Hummer H2. Manual - part 621

Fig. 42: Loosening Crossbar Stanchion Knobs & Adjusting Crossbars 
Courtesy of GENERAL MOTORS CORP. 

1. Loosen the crossbar stanchion knobs and adjust the crossbars so that the centers of the crossbars are 

spread out to 140.5 cm (55 inches). 

IMPORTANT: Some of the installation procedures apply only if the luggage basket was 

never previously installed on the vehicle.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Roof - Hummer H2

  

Fig. 43: Cross Bar End Caps 
Courtesy of GENERAL MOTORS CORP. 

2. Remove the end caps from the crossbars of the roof rack on both sides. 

Fig. 44: Peeling Back Weatherstrip On Crossbar 
Courtesy of GENERAL MOTORS CORP. 

3. Peel back the weatherstrip on the crossbar to reveal the stanchion screws. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Roof - Hummer H2

  

Fig. 45: Removing Stanchion Screws From Both Crossbars 
Courtesy of GENERAL MOTORS CORP. 

4. Remove the stanchion screws from both crossbars and save for later re-use. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Roof - Hummer H2

  

Fig. 46: Installing End Caps On Cross Bars 
Courtesy of GENERAL MOTORS CORP. 

5. Replace the end caps to the crossbars of the roof rack and store for later re-use. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Roof - Hummer H2