Hummer H3. Manual — part 1043

Fig. 15: Brake Pads Replacement - Rear
Courtesy of GENERAL MOTORS CORP.

Rear Disc Brake Pads Replacement

Callout

Component Name

CAUTION:

Refer to Brake Dust Caution .

CAUTION:

Refer to Brake Fluid Irritant Caution .

NOTE:

Refer to Fastener Notice .

2007 Hummer H3

2007 BRAKES Disc Brakes - H3

BRAKE PAD AND ROTOR BURNISHING

Burnishing the brake pads and brake rotors is necessary in order to ensure that the braking
surfaces are properly prepared after service has been performed on the disc brake system.

This procedure should be performed whenever the disc brake rotors have been refinished or
replaced, and/or whenever the disc brake pads have been replaced.

1. Select a smooth road with little or no traffic.

2. Accelerate the vehicle to 48 km/h (30 mph).

3. Using moderate to firm pressure, apply the brakes to bring the vehicle to a stop. Do not

allow the brakes to lock.

4. Repeat steps 2 and 3 until approximately 20 stops have been completed. Allow sufficient

cooling periods between stops in order to properly burnish the brake pads and rotors.

FRONT BRAKE CALIPER REPLACEMENT

Preliminary Procedure: Raise and support the vehicle. Refer to Lifting and Jacking the
Vehicle .

1

Rear Disc Brake Caliper Bolt (Qty: 2)
Tip: Pump the brake pedal in order to seat the new brake pads, then road test
the vehicle in order to burnish the brake pads. Refer to Brake Pad and
Rotor Burnishing.

Tighten: 36 N.m (27 lb ft).

2

Rear Disc Brake Caliper

3

Rear Disc Brake Caliper Bracket Retainer (Qty: 2)

4

Rear Disc Brake Inner Pad Assembly
Tip: Compress the pistons into the caliper bores.

5

Rear Disc Brake Outer Pad Assembly

CAUTION: Refer to ROAD TEST CAUTION .

IMPORTANT: Use care to avoid overheating the brakes while performing

this step.

2007 Hummer H3

2007 BRAKES Disc Brakes - H3

Fig. 16: Brake Caliper Replacement - Front
Courtesy of GENERAL MOTORS CORP.

Front Brake Caliper Replacement

Callout

Component Name

CAUTION:

Refer to Bleed Procedure Caution .

CAUTION:

Refer to Brake Dust Caution .

CAUTION:

Refer to Brake Fluid Irritant Caution .

NOTE:

Refer to Brake Fluid Effects on Paint and Electrical Components Notice .

NOTE:

2007 Hummer H3

2007 BRAKES Disc Brakes - H3

REAR BRAKE CALIPER REPLACEMENT

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications.

Preliminary Procedures

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

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

Refer to Fastener Notice .

1

Brake Hose Banjo Bolt
Tip: If removing the brake caliper to service another part of the brake
system, DO NOT remove the brake hose. Reposition the brake caliper to the
side and secure with mechanics wire or the equivalent.

Tighten: 40 N.m (30 lb ft)

2

Brake Hose Banjo Bolt Washer (Qty: 2)
Tip: Install the new brake hose banjo bolt washers. Do not reuse the brake
hose banjo bolt washers.

3

Front Brake Hose
Tip:

Cap or plug the brake hose to prevent fluid loss and contamination.

Bleed the brake system anytime the system is opened for repairs. Refer
to Hydraulic Brake System Bleeding (Manual) or Hydraulic
Brake System Bleeding (Pressure) .

4

Brake Caliper Bolt (Qty: 2)

Tighten: 195 N.m (144 lb ft)

5

Front Brake Caliper

2007 Hummer H3

2007 BRAKES Disc Brakes - H3