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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1630 (LIGHTING SYSTEMS)REPAIR INSTRUCTIONSHEADLAMP SWITCH 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 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Pull the rearward edge of the access opening cover outboard on the left side of the instrument panel (I/P) to release the retainers. Use a plastic flat-bladed tool as an aid if necessary.
  2. Release the forward edge of the access opening cover from behind the hinge pillar and remove the cover.
  3. Remove the autolamp switch screws.
    Fig 1: Removing Headlamp Switch Screws
    G01587060Courtesy of GENERAL MOTORS CORP.
  4. Carefully pull the autolamp switch outboard away from the I/P to access the electrical connector.
  5. Disconnect the electrical connector from the autolamp switch.
    Fig 2: Disconnecting Electrical Connector From Headlamp Switch
    G01587061Courtesy 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.