Hummer H2. Manual - part 2251

Tighten: Tighten the bolts securing the switch to 25 N.m (18 lb ft).

6. Remove the J 41364-A from the switch. If installing a new switch, remove the positive assurance bracket 

at this time.  

7. Connect the electrical connectors to the switch. 

Fig. 46: PNP Switch 
Courtesy of GENERAL MOTORS CORP. 

8. Install the transmission control lever to the manual shaft with the nut. 

Tighten: Tighten the control lever nut to 25 N.m (18 lb ft).

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

9. Lower the vehicle.  

10. Check the switch for proper operation. The engine must start in the P (Park) or N (Neutral) positions 

only. If proper operation of the switch can not be obtained, replace the switch.  

PARK/NEUTRAL POSITION SWITCH ADJUSTMENT 

1. Place the transmission range selector in the N (Neutral) position.  

2. With an assistant in the drivers seat, raise the vehicle. Refer to Lifting and Jacking the Vehicle in 

General Information.  

3. Loosen the park/neutral position switch mounting bolts.  

4. With the vehicle in the N (Neutral) position, rotate the switch while the assistant attempts to start the 

engine.  

5. Following a successful start, turn the engine off. 

6. Tighten the bolts securing the switch to the transmission. 

Tighten: Tighten the bolts to 25 N.m (18 lb ft). 

7. Lower the vehicle.  

8. Check the switch for proper operation. The engine must start in the P (Park) or N (Neutral) positions 

only.  

9. Replace the park/neutral position switch if proper operation can not be achieved. Refer to Park/Neutral 

Position Switch Replacement .  

TOW/HAUL SWITCH REPLACEMENT 

Removal Procedure 

1. Remove the instrument panel trim plate bezel. Refer to Trim Panel Replacement - Instrument Panel 

(I/P) Center in Instrument Panel, Gauges, and Console. 

IMPORTANT:

z

The following procedure is for vehicles that have not had the switch 
removed or replaced. If the switch has been removed or replaced, refer to 
Park/Neutral Position Switch Replacement for the proper adjustment 
procedure.  

z

Apply the parking brake.  

z

The engine must start in the P (Park) or N (Neutral) positions only.  

z

Check the switch for proper operation. If adjustment is required, proceed 
as follows:  

NOTE:

Refer to Fastener Notice in Cautions and Notices.

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 47: Switch Recepticle Screws 
Courtesy of GENERAL MOTORS CORP. 

2. Remove the switch recepticle screws. 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2

  

Fig. 48: Switch Recepticle & Instrument Panel 
Courtesy of GENERAL MOTORS CORP. 

3. Pull the switch recepticle from the instrument panel and disconnect the electrical connectors from the 

switch. 

 

2004 Hummer H2 

2004 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E (Introduction) - Hummer H2