Hummer H2. Manual - part 810

 

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Hummer H2. Manual - part 810

 

 

a significant amount of drag.  

Do the rear brakes have a significant amount of drag?

Go to Step 11

Go to Step 5

5

1. Shift the transmission into NEUTRAL.  

2. Apply the park brake.  

3. Attempt to rotate the rear wheels to check the rear 

brakes for a significant amount of drag.  

Do the rear brakes have a significant amount of drag?

Go to Step 6

Go to Step 7

6

1. Release the park brake.  

2. Rotate the rear wheels to check the rear brakes for 

a significant reduction in the amount of drag.  

Did the rear brakes exhibit a significant reduction in the 
amount of drag?

Go to Step 22

Go to Step 11

7

Visually check the park brake cable connections and the 
cables that are accessible on the UNDERSIDE of the 
vehicle for disconnections and/or damage. 
Were any or the park brake cables disconnected and/or 
damaged?

Go to Step 8

Go to Step 9

8

Reconnect or replace the park brake cables as necessary. 
Refer to the following procedures as necessary: 

z

Park Brake Cable Replacement - Front  

z

Park Brake Cable Replacement - Left Rear  

z

Park Brake Cable Replacement - Right Rear  

 
Did you complete the repair and/or replacement?

Go to Step 9

-

9

Check the adjustment of the park brake. Refer to Park 
Brake Adjustment . 
Was the park brake adjusted properly?

Go to Step 11

Go to Step 10

10

Adjust the park brake. Refer to Park Brake 
Adjustment . 
Were you able to attain adjustment of the park brake?

Go to Step 16

Go to Step 11

11

1. Remove the rear brake rotors. Refer to Brake 

Rotor Replacement - Rear in Disc Brakes.  

NOTE:

Do not depress the brake pedal with the brake rotors 
and/or the brake drums removed, or with the brake 
calipers repositioned away from the brake rotors, or 
damage to the brake system may result.

 

2004 Hummer H2 

2004 BRAKES Park Brake - Hummer H2

  

2. Inspect the park brake shoe hardware for 

looseness, damaged, broken or missing 
components.  

3. Check the park brake actuators for a seized 

condition.  

Does the park brake hardware and/or the park brake 
actuators require replacement?

Go to Step 12

Go to Step 13

12

1. Replace park brake hardware components as 

necessary. Refer to Park Brake Shoe 
Replacement .  

2. Replace the park brake actuators as necessary. 

Refer to Park Brake Actuator Replacement .  

Did you complete the replacement?

Go to Step 13

-

13

Have an assistant apply and release the park brake, 
while you observe the park brake cables for free 
movement. 
Did the park brake cables move freely?

Go to Step 14

Go to Step 17

14

Check the adjustment of the park brake. Refer to Park 
Brake Adjustment . 
Was the park brake adjusted properly?

Go to Step 16

Go to Step 15

15

Adjust the park brake. Refer to Park Brake 
Adjustment . 
Were you able to attain adjustment of the park brake?

Go to Step 16

Go to Step 25

16

1. With the transmission still in NEUTRAL, apply 

the park brake.  

2. Attempt to rotate the rear wheels to check the rear 

brakes for a significant amount of drag.  

3. Release the park brake.  

4. Rotate the rear wheels to check the rear brakes for 

a significant reduction of drag.  

Did the park brake apply and release properly?

Go to Step 27

Return to Symptom 

Table

17

Disconnect the park brake cable connections that are 
accessible on the UNDERSIDE of the vehicle one at a 
time and check each cable for free movement. 
Do any of the park brake cables accessible on the 
underside of the vehicle require replacement?

Go to Step 18

Go to Step 19

Replace any of the park brake cables that do not have 
free movement and/or are not releasing properly. Refer 
to the following procedures as necessary: 

z

Park Brake Cable Replacement - Front  

 

2004 Hummer H2 

2004 BRAKES Park Brake - Hummer H2

  

18

z

Park Brake Cable Replacement - Left Rear  

z

Park Brake Cable Replacement - Right Rear  

 
Did you complete the replacement?

Go to Step 19

-

19

1. Disconnect the front park brake cable connection 

accessible INSIDE the vehicle at the park brake 
pedal assembly and check for free movement.  

2. Replace the front park brake cable if it does not 

have free movement. Refer to Park Brake Cable 
Replacement - Front .  

Did you find and correct a condition?

Go to Step 25

Go to Step 20

20

1. Disconnect the park brake release handle 

assembly cable connection from the park brake 
pedal assembly and check for free movement.  

2. Replace the park brake release handle assembly if 

the release cable does not have free movement. 
Refer to Park Brake Release Handle Assembly 
Replacement .  

Did you find and correct a condition?

Go to Step 25

Go to Step 21

21

Replace the park brake pedal assembly that is not 
releasing properly. Refer to Park Brake Pedal 
Assembly Replacement . 
Did you complete the replacement?

Go to Step 25

-

22

Check the adjustment of the park brake. Refer to Park 
Brake Adjustment . 
Is the park brake adjusted properly?

Go to Step 27

Go to Step 23

23

Adjust the park brake. Refer to Park Brake 
Adjustment . 
Were you able to attain adjustment of the park brake 
system?

Go to Step 26

Go to Step 24

24

1. Remove the rear brake rotors, if they have not yet 

been removed. Refer to Brake Rotor 
Replacement - Rear in Disc Brakes.  

2. Check the park brake actuators for a seized 

condition.  

3. Replace the park brake actuators as necessary. 

Refer to Park Brake Actuator Replacement .  

Did you find and correct a condition?

Go to Step 25

Return to Symptom 

Table

Adjust the park brake. Refer to Park Brake 

 

2004 Hummer H2 

2004 BRAKES Park Brake - Hummer H2

  

PARK BRAKE SHOE INSPECTION 

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.  

2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.  

3. Remove the rear brake caliper bracket with the rear brake caliper. Refer to Brake Caliper Bracket 

Replacement - Rear in Disc Brakes.  

4. Remove the rear brake rotor. Refer to Brake Rotor Replacement - Rear in Disc Brakes. 

or  

5. Inspect and replace the park brake shoe and lining if any of the following conditions are found: 

z

Excessive wear indicated by the park brake lining being worn down to the shoe  

z

Brake lining cracking  

z

Oil or fluid contamination of the brake lining  

6. Adjust the park brake shoe. Refer to Park Brake Adjustment in Park Brake.  

7. Install the rear brake rotor. Refer to Brake Rotor Replacement - Rear in Disc Brakes.  

8. Install the rear brake caliper with the rear brake caliper bracket. Refer to Brake Caliper Bracket 

Replacement - Rear in Disc Brakes.  

9. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.  

10. Lower the vehicle.  

25

Adjustment . 
Were you able to attain adjustment of the park brake 
system?

Go to Step 26

Return to Symptom 

Table

26

1. With the transmission still in NEUTRAL, apply 

the park brake.  

2. Attempt to rotate the rear wheels to check the rear 

brakes for a significant amount of drag.  

3. Release the park brake.  

4. Rotate the rear wheels to check the rear brakes for 

a significant reduction of drag.  

Did the park brake apply and release properly?

Go to Step 27

Return to Symptom 

Table

27

Install or connect any components that were removed or 
disconnected during diagnosis. 
Did you complete the operation?

Park Brake 

System OK 

Return to 

Symptom Table

-

CAUTION: Refer to Brake Dust Caution in Cautions and Notices.

 

2004 Hummer H2 

2004 BRAKES Park Brake - Hummer H2

  

 

 

 

 

 

 

 

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