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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1355 (SUNROOF SYSTEM)REPAIR INSTRUCTIONSSUNROOF REPLACEMENTREMOVAL 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 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Sunroof Window And Screws
    GM244994Courtesy of GENERAL MOTORS CORP.
  1. Remove the headlining trim finish panel. Refer to Headliner Replacement in Interior Trim.
  2. Remove the following components from the vehicle:
    • The 2 screws (2) from each side of the sunroof window
    • The sunroof window (1)
    3. Fig 2: Sunroof Air Deflector
    GM244914Courtesy of GENERAL MOTORS CORP.
  3. Remove the following components from the sunroof housing:
    • The 2 screws
    • The sunroof air deflector (1)
    4. Fig 3: Sunroof Actuator And Bolts
    GM244969Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the sunroof control module and the sunroof actuator electrical connectors.
    5. IMPORTANT: Remove the sunroof actuator with the motor in the fully closed position.
  5. Remove the following components from the vehicle:
    • The 3 bolts (1)
    • The sunroof actuator (4)
    6. Fig 4: Actuator Drive Gear, Cam Plate Cover And Sunroof Actuator
    GM328739Courtesy 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.