GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Front Side Door Latch Replacement

Removal Procedure
  1. Close the window to the full up position.
  2. Remove the door trim panel. Refer to Front Side Door Trim Panel Replacement.
  3. Remove the rear half of the water deflector. Refer to Front Side Door Water Deflector Replacement.

    4. Object Number: 737979 Size: SH
  4. Disconnect the lock rod retaining clip from the outside door handle.
  5. Remove the lock rod from the outside door handle.
  6. Disconnect the lock cylinder rod from the cylinder, if equipped.
  7. Remove the inside door handle. Refer to Door Inside Handle Replacement.

    8. Object Number: 737982 Size: SH
  8. Remove the 3 screws that retain the latch to the door.
  9. Position the latch in order to disconnect the electrical connectors as needed.
  10. Remove the latch from the door.

    11. Object Number: 737980 Size: SH
  11. Noting the position of the inside handle lock rods, remove the inside handle lock rods from the latch.
  12. Noting the position of the outside handle lock rods, remove the outside handle lock rods from the latch.
  13. Remove the actuator from latch. Refer to Front Side Door Lock Actuator Replacement.

Installation Procedure
  1. Install the actuator to the latch. Refer to Front Side Door Lock Actuator Replacement.

    2. Object Number: 737980 Size: SH
  2. Install the outside handle lock rods to the latch as previously noted.
  3. Install the inside handle lock rods to the latch as previously noted.

    4. Object Number: 737982 Size: SH
  4. Position the latch in order to connect the electrical connectors as needed.
  5. Install the latch to the door.

    6. Caution: Refer to Fastener Caution in the Preface section.

  6. Install the 3 screws that retain the latch to the door.

    7. Tighten
    Tighten the screws to 10 N·m (89 lb in).

  7. Install the inside door handle. Refer to Door Inside Handle Replacement.

    8. Object Number: 737979 Size: SH
  8. Connect the lock cylinder rod to the cylinder, if equipped.
  9. Install the lock rod to the outside door handle.
  10. Connect the lock rod retaining clip to the outside door handle.
  11. Install the water deflector. Refer to Front Side Door Water Deflector Replacement.
  12. Install the door trim panel. Refer to Front Side Door Trim Panel Replacement.