner panel.
  12. Disconnect the electrical connectors (2) from the door latch.
  13. Disconnect the inside handle rod (3) from the door latch.
  14. Disconnect the inside lock rod (4) from the door latch.

Installation Procedure

    Object Number: 524124 Size: SH
  1. Connect the inside lock rod (4) to the door latch.
  2. Connect the inside handle rod (3) to the door latch.
  3. Connect the electrical connectors (2) to the door latch.
  4. Install the door latch assembly (5) to the door through the access hole of the inner panel.

    5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  5. Install the fasteners (6) to the door latch.

    6. Tighten
    Tighten the fasteners to 10 N·m (89 lb in).


    Object Number: 555001 Size: SH
  6. Align the pin on the child security lock with the opening on the lock mechanism.
  7. Press the child security lock inwards until it fully engages the inner panel.

    8. Object Number: 105412 Size: SH
  8. Connect the outside door handle rod to the latch in the following order:
    9. 8.1. Insert the rod (1) into the retainer clip (2) on the door latch assembly.
    8.2. Close the clip (2).

    Object Number: 556270 Size: SH

    Important: Make sure the trim panel harness is located between both the lock and handle rods.

  9. Position the rear of the inside handle assembly (1) into the opening of the inner panel.
  10. Press the front of the assembly (1) inward until it fully engages the inner panel.
  11. Connect the lock and handle rods to the clip guides (2).

    12. Object Number: 556268 Size: SH
  12. Position the bell crank into the opening of the inner panel.
  13. Press the bell crank inward until it fully engages the inner panel.

    14. Important: Check for proper operation of the door handles and locking mechanism before installing the water deflector.

  14. Install the water deflector. Refer to Rear Side Door Water Deflector Replacement .
  15. Install the door module. Refer to Door Control Module Replacement .
  16. Install the door trim panel. Refer to Rear Side Door Trim Panel Replacement .