Hummer H2. Manual - part 1141

Fig. 63: View Of Generator Cable & Nut 
Courtesy of GENERAL MOTORS CORP. 

3. Install the generator cable to the generator, perform the following: 

1. Install the generator cable.  

2. Install the generator cable nut to the terminal stud. 

Tighten: Tighten the generator cable nut to 9 N.m (80 lb in). 

3. Slide the boot over the terminal stud. 

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

Fig. 64: Generator Electrical Connector 
Courtesy of GENERAL MOTORS CORP. 

4. Connect the generator electrical connector (3).  

5. Install the engine sight shield. Refer to Engine Sight Shield Replacement 6.0L (LQ4) in Engine 

Mechanical - 6.0L (LQ4).  

6. Install the accessory drive belt. Refer to Drive Belt Replacement - Accessory in Engine Mechanical - 

6.0L (LQ4). 

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

Fig. 65: Battery Ground Negative Cable & Bolt 
Courtesy of GENERAL MOTORS CORP. 

7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure 

(Single Battery) .  

DESCRIPTION AND OPERATION 

BATTERY DESCRIPTION AND OPERATION 

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2

  

Fig. 66: View Of Battery Danger Label 
Courtesy of GENERAL MOTORS CORP. 

The maintenance free battery is standard. There are no vent plugs in the cover. The battery is completely sealed 
except for 2 small vent holes in the side. These vent holes allow the small amount of gas that is produced in the 
battery to escape. 

The battery has 3 functions as a major source of energy: 

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Engine cranking  

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Voltage stabilizer  

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Alternate source of energy with generator overload  

The battery specification label, example below, contains information about the following: 

CAUTION: Batteries produce explosive gases, contain corrosive acid, and supply 

levels of electrical current high enough to cause burns. Therefore, to 
reduce the risk of personal injury when working near a battery: 

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Always shield your eyes and avoid leaning over the battery whenever 
possible.  

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Do not expose the battery to open flames or sparks.  

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Do not allow the battery electrolyte to contact the eyes or the skin. 
Flush immediately and thoroughly any contacted areas with water 
and get medical help.  

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Follow each step of the jump starting procedure in order.  

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Treat both the booster and the discharged batteries carefully when 
using the jumper cables.  

 

2004 Hummer H2 

2004 ELECTRICAL Engine Electrical - Hummer H2