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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEMIRRORSDOOR SYSTEM, MIRROR SYSTEM & WINDOW SYSTEMREPAIR INSTRUCTIONSWINDOW WEATHERSTRIP RUN CHANNEL ASSEMBLY REPLACEMENT - REAR (TRAILBLAZER, ENVOY, BRAVADA)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
  1. Remove the trim panel. Refer to TRIM PANEL REPLACEMENT - SIDE REAR DOOR   . 
  2. Remove the inner window belt sealing strip. Refer to SEALING STRIP REPLACEMENT - REAR DOOR WINDOW BELT INNER   . 
  3. Remove the outer window belt sealing strip. Refer to SEALING STRIP REPLACEMENT - REAR DOOR WINDOW BELT OUTER   . 
  4. Remove the water deflector. Refer to WATER DEFLECTOR REPLACEMENT - REAR DOOR   . 
  5. Remove the window. Refer to WINDOW REPLACEMENT - REAR DOOR (TRAILBLAZER, ENVOY, BRAVADA)   or WINDOW REPLACEMENT - REAR DOOR (TRAILBLAZER EXT, ENVOY XL)   . 
  6. Remove the bolt that retains the weatherstrip run channel to the door.
  7. Pull the weatherstrip/run channel from the window frame opening.
  8. Carefully release the double sided tape attaching the molding to the outside of the door.
  9. Carefully twist the weatherstrip run channel and pull up at the top of the door frame.
    IMPORTANT: The quarter glass and weatherstrip/run channel is not serviceable and should be replaced only as an assembly.
  10. Remove the weatherstrip/run channel from the door.
    11. Fig 1: Removing Weatherstrip/Run Channel From Door - Rear (TrailBlazer, Envoy, Bravada)
    G01641605Courtesy 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.