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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 268 (Disc Brakes) >> Repair Instructions >> Rear Brake Caliper Replacement (JL9, J56) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Set the parking brake in Service Mode.
    1. Install a scan tool.
    2. Turn the ignition ON with engine OFF
    3. Select Electronic Brake Control Module.
    4. Select Control Functions.
    5. NOTE:

      Do NOT apply any brake pressure during this step.

    6. Select Rear Brake Caliper Piston Retract.
  2. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  3. Raise and support the vehicle. Lifting and Jacking the Vehicle
  4. Remove the tire and wheel assembly. Tire and Wheel Removal and Installation (without J57)
  5. {If equipped} Rear Disc Brake Pad Wear Sensor - Remove - Rear Disc Brake Pad Wear Sensor Replacement (JL9, J56) 
  6. GM5316625Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electronic parking brake actuator electrical connector. (2)

  7. Retainer (1) - Remove
  8. GM5316644Courtesy of GENERAL MOTORS COMPANY

    Rear Brake Hose (2) - Remove@Rear Brake Caliper - Rear Brake Hose Replacement (J56, JL9)

  9. GM4247250Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • DO NOT use any air tools to remove or install the guide pin bolts. Use hand tools ONLY.
    • Install an open end wrench to hold the caliper guide pin in line with the brake caliper while removing or installing caliper guide pin bolt. DO NOT allow the open end wrench to come in contact with the brake caliper. Allowing the open end wrench to come in contact with the brake caliper will cause a pulsation when the brakes are applied.

    Rear Brake Caliper Guide Pin Bolt (1) - Remove [2x]

  10. GM4247252Courtesy of GENERAL MOTORS COMPANY

    Rear Brake Caliper (1) - Remove

  11. Parking Brake Actuator - Remove - Parking Brake Actuator Replacement (J56, JL9)
  12. Transfer components as necessary.