Hummer H2. Manual - part 2646

REPAIR INSTRUCTIONS 

AUTOMATIC TRANSMISSION SHIFT LOCK ACTUATOR REPLACEMENT 

Removal Procedure 

Fig. 4: Removing & Installing Console 
Courtesy of GENERAL MOTORS CORP.

Did you complete the replacement?

Step 20

-

20

Operate the system in order to verify the repair. 
Did you find and correct the condition?

System 

OK

Go to Step 2

 

2004 Hummer H2 

2004 TRANSMISSION Shift Lock Control - Hummer H2

  

1. Remove the console. Refer to Console Replacement in Instrument Panel, Gauges and Console. 

Fig. 5: Shift Lock Actuator & Electrical Connector 
Courtesy of GENERAL MOTORS CORP. 

2. Disconnect the Shift Lock Actuator electrical connector (3).  

3. Remove the Shift Lock Actuator fasteners and remove Actuator (2).  

Installation Procedure 

 

2004 Hummer H2 

2004 TRANSMISSION Shift Lock Control - Hummer H2

  

Fig. 6: Shift Lock Actuator & Electrical Connector 
Courtesy of GENERAL MOTORS CORP. 

1. Install the Shift Lock Actuator onto the shift selector and install fasteners (2). 

Tighten: Tighten the shift lock actuator fasteners to 2 N.m (18 lb in). 

2. Connect the electrical connector (3). 

NOTE:

Refer to Fastener Notice in Cautions and Notices

 

2004 Hummer H2 

2004 TRANSMISSION Shift Lock Control - Hummer H2

  

Fig. 7: Removing & Installing Console 
Courtesy of GENERAL MOTORS CORP. 

3. Install the console. Refer to Console Replacement in Instrument Panel, Gauges and Console.  

DESCRIPTION AND OPERATION 

AUTOMATIC TRANSMISSION SHIFT LOCK CONTROL DESCRIPTION AND OPERATION 

Automatic Transmission Shift Lock Control System 

The automatic transmission shift lock control is a safety device that prevents an inadvertent shift out of PARK 
when the ignition is ON. The driver must press the brake pedal before moving the shift lever out of the PARK 

 

2004 Hummer H2 

2004 TRANSMISSION Shift Lock Control - Hummer H2