GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2002 🢒 Eldorado 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Door Lock Cylinder Replacement

Removal Procedure

    Caution: Disconnect the power window switch when working inside the driver door. When operated, the Express Up/Down Feature allows the door window to move very quickly, without stopping, which could cause personal injury.

  1. Ensure that the window is in the full-up position.
  2. Remove the trim panel. Refer to Door Trim Panel Replacement .
  3. Remove the water deflector. Refer to Door Water Deflector Replacement

    4. Object Number: 319930 Size: SH
  4. Remove the outside door handle. Refer to Door Outside Handle Replacement
  5. Remove the nut (4) retaining the lock cylinder to the handle (1).
  6. Remove the lock cylinder (5) from the door handle (1).

Installation Procedure

    Object Number: 319930 Size: SH
  1. Install the lock cylinder (5) onto the door handle (1).

    2. 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.

  2. Install the nut (4) in order to retain the lock cylinder (5) to the handle (1).

    3. Tighten
    Tighten the fastener to 9 N·m (80 lb in).

  3. Install the outside door handle. Refer to Door Outside Handle Replacement .
  4. Install the water deflector. Refer to Door Water Deflector Replacement .
  5. Install the trim panel. Refer to Door Trim Panel Replacement .