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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSDOOR SYSTEM, MIRROR SYSTEM & WINDOW SYSTEMREPAIR INSTRUCTIONSDOOR REPLACEMENT - SIDE FRONTREMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
  1. Disable the supplemental inflatable restraint (SIR) system. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM  and to DISABLING & ACTIVATING AIR BAG SYSTEM  in SIR.
  2. Remove the accessory switch panel. Refer to SWITCH REPLACEMENT - DOOR LOCK AND SIDE WINDOW - DRIVER   . 
  3. Remove the door trim panel. Refer to TRIM PANEL REPLACEMENT - SIDE FRONT DOOR   . 
  4. Remove the outer belt sealing strip. Refer to SEALING STRIP REPLACEMENT - FRONT DOOR WINDOW BELT OUTER   . 
  5. Remove the inside door handle. Refer to DOOR HANDLE REPLACEMENT - INSIDE   . 
  6. Remove the speaker. Refer to SPEAKER REPLACEMENT - FRONT DOOR  in Entertainment.
  7. Remove the water deflector. Refer to WATER DEFLECTOR REPLACEMENT - FRONT DOOR   . 
  8. Remove the outside rear view mirror (ORVM).

    Refer to MIRROR REPLACEMENT   . 

  9. Remove the window. Refer to WINDOW REPLACEMENT - FRONT DOOR   . 
  10. Remove the weatherstrip run channel. Refer to WINDOW WEATHERSTRIP RUN CHANNEL ASSEMBLY REPLACEMENT - FRONT   . 
  11. Remove the window regulator. Refer to WINDOW REGULATOR REPLACEMENT - FRONT DOOR   . 
  12. Remove the door latch assembly. Refer to LATCH REPLACEMENT - FRONT DOOR   . 
  13. Remove the side door SIR sensor. Refer to SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM  in SIR.
  14. Remove the outside door handle. Refer to DOOR HANDLE REPLACEMENT - FRONT OUTSIDE   . 
  15. Remove the check link. Refer to DOOR CHECK LINK REPLACEMENT   . 
  16. Remove the wire harness from the door. Refer to WIRING HARNESS REPLACEMENT - FRONT DOOR   . 
  17. Remove the bolts that retain the door to the hinge plates.
  18. Remove the door from the vehicle with an assistant.
    19. Fig 1: Removing Bolts Retaining Side Front Door To Hinge Plates
    G01641474Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

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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.