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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1207 (DOOR SYSTEM, MIRROR SYSTEM & WINDOW SYSTEM)REPAIR INSTRUCTIONSLOCK REPLACEMENT - DOORREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Refer to EXPRESS WINDOW DOWN CAUTION in Cautions and Notices.

Important:  The clip retaining the outside door handle opening rod to the door lock should not be reused. To ensure the proper retention of the rod the clip must be replaced after being opened to release the rod.

  1. Remove the door trim panel. Refer to TRIM PANEL REPLACEMENT - DOOR .
    Fig 1: Door Trim Panel
    G01451190Courtesy of GENERAL MOTORS CORP.
  2. Remove the water deflector.
    Fig 2: Water Deflector
    G01451191Courtesy of GENERAL MOTORS CORP.
  3. Remove the switch from the door trim panel.
    1. Pry up the rear edge of the driver side switch, or the front edge of the passenger side switch.
    2. Slide the driver side switch rearward, or the passenger side switch forward, out of the door trim panel.
  4. Reconnect the power window switch to the wire harness and raise the door window.
  5. Disconnect the switch.
    Fig 3: Removing Switch From Door Trim Panel
    G01451192Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the outside handle lock cylinder rod from the lock cylinder lever (key lockable outside handle).
    Fig 4: Removing Outside Handle Lock Cylinder Rod From Lock Cylinder Lever
    G01451193Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the electrical connectors from the lock.
  8. Disconnect the outside handle opening rod from the door lock by opening the clip using a coolant hose removal tool or by cutting the base of the clip off with a pair of side cutters and unscrewing the clip from the rod.
  9. Remove the screws from the door lock.
    Fig 5: Disconnecting Electrical Connectors From Lock
    G01451194Courtesy of GENERAL MOTORS CORP.
  10. Remove the Inside door handle. Refer to DOOR HANDLE REPLACEMENT - INSIDE .
    Fig 6: Inside Door Handle
    G01451195Courtesy of GENERAL MOTORS CORP.
  11. Disconnect the rods from the inside handle.
  12. Disconnect the rods from the anti rattle retainer.
    Fig 7: Disconnecting Rods From Anti Rattle Retainer
    G01451196Courtesy of GENERAL MOTORS CORP.
  13. Remove the door lock with the inside handle and the outside handle opening rods attached.
  14. Remove the rods if not reusing the lock. Note the position of each rod.
    Fig 8: Removing Door Lock With Inside Handle & Outside Handle Opening Rods Attached
    G01451197Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.