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 819 (LIGHTING SYSTEMS)REPAIR INSTRUCTIONSMARKER LAMP REPLACEMENT - FRONT SIDEREMOVAL 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 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Locate the marker lamp gasket towards the wheel and gently lift the gasket edge to expose the service slot.
Insert a stiff wire as shown into the slot and push to release the marker lamp (1,3) locking tab from the flare.

Fig 1: Removing Procedure Marker Lamp - Front Side (1 Of 3)
Courtesy of GENERAL MOTORS CORP.
Grasp the marker lamp (1,3) and pull towards the wheel to remove.

Fig 2: Removing Procedure Marker Lamp - Front Side (2 Of 3)
Courtesy of GENERAL MOTORS CORP.
To remove the bulb socket from the marker lamp, turn the socket counterclockwise.
Pull the bulb to remove the bulb socket.

Fig 3: Removing Procedure Marker Lamp - Front Side (3 Of 3)
Courtesy 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.