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.
2003 Hummer H2FACTORY OEM SERVICE PROCEDURE
Installation Procedure
WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
- Install the sunroof module assembly to the vehicle.
- Install the retaining nuts to the sunroof module.
Tighten: Tighten the nuts to 9 N.m (80 lb in).
- Install the brackets to the sunroof module.
- Install the bolts to the sunroof module.
Tighten: Tighten the bolts to 9 N.m (80 lb in).
- Install the rear drain hoses. Refer to Sunroof Drain Hose Replacement - Rear (SUV) .
- Install the front drain hoses. Refer to Sunroof Drain Hose Replacement - Front
- Connect the electrical connector.
- Install the headliner. Refer to Headliner Replacement in Interior Trim.
NOTE:
Refer to Fastener Notice
in Cautions and Notices.
Factory Service Tools
Use the Manual With the Right Hardware
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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.