Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 722 (DOOR SYSTEM, MIRROR SYSTEM & WINDOW SYSTEM)REPAIR INSTRUCTIONSPOWER DOOR LOCK SWITCH REPLACEMENT - REARREMOVAL PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Remove the upper garnish molding. Refer to GARNISH MOLDING REPLACEMENT - REAR UPPER (TAHOE/YUKON/ESCALADE/SUBURBAN) or GARNISH MOLDING REPLACEMENT - REAR UPPER (AVALANCHE/ESCALADE EXT) .

Fig 1: D-Pillar Molding

Courtesy of GENERAL MOTORS CORP.

Remove the D-Pillar molding.
Disconnect the electrical connectors.

Fig 2: Rear Power Door Lock Switch Tabs

Courtesy of GENERAL MOTORS CORP.

Push on the tab (2) in order to remove the switch from the D-Pillar molding.
Insert a small screwdriver between the tab (1) in order to pry out the switch from the case.

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.