Replacement [10/2019 - ]: Procedure

Refer to PROCEDURE - Step 1 [02/2019 - 06/2020] , or refer to PROCEDURE - Step 1 [06/2020 - 08/2020] , or refer to PROCEDURE - Step 1 [08/2020 - 12/2021] , or refer to PROCEDURE - Step 1 [12/2021 - 10/2022] , or refer to PROCEDURE - Step 1 [10/2022 - 10/2023] , or refer to PROCEDURE - Step 1 [10/2023 - ]

1. Make sure that the vehicle will remain level, and lift the vehicle.
2. Using a 10 mm union nut wrench and 10 mm straight hexagon, remove the filler plug and gasket from the rear traction motor with transaxle assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	10 mm Union Nut Wrench
   *2	10 mm Straight Hexagon

3. Using a 10 mm socket hexagon wrench, remove the drain plug and gasket from the rear traction motor with transaxle assembly and drain the hybrid transaxle fluid.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Drain Plug

4. Using a 10 mm socket hexagon wrench, install the drain plug and a new gasket to the rear traction motor with transaxle assembly.

   Torque: 50 N.m (510 kgf/cm, 37 ft.lbf) 

5. Add hybrid transaxle fluid until the hybrid transaxle fluid level is between 0 to 5 mm (0 to 0.196 in.) from the bottom lip of the filler plug opening. [*]

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Filler Plug
   *a	Filler Nozzle
   *b	0 to 5 mm (0 to 0.196 in.)

   NOTE:

   • Use Toyota Genuine ATF WS.

     Using transmission fluid other than the above type may cause abnormal noise or vibration, or ultimately damage the transmission of your vehicle.

   • Be sure to fully insert the filler nozzle into the filler plug opening.
   • Be sure to add hybrid transaxle fluid slowly. If hybrid transaxle fluid is added quickly, the hybrid transaxle fluid may hit internal parts and bounce back, resulting in hybrid transaxle fluid coming out of the filler plug opening.
   • Be sure to directly check that the hybrid transaxle fluid level is within the specified range.
   • An insufficient or excessive amount of hybrid transaxle fluid may damage the rear traction motor with transaxle assembly.

   Reference

   1.7 liters (1.8 US qts, 1.5 Imp. qts)

6. After adding hybrid transaxle fluid, leave the vehicle for 30 seconds so that the hybrid transaxle fluid surface can become still again, and then check that the hybrid transaxle fluid level is between 0 to 5 mm (0 to 0.196 in.) from the bottom lip of the filler plug opening. (If the hybrid transaxle fluid level is too low, return to the Add Hybrid Transaxle Fluid procedure [*].)
   NOTE:

   After adding hybrid transaxle fluid, make sure to check the hybrid transaxle fluid level.

7. Using a 10 mm union nut wrench and 10 mm straight hexagon, install the filler plug and a new gasket to the rear traction motor with transaxle assembly.

   Specified tightening torque 

   Torque: 39 N.m (398 kgf/cm, 29 ft.lbf) 

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	10 mm Union Nut Wrench
   *2	10 mm Straight Hexagon
   *a	Torque Wrench Fulcrum Length

   HINT: 

   • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

     Refer to PRECAUTION [11/2018 - ]

   • When using a union nut wrench (fulcrum length of 22 mm (0.8661 in.)) + torque wrench (fulcrum length of 180 mm (7.0866 in.)): 34.8 N.m (355 kgf/cm, 26 ft.lbf)
8. Check for hybrid transaxle fluid leaks.
9. Lower the vehicle.

Refer to PROCEDURE - Step 36 [02/2019 - 06/2020] , or refer to PROCEDURE - Step 36 [06/2020 - 12/2021] , or refer to PROCEDURE - Step 36 [12/2021 - 10/2023] , or refer to PROCEDURE - Step 37 [10/2023 - ]