2021 Lexus LC 500hFACTORY OEM SERVICE PROCEDURE

Removal [01/2017 - ]: Procedure

  1. REMOVE V-BANK COVER SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 8 [01/2017 - 06/2019] , or refer to PROCEDURE - Step 8 [06/2019 - 05/2023] , or refer to PROCEDURE - Step 8 [05/2023 - ]

  2. REMOVE RADIATOR SUPPORT TO FRAME SEAL RH 

    Refer to PROCEDURE - Step 2

  3. REMOVE LOWER RADIATOR AIR DEFLECTOR 

    Refer to PROCEDURE - Step 3

  4. REMOVE RADIATOR SUPPORT TO CROSS MEMBER BRACE SUB-ASSEMBLY RH 

    Refer to PROCEDURE - Step 14 [01/2017 - 06/2019] , or refer to PROCEDURE - Step 14 [06/2019 - 05/2023] , or refer to PROCEDURE - Step 14 [05/2023 - ]

  5. DRAIN ENGINE COOLANT 

    Refer to REPLACEMENT [01/2017 - ]

  6. DISCONNECT NO. 2 PCV HOSE 
    1. Slide the clip and disconnect the No. 2 PCV hose from the cylinder head cover sub-assembly.
      GTY811203Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE NO. 1 AIR CLEANER INLET 
    1. Pull out the pin of the No. 1 air cleaner inlet and remove it from the air cleaner with air cleaner hose.
      NOTE:

      When removing the No. 1 air cleaner inlet, be careful not to lose the air cleaner support on the underside of the No. 1 air cleaner inlet.

      GTY830653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Pull Out
  8. REMOVE AIR CLEANER WITH AIR CLEANER HOSE 
    1. Disconnect the mass air flow meter sub-assembly connector.
      GTY835174Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the wire harness clamp.
    3. Pull out the 3 air cleaner with air cleaner hose pins from the air cleaner support.
      GTY811255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      When removing the air cleaner with air cleaner hose, be careful not to lose the air cleaner support on the underside of the air cleaner assembly.

    4. Loosen the hose clamp and remove the air cleaner with air cleaner hose from the throttle body with motor assembly.
  9. DISCONNECT NO. 3 WATER BY-PASS HOSE ASSEMBLY 
    1. Detach the 4 clamps to disconnect the motor cable and generator cable.
      GTY835057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the nut to disconnect the No. 3 water by-pass hose assembly.
      GTY810710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE THROTTLE BODY BRACKET 
    1. Remove the 2 nuts and throttle body bracket.
      GTY810670Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 
    1. Disconnect the throttle body with motor assembly connector.
      GTY811252Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 4 bolts and throttle body with motor assembly from the intake air surge tank assembly.
      NOTE:

      If the throttle body with motor assembly has been struck or dropped, replace it.

    3. Slide the 2 clips, disconnect the water by-pass hose and No. 4 water by-pass hose from the throttle body with motor assembly.
      GTY811253Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the gasket from the intake air surge tank assembly.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.