GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2007 🢒 Colorado Pickup - 2WD 🢒 Body Systems 🢒 Vehicle Access 🢒 Front Side Door Lock Replacement

Power (AU3) door lock shown, manual (without AU3) door lock similar.

Removal Procedure

    Object Number: 1256431 Size: SH
  1. Remove the front door trim panel. Refer to Front Side Door Trim Panel Replacement .
  2. Remove the front door water deflector. Refer to Front Side Door Water Deflector Replacement .
  3. Remove the front inside door handle. Refer to Front Side Door Inside Handle Replacement .
  4. Remove the front door window run channel. Refer to Front Side Door Window Channel Replacement .
  5. Disconnect the lock cable retainer (1) and remove the lock cables (2) from the retainer.

    6. Object Number: 1252411 Size: SH
  6. Disconnect the outside door handle rod by releasing the retaining clip (2).
  7. Disconnect the lock cylinder rod by releasing the retaining clip (1).

    8. Object Number: 1252408 Size: SH
  8. Remove the bolt (1) retaining the door lock assembly to the inner panel, if equipped with AU3.
  9. Remove the screws retaining the door lock assembly to the door.
  10. Disconnect the electrical connector from the front door lock assembly, if equipped with AU3.
  11. Remove the door lock assembly from the door.

Installation Procedure

    Object Number: 1252408 Size: SH
  1. Install the door lock assembly to the door.
  2. Connect the electrical connector to the front door lock assembly, if equipped with AU3.

    3. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the screws retaining the door lock assembly to the door.

    4. Tighten
    Tighten the door lock screws to 7 N·m (62 lb in).

  4. Install the bolt (1) retaining the door lock assembly to the inner panel, if equipped with AU3.

    5. Tighten
    Tighten the door lock bolt (1) to 9 N·m (80 lb in).


    Object Number: 1252411 Size: SH
  5. Connect the lock cylinder rod to the lock cylinder using the retaining clip (1).
  6. Connect the outside door handle rod to the door handle using the retaining clip (2).

    7. Object Number: 1256431 Size: SH
  7. Install the lock cables (2) into the lock cable retainer (1) and connect the retainer.
  8. Install the front door window run channel. Refer to Front Side Door Window Channel Replacement .
  9. Install the front inside door handle. Refer to Front Side Door Inside Handle Replacement.
  10. Install the front door water deflector. Refer to Front Side Door Water Deflector Replacement.
  11. Install the front door trim panel. Refer to Front Side Door Trim Panel Replacement.