Hummer H2. Manual - part 2041

11. Enable the SIR system. Refer to SIR Disabling and Enabling Zones .  

INFLATABLE RESTRAINT STEERING WHEEL MODULE REPLACEMENT 

Removal Procedure 

1. Disable the inflatable restraint steering wheel module. Refer to SIR Disabling and Enabling Zone 3 . 

DTC B1001 may set requiring the SDM part number to be set in multiple 
modules. If the indicator remains ON after enabling the SIR system, 
perform the diagnostic system check and follow the steps thoroughly to 
ensure that the SDM is set properly.

CAUTION: Refer to SIR Inflator Module Handling and Storage Caution in Cautions and 

Notices.

CAUTION: Refer to SIR Caution in Cautions and Notices.

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

Fig. 36: Steering Column Leaf Spring Fasteners 
Courtesy of GENERAL MOTORS CORP. 

2. Using a blunt-ended tool, push the leaf spring fasteners (2) inward through the access holes. The access 

holes are located on both sides of the steering wheel shroud. 

 

2004 Hummer H2 

2004 RESTRAINTS SIR - Hummer H2

  

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