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
Removal Procedure
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the headliner. Refer to Headlining Trim Panel Replacement .
- Cycle the glass panel to the rear.
- Disconnect the electrical connector from the sunroof module.
- Remove the front and rear sunroof drain hoses. Refer to Sunroof Housing Front Drain Hose Replacement and Sunroof Housing Rear Drain Hose Replacement .
- Remove the bolts that secure the sunroof module to the roof.
- With an assistant, lower and remove the sunroof module assembly.
Factory Service Tools
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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.