CTS 2006-2007, CTS-V 2005-2007, DTS 2006-2007

Brake Pads

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Removal & Installation



(J55) & (Jl9) Brake Systems
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Inspect the fluid level in the brake master cylinder reservoir.
  4.  
  5. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
  6.  
  7. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
  8.  
  9. Raise the vehicle and suitably support.
  10.  
  11. Mark the relationship of the wheel to the axle flange.
  12.  
  13. Remove the tire and wheel assembly.
  14.  
  15. Install a large C-clamp over the body of the brake caliper with the C-clamp ends against the rear of the caliper body and against the outer brake pads.
  16.  
  17. Tighten the C-clamp until the caliper pistons are compressed into the caliper bore enough to allow the caliper to slide past the brake rotor.
  18.  
  19. Remove the C-clamp from the brake caliper.
  20.  
  21. Remove the brake caliper pin bolts .
  22.  
  23. Pivot the brake caliper body upward and secure out of the way with heavy mechanic's wire or equivalent. DO NOT disconnect the hydraulic brake flexible hose from the caliper.
  24.  
  25. Install a large C-clamp (1) over the body of the brake caliper (3) with the C-clamp ends against the rear of the caliper body and against an old inner brake pad or a wood block (2) installed against the caliper pistons.
  26.  
  27. Tighten the C-clamp until the caliper pistons are compressed completely into the caliper bore.

    Click image to see an enlarged view

    Fig. Compressing caliper piston into bore

  28.  
  29. Remove the C-clamp and the old brake pad or wood block from the caliper.
  30.  
  31. Remove the inboard and outboard brake pads from the brake caliper mounting bracket.
  32.  
  33. Remove and inspect the brake pad retainers.
  34.  

To install:

  1. Inspect the brake caliper bolt suspension boots for cuts, tears, or deterioration. If damaged, replace the pin boots.
  2.  
  3. Inspect the brake caliper pin bolts for damage or corrosion. Replace if damaged or corroded. Do not attempt to clean away corrosion. Corrosion is typically caused by damaged pin boots.
  4.  
  5. Inspect the piston boot for deterioration, replace if damaged.
  6.  
  7. Install the brake pad retainers into the brake caliper bracket.
  8.  
  9. Pivot the brake caliper down over the brake pads and into the brake caliper bracket.
  10.  
  11. Apply a thin coat of high temperature silicone lube to the front brake caliper pin bolts.
  12.  
  13. Insert the lower brake caliper pin bolt.
  14.  
  15. Tighten the brake caliper pin bolts to 83 ft. lbs. (113 Nm). For the (JL9) brake system, tighten to 27 ft. lbs. (36 Nm).
  16.  
  17. Install the tire and wheel assembly.
  18.  
  19. Lower the vehicle.
  20.  
  21. With the engine OFF, gradually apply the brake pedal to approximately 2 / 3  of its travel distance.
  22.  
  23. Slowly release the brake pedal.
  24.  
  25. Wait 15 seconds, then repeat steps 10-11 until a firm brake pedal apply is obtained; this will properly seat the brake caliper pistons and brake pads.
  26.  
  27. Fill the brake master cylinder reservoir to the proper level.
  28.  
  29. Test drive vehicle, burnish the pads and rotors.
  30.  

CTS
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Remove 2 / 3 of the brake fluid from the master cylinder reservoir.
  4.  
  5. Remove the front wheel.
  6.  
  7. Remove the caliper mounting bolts.
  8.  
  9. Remove the caliper from the steering knuckle without disconnecting the brake hose.
  10.  
  11. Suspend the caliper from the coil spring with wire. Do not let the caliper hang from the brake hose.

    Click image to see an enlarged view

    Fig. Supporting the front caliper-CTS

  12.  
  13. Remove brake pads from anchor bracket.
  14.  

To install:

  1. Fully seat the caliper piston into the bore using a large C-clamp.
  2.  
  3. Lubricate the brake caliper mounting surfaces.

    Click image to see an enlarged view

    Fig. Installing the inboard disc brake pad into the front caliper-CTS



    Click image to see an enlarged view

    Fig. Installing the outboard disc brake pad in the front caliper-CTS

  4.  
  5. Install the brake pads onto the anchor bracket using new shims and clips.
  6.  
  7. Place the caliper onto the anchor bracket and install the mounting bolts.
  8.  
  9. Torque the mounting bolts to 63 ft. lbs. (85 Nm).
  10.  
  11. Install the wheel and tire assembly and torque to specification.
  12.  
  13. Lower the vehicle.
  14.  
  15. Pump the brake pedal several times to seat the brake pads.
  16.  
  17. Check the fluid level in the master cylinder and fill as necessary.
  18.  
  19. Road test the vehicle for proper brake operation.
  20.  

CTS-V
  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
  4.  
  5. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
  6.  
  7. Remove the front wheel.
  8.  
  9. Holding the lower end of the retainer (1) down and using a hammer and punch carefully tap the lower caliper guide pin (2) inward out of the caliper.

    Click image to see an enlarged view

    Fig. Caliper guide pin-CTS-V

  10.  
  11. Rotate the brake pad retainer (1) upward and remove the retainer.
  12.  
  13. Using a hammer and punch tap the upper caliper to brake pad mounting pin (2) inward out of the caliper.

    Click image to see an enlarged view

    Fig. Upper caliper pin-to-brake pad mounting pin-CTS-V

  14.  
  15. Carefully insert a plastic flat-bladed trim tool between the rotor and inboard brake pad.
  16.  
  17. Carefully apply pressure to the inboard brake pad until both caliper inner pistons are fully compressed into the caliper piston bores.
  18.  
  19. Carefully insert a plastic flat-bladed trim tool between the rotor and outboard brake pad.
  20.  
  21. Carefully apply pressure to the outboard brake pad until both caliper outer pistons are fully compressed into the bores.
  22.  
  23. Remove the brake pads from the caliper.
  24.  

To install:

  1. Install the brake pads to the caliper.
  2.  
  3. Install the upper caliper guide pin (2) through the caliper, inner and outer brake pads.
  4.  
  5. Using a hammer and punch seat the upper guide pin (2) to the outer caliper half. Ensure that the caliper guide pin is seated into the outer caliper pin seat.
  6.  
  7. Install the brake pad retainer (1) under the upper caliper pin assembly.
  8.  
  9. Rotate brake pad retainer (1) down.
  10.  
  11. Carefully apply pressure downward on the lower end of the brake pad retainer.
  12.  
  13. Carefully install the lower caliper guide pin (2) through the caliper, inner and outer brake pads.
  14.  
  15. Using a hammer and punch seat the upper guide pin (2) to the outer caliper half. Ensure that the caliper guide pin is seated into the outer caliper pin seat. Ensure that the brake pad retainer is centered retaining both brake pads.
  16.  
  17. Install the front wheel.
  18.  
  19. Pump the brake pedal several times to seat the brake pads.
  20.  
  21. Check the fluid level in the master cylinder and fill as necessary.
  22.  
  23. Road test the vehicle for proper brake operation.
  24.  

 
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