Hummer H2. Manual - part 2074

Fig. 37: Electrical Connectors & Inflatable Restraint Steering Wheel Module 
Courtesy of GENERAL MOTORS CORP. 

3. Lift and partially remove the inflatable restraint steering wheel module from the steering wheel in order to 

expose the electrical connectors (1).  

4. Disconnect the connector-position assurance (CPA) retainers from the electrical connectors.  

5. Disconnect the electrical connectors from the inflatable restraint steering wheel module. 

6. Remove the inflatable restraint module from the steering wheel.  

7. Fully deploy the module before disposal. If the module was replaced under warranty, fully deploy and 

dispose of the module after the required retention period. Refer to Inflator Module Handling and 
Scrapping .  

Installation Procedure 

IMPORTANT: Do not attempt to repair the inflatable restraint steering wheel module. 

The inflatable restraint steering wheel module is replaced only as an 
assembly.

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

1. Position the inflatable restraint module to the steering wheel.  

2. Connect the electrical connectors (1) to the inflatable restraint steering wheel module. 

Fig. 38: Electrical Connectors & Inflatable Restraint Steering Wheel Module 
Courtesy of GENERAL MOTORS CORP. 

3. Connect the CPA retainers into the electrical connectors. Seat and lock the connections. 

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

Fig. 39: Steering Column Leaf Spring Fasteners 
Courtesy of GENERAL MOTORS CORP. 

4. Position the alignment posts of the inflatable restraint module to the holes that are located on the steering 

wheel housing.  

5. Push the inflatable restraint module into the steering wheel in order to engage and in order to latch the 2 

leaf spring fasteners (1).  

6. After installation, pull the sides of the inflatable restraint module in order to ensure that both leaf spring 

fasteners are engaged.  

7. Enable the inflatable restraint steering wheel module. Refer to SIR Disabling and Enabling Zone 3 .  

INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL REPLACEMENT (COIL) 

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

Tools Required 

J 42640 Steering Column Anti Rotation Pin 

Removal Procedure 

1. Disable the SIR System. Refer to SIR Disabling and Enabling Zone 3 . 

Fig. 40: Steering Wheel & Steering Shaft 
Courtesy of GENERAL MOTORS CORP. 

2. Verify the following before removing the SIR coil: 

z

The wheels on the vehicle are straight ahead. 

CAUTION: Refer to SIR Caution in Cautions and Notices.

NOTE:

The wheels of the vehicle must be straight ahead and the steering column 
in the LOCK position before disconnecting the steering column or 
intermediate shaft from the steering gear. Failure to do so will cause the 
SIR coil assembly to become uncentered, which may cause damage to the 
coil assembly.

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2