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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis >> Maintenance >> Procedures >> Maintenance - Service Information (2 Of 2) >> REAR DISC BRAKE PAD (except 4-Pot Caliper) >> Installation [10/2023 - ] >> Procedure

Installation [10/2023 - ]: Procedure

  1. INSTALL REAR DISC BRAKE ANTI-SQUEAL SHIM 
    NOTE:
    • When replacing the rear disc brake pads with new ones, make sure to replace the rear disc brake anti-squeal shim kit at the same time.
    • Do not apply lubricants to the lining surface of the brake pad.
    • Install the anti-squeal shims in the correct position and direction.
    1. Apply a light coat of grease (Part No. 90999-94254) to the rear disc brake pads as shown in the illustration.
      GTY822987Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Grease (Part No. 90999-94254)
      NOTE:

      When applying grease, use the grease enclosed with a rear disc brake pad kit or supplied grease (Part No. 90999-94254) or equivalent.

    2. Apply brake shim grease (Part No. 08887-80409) to the rear disc brake pads and No. 1 anti-squeal shims at the positions shown in the illustration.
      GTY832591Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Disc Brake Pad
      *2 No. 1 Anti-Squeal Shim
      *3 No. 2 Anti-Squeal Shim
      *4 Inner Anti-Rattle Spring
      Brake Shim Grease (Part No. 08887-80409)
      NOTE:
      • Use the grease supplied with the anti-squeal shim kit or brake shim grease (Part No. 08887-80409) or equivalent.
      • Do not apply grease between the No. 1 and No. 2 anti-squeal shims.
    3. Install the inner anti-rattle springs to each of the rear disc brake pads.
    4. Install the No. 1 and No. 2 anti-squeal shims to each of the rear disc brake pads.
  2. INSTALL REAR DISC BRAKE PAD 
    WARNING:

    Be careful not to get pinched by the disc brake cylinder assembly or other parts when installing the rear disc brake pads.

    1. Using SST, push back the rear disc brake piston.
      • SST: 09719-77010 
      NOTE:
      • Make sure the brake fluid does not overflow from the reservoir.
      • Do not forcibly push in the rear disc brake piston.
      GTY808036Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. for RH side:
      GTY808120Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the pad wear indicator wire assembly RH to the rear disc brake pad (inner) with a new pad wear indicator retainer.
        NOTE:
        • The rear disc brake pad with the pad wear indicator wire assembly RH must be installed to the inside position.
        • When replacing the rear disc brake pads with new ones, make sure to replace the pad wear indicator wire assembly RH and pad wear indicator retainer at the same time.
    3. Install the 2 rear disc brake pads to the rear disc brake cylinder assembly LH.
      GTY808125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Install the No. 1 anti-rattle spring to the rear disc brake cylinder LH.
    5. While pressing the area (A), install the 2 hole pins (B).
      GTY837355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. While pressing the area (A), slightly pull out the hole pin (B) from the rear disc brake cylinder assembly LH, and install the pin hold clip.
      GTY826911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. GTY807931Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      for RH side:

      1. Connect the pad wear indicator wire assembly RH to the rear wheel bearing dust deflector with the 4 clamps.
      2. Connect the bleeder plug cap to the rear disc brake bleeder plug.
      3. Connect the pad wear indicator wire connector to the rear speed sensor RH.
  3. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 

    Refer to PROCEDURE - Step 7

  4. INSPECT BRAKE FLUID LEVEL IN RESERVOIR 

    Refer to ON-VEHICLE INSPECTION [10/2023 - ]

  5. INSTALL REAR WHEEL 

    Refer to INSTALLATION [10/2023 - ]

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