Hummer H2. Manual - part 721

9. Apply 1 drop of adhesive to the center of the mirror mounting base. 

Fig. 18: Installing Mirror Base 
Courtesy of GENERAL MOTORS CORP. 

10. Immediately apply the mounting base to the windshield, ensuring that the mounting base aligns correctly 

to the marks made on the outside of the windshield.  

11. Hold the mounting base firmly in place for 1 minute.  

12. Allow the adhesive to set for 15 minutes.  

13. Install the mirror to the mirror mounting base and fasten, if necessary.  

14. Connect the electrical connector and install the wire cover, if equipped. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

WINDSHIELD REPLACEMENT 

Tools Required 

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J 24402-A Cold Knife Glass Sealant Remover. See Special Tools and Equipment .  

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J 39032 Stationary Window Removal Tool. See Special Tools and Equipment .  

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Urethane Adhesive Kit GM P/N 12346392 or Equivalent  

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Isopropyl Alcohol or Equivalent  

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Cartridge-type Caulking Gun  

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Commercial-type Utility Knife  

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Razor Blade Scraper  

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Suction Cups  

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Plastic Paddle  

Removal Procedure 

1. Open the hood.  

2. Remove the window wiper arms. Refer to Wiper Arm Replacement in Wipers/Washer Systems.  

3. Remove the window side reveal moldings from the vehicle. Refer to Windshield Side Reveal Molding 

Replacement .  

4. Remove the cowl air inlet grille panel. Refer to Air Inlet Grille Panel Replacement - Non Functional in 

Exterior Trim. 

5. Cover to protect the following parts from broken glass: 

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The upper dash pad  

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The defroster outlets and A/C outlets  

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The seats and carpeting  

6. Remove the rear view mirror. Refer to Rearview Mirror Replacement . 

IMPORTANT: Before cutting out a stationary window, apply a double layer of masking 

tape around the perimeter of the painted surfaces and the interior trim.

CAUTION: If broken glass falls into the defroster outlets, it can be blown into the 

passenger compartment and cause personal injury.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

Fig. 19: Window Lower Supports 
Courtesy of GENERAL MOTORS CORP. 

7. If necessary, remove the window lower supports (1) by using a flat bladed tool, lightly prying upward in 

the middle until it releases. 

IMPORTANT: The window lower supports (1) have molded in locks with an urethane 

adhesive strip (2) on the back side. Once the window lower stop have 
been removed they must be replaced.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

Fig. 20: Separating Urethane Adhesive From Window 
Courtesy of GENERAL MOTORS CORP. 

8. This will allow the urethane adhesive to be separated from the window. 

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Leave a base of urethane on the pinchweld flange.  

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The only suitable lubrication is clear water.  

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Use J 24402-A , J 39032 or equivalent in order to remove the window. See Special Tools and 
Equipment .  

IMPORTANT: Keep the cutting edge of the tool against the window.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2