GM Service Manual Online
For 1990-2009 cars only

The front door locks use the fork bolt lock design which includes a safety interlock feature. The door is secured in a closed position when the door lock fork bolt engages the striker. Lock the doors from the inside by sliding the lock knob rearward. The door may also be locked by using the key.

Important: Do not attempt repairs in order the correct lock discrepancies. Replace the lock.

Removal Procedure

  1. Remove the trim panel. Refer to Front Side Door Trim Panel Replacement .
  2. Remove the energy absorber pad (coupe only. Refer to Front Side Door Inner Panel Lower Energy Absorber Replacement .
  3. Remove the water deflector. Refer to Front Side Door Water Deflector Replacement .
  4. Cut off the outside handle rod-to-lock clip from the lock.
  5. Use side cutters.

  6. Unscrew the remainder of the clip from the outside handle rod.
  7. Discard the clip.

  8. Object Number: 294313  Size: MH
  9. Remove the inside handle rods (3,4) from the door handle.

  10. Object Number: 294312  Size: MH
  11. Remove the lock assembly bolts (5). 
  12. Remove the lock assembly and rods.
  13. Remove the inside handle rod from the lock.
  14. Remove the locking rod from the lock.
  15. Disconnect the electrical connectors.
  16. Remove the lock (4).

Installation Procedure


    Object Number: 294313  Size: MH
  1. Install the inside handle rod (4)and locking rod (3) on the lock.
  2. Push in and rotate the rod through the clip in order to secure the rod.


    Object Number: 294312  Size: MH

    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.

  3. Install the door lock assembly bolts (5).
  4. 2.1. Start with the top bolt.
    2.2. Tighten in a clockwise direction.

    Tighten
    Tighten the door lock assembly bolts to 10 N·m (89 lb in).

  5. Connect the electrical connectors (6).

  6. Object Number: 294857  Size: SH
  7. Install the lock rod and handle rod to the door handle.
  8. Install the door handle clips (1) to the lock rod and the handle rod.

  9. Object Number: 293875  Size: SH
  10. Position the outside door handle rod in the clip in order to eliminate any free play in the outside door handle.
  11. Snap the clip cover closed over the threaded outside door handle rod.
  12. Install the water deflector. Refer to Front Side Door Water Deflector Replacement .
  13. Install the energy absorber pad (coupe only). Refer to Front Side Door Inner Panel Lower Energy Absorber Replacement
  14. Install the trim panel. Refer to Front Side Door Trim Panel Replacement .