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Home >> Lexus >> 2020 >> LS 500h AWD >> Repair and Diagnosis >> Maintenance >> Procedures >> Maintenance - Service Information (1 Of 2) >> Differential Oil >> Replacement [10/2023 - ] >> Procedure

Replacement [10/2023 - ]: Procedure

  1. AIR SUSPENSION CONTROL PROHIBITED (w/ Air Suspension) 

    Refer to PRECAUTION [10/2017 - ]

  2. DRAIN DIFFERENTIAL OIL 
    1. Stop the vehicle on a level surface.
    2. Front Differential:
      1. Remove the No. 1 engine under cover assembly.

        Refer to PROCEDURE - Step 18

      2. Remove the No. 2 engine under cover assembly.

        Refer to PROCEDURE - Step 20

      3. Remove the strut bar bracket support sub-assembly.

        Refer to PROCEDURE - Step 22

      4. GTY780090Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Using a 10 mm socket hexagon wrench, remove the front differential filler plug (A) and gasket.

      5. Using a 10 mm socket hexagon wrench, remove the front differential drain plug (B) and gasket to drain the oil.
      6. Using a 10 mm socket hexagon wrench, install a new gasket and the front differential drain plug (B).

        Torque: 39.2 N.m (400 kgf/cm, 29 ft.lbf) 

    3. Rear differential:
      1. Using a 10 mm socket hexagon wrench, remove the rear differential filler plug and gasket.
        GTY804910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Using a 10 mm socket hexagon wrench, install a new gasket and the rear differential drain plug.
        GTY804914Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Using a 10 mm socket hexagon wrench, install a new gasket and the rear differential drain plug.

        Torque: 49 N.m (500 kgf/cm, 36 ft.lbf) 

  3. ADD DIFFERENTIAL OIL 
    1. Front differential:
      1. Add differential oil so that the oil level is between 0 to 5 mm (0 to 0.196 in.) from the bottom lip of the differential filler plug opening.
        GTY804218Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a 0 to 5 mm (0 to 0.196 in.)
        NOTE:
        • Stop the vehicle on a level surface.
        • Too much or too little oil will lead to differential problems.
        • After changing the oil, drive the vehicle and then check the oil level again.

        Oil Type

        Toyota genuine differential gear oil LT 75W-85 GL-5 or equivalent

        Standard Differential Oil Capacity

        0.60 to 0.70 liters (0.63 to 0.74 US qts, 0.53 to 0.62 Imp. qts)

      2. Using a 10 mm socket hexagon wrench, install a new gasket and the front differential filler plug.

        Torque: 39.2 N.m (400 kgf/cm, 29 ft.lbf) 

      3. Install the strut bar bracket support sub-assembly.

        Refer to PROCEDURE - Step 113

      4. Install the No. 2 engine under cover assembly.

        Refer to PROCEDURE - Step 115

      5. Install the No. 1 engine under cover assembly.

        Refer to PROCEDURE - Step 117

    2. Rear differential:
      1. Add differential oil and check that there is oil at the bottom lip of the differential filler plug hole.
        GTY1212648Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        NOTE:
        • Too much or too little oil will lead to differential problems.
        • After changing the oil, drive the vehicle and then check the oil level again.

        Oil Type

        Toyota genuine differential gear oil LT 75W-85 GL-5 or equivalent

        Standard Differential Oil Capacity

        1.30 to 1.40 liters (1.37 to 1.48 US qts, 1.14 to 1.23 Imp. qts)

      2. Using a 10 mm socket hexagon wrench, install a new gasket and the rear differential filler plug.

        Torque: 49 N.m (500 kgf/cm, 36 ft.lbf)