Hummer H2. Manual - part 2153

4. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement . 

Gently lift the upper trim cover so you may Insert the tip of an awl into the access hole (1) of the ignition 
lock cylinder case. 

5. Push down and hold the retaining pin of the ignition lock cylinder.  

6. Release the ignition lock cylinder to the run position. 

Fig. 40: Ignition Lock Cylinder & Steering Column 
Courtesy of GENERAL MOTORS CORP. 

7. Remove the ignition lock cylinder by pulling the cylinder away from the steering column.  

Installation Procedure 

IMPORTANT: In order to remove the upper trim cover and lock cylinder you will need to 

release the lock cylinder retaining pin in the access hole of the ignition 
lock cylinder case.

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

Fig. 41: Push Lock Cylinder Into Tab Locks In Ignition Lock Cylinder Case 
Courtesy of GENERAL MOTORS CORP. 

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

2. Install the ignition lock cylinder by performing the following procedure: 

1. Align the positioning locking tab slot on the ignition lock cylinder case to the positioning tab on the 

ignition lock cylinder.  

2. Push the lock cylinder in until the tab locks in the ignition lock cylinder case.  

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

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

(Single Battery) in Engine Electrical.  

5. Perform the Passlock learn procedure. Refer to Programming Theft Deterrent System Components in 

Theft Deterrent.  

IGNITION LOCK CYLINDER CASE REPLACEMENT 

Removal Procedure 

CAUTION: Refer to SIR Caution in Cautions and Notices.

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

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

2. Remove the ignition switch. Refer to Ignition Switch Replacement .  

3. Remove the turn signal cancel cam. Refer to Turn Signal Cancel Cam and Steering Shaft Upper 

Bearing Spring Replacement .  

4. Remove the park lock cable from the lock cylinder housing. 

Fig. 42: Identifying 3 TORX Screws 
Courtesy of GENERAL MOTORS CORP. 

5. Remove 3 TORX(R) screws.  

6. Remove the lock cylinder housing from the steering column.  

Installation Procedure 

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2

  

Fig. 43: Identifying 3 TORX Screws 
Courtesy of GENERAL MOTORS CORP. 

1. Install 3 TORX(R) screws into the lock cylinder housing. 

Tighten: Tighten the TORX(R) screws to 7 N.m (62 lb in). 

2. Install the turn signal cancel cam. Refer to Turn Signal Cancel Cam and Steering Shaft Upper 

Bearing Spring Replacement .  

3. Install the park lock cable into the lock cylinder housing.  

4. Install the ignition switch. Refer to Ignition Switch Replacement .  

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

MULTIFUNCTION TURN SIGNAL SWITCH HOUSING REPLACEMENT 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 STEERING Steering Wheel and Column - Hummer H2