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 MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1524 (SUNROOF SYSTEM)REPAIR INSTRUCTIONSSUNROOF WINDOW REPLACEMENT (EXTENDED CAB)INSTALLATION PROCEDURE

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Installation Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Sunroof Window Panel Screws

Courtesy of GENERAL MOTORS CORP.

Position the sunroof window panel to the sunroof module.
Ensure that the information logo stencil is towards the rear of the sunroof opening.

CAUTION: Refer to Fastener Caution .

Install the sunroof window panel screws to the sunroof window panel.
Tighten: Tighten the sunroof window panel screws to 4 N.m (35 lb in).
Adjust the sunroof window panel as necessary. Refer to Sunroof Window Height and Opening Fit Adjustment (Extended Cab) or Sunroof Window Height and Opening Fit Adjustment (Crew Cab) .
Inspect the sunroof window panel for proper operation.

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.