Hummer H2. Manual - part 720

Courtesy of GENERAL MOTORS CORP.

2. Disconnect the electrical connector (4), if equipped.  

3. Using a TORX-head(R) screwdriver, loosen the set screw that holds the mirror base to the windshield 

button.  

4. Slide the mirror (3) off of the support.  

Installation Procedure 

Fig. 15: Electrical Connector & Rearview Mirror 
Courtesy of GENERAL MOTORS CORP. 

1. Slide the mirror (3) onto the mirror support. 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

2. Install the set screw. 

Tighten: Tighten the set screw to 2 N.m (18 lb in). 

3. Connect the electrical connector (4), if equipped.  

4. Install the wire cover (2), if equipped.  

5. Ensure the wire cover is tucked into the forward edge of the headliner (1).  

6. Re-calibrate the compass. Refer to Compass Calibration and Variance Procedure .  

REARVIEW MIRROR SUPPORT INSTALLATION 

Tools Required 

z

Inside Mirror Adhesive Kit GM P/N 1052369 or Equivalent  

z

Safety Razor or Utility Knife  

1. Determine the location of the mirror mounting base by marking the outside of the windshield with a 

marking pencil where the base was previously located. If it is not clear where the base was mounted, use 
the following steps to determine where the base should be installed: 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

Fig. 16: Identifying Mirror Mounting Base Location 
Courtesy of GENERAL MOTORS CORP. 

1. Using a measuring tape, measure the distance between the windshield pillars from the base of the 

shade line.  

2. Using a marking pencil, halfway between the windshield pillars, draw a centerline (1) on the 

windshield from the roof panel to the windshield base.  

3. Draw a perpendicular line intersecting the centerline (2) at that location. 

The top center of the mirror mounting base will be at the intersection of these lines. 

2. Scrape the inside windshield glass thoroughly with a safety razor or utility knife in order to remove all 

old adhesive.  

3. If reinstalling the original mounting base, place the mirror mounting base in a suitable holding device, 

such as a vice.  

4. Scrape the mirror mounting base thoroughly with a safety razor or utility knife in order to remove all old 

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2

  

adhesive.  

5. Clean the inside windshield glass and the mounting surface of the mirror mounting base thoroughly with 

a clean cloth saturated with naphtha or a 50/50 mixture (by volume) of clean water and isopropyl alcohol. 

Fig. 17: Preparing Mirror Mounting Base 
Courtesy of GENERAL MOTORS CORP. 

6. Use Inside Mirror Adhesive Kit GM P/N 1052369 or equivalent to apply a small amount of activator to 

the mounting surface of the mirror mounting base.  

7. Apply a small amount of activator to the windshield where the mounting base is to be installed.  

8. Allow the activator to dry 5 minutes. 

IMPORTANT: Do not touch the mounting surface of the mirror mounting base or the 

glass.

 

2004 Hummer H2 

2004 ACCESSORIES & EQUIPMENT Stationary Windows - Hummer H2