Hummer H2. Manual - part 2152

Fig. 36: Inserting Ignition Switch Into Lock Cylinder Housing 
Courtesy of GENERAL MOTORS CORP. 

4. Insert the ignition switch into the lock cylinder housing. The tabs (2) on the ignition switch MUST be 

seated inside the lock cylinder housing (1) for proper installation. 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

Fig. 37: Using Screwdriver To Rotate Lock Cylinder Housing Gear Clockwise To START Position
Courtesy of GENERAL MOTORS CORP. 

5. Use a screwdriver to rotate the lock cylinder housing gear clockwise to the START position, allowing it 

to spring return into the RUN position. 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

Fig. 38: Aligning Lock Cylinder Into Lock Cylinder Housing 
Courtesy of GENERAL MOTORS CORP. 

6. Align the lock cylinder and install the lock cylinder into the lock cylinder housing.  

7. Connect the passlock and key buzzer into the lock housing.  

8. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement .  

9. Install the hush and knee bolster. Refer to Trim Panel Replacement - Knee Bolster in Instrument Panel, 

Gauges, and Console.  

10. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 3 in SIR.  

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

(Single Battery) in Engine Electrical.  

IGNITION LOCK CYLINDER REPLACEMENT 

Removal Procedure 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

Fig. 39: Ignition Lock Cylinder Case 
Courtesy of GENERAL MOTORS CORP. 

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

(Single Battery) in Engine Electrical. 

2. Disable the SIR system. Refer to SIR Disabling and Enabling Zone 3 in SIR.  

3. Turn the ignition lock cylinder to the start position. 

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.

CAUTION: Refer to SIR Caution in Cautions and Notices.

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2