HYBRID TRANSMISSION FLUID ADJUSTMENT

PROCEDURE


  1. ADD HYBRID TRANSMISSION FLUID


    1. Lift the vehicle.

      Note

      Set the vehicle on a lift so that the vehicle is kept level when it is lifted up (make sure that the tilt angle from the front to rear of the vehicle is within +/- 1°).

    2. Remove the front suspension member brace.

      Click here

    3. Remove the No. 2 engine under cover. (w/ No. 2 Engine Under Cover)

      Click here

    4. A01MRMZ

      Remove the refill plug and gasket from the hybrid vehicle transmission assembly.

    5. A01MS3LC01
      *a Filler Nozzle

      Add hybrid transmission fluid to the refill opening plug until the fluid level reaches the bottom lip of the refill plug opening.

      Note


      • Use Toyota Genuine ATF WS.

      • Be sure to fully insert the filler nozzle into the refill plug opening.

      • Be sure to add hybrid transmission fluid slowly. If hybrid transmission fluid is added quickly, the hybrid transmission fluid may hit internal parts and bounce back, resulting in fluid coming out of the refill plug opening.

      • An insufficient or excessive amount of hybrid transmission fluid may damage the hybrid vehicle transmission assembly.

      • Make sure that the hybrid transmission fluid temperature is 5°C (41°F) or more.

      Reference
      3.8 liters (4.0 US qts, 3.3 Imp.qts)

    6. Temporarily install the refill plug and gasket to the hybrid vehicle transmission assembly.

      Tech Tips

      Reuse the old gasket as the refill plug will be removed again.

    7. Lower the vehicle.

  2. ADJUST HYBRID TRANSMISSION FLUID


    1. Put the engine in inspection mode.

      Click here

    2. Idle the engine for one minute with the power switch on (READY).

      Tech Tips

      The oil pump will operate to circulate hybrid transmission fluid through the oil cooler system.

    3. Lift the vehicle. [*1]

    4. A01MRMZ

      Turn the power switch off, wait for 1 minute, and then remove the refill plug and gasket from the hybrid vehicle transmission assembly. [*2]

      Note

      After the power switch is turned off, hybrid transmission fluid will flow back from the oil cooler system to the hybrid vehicle transmission assembly and the fluid level will rise. Make sure to perform steps [*1] to [*5] within 20 minutes.

    5. A01MT0IC01
      *a 0 to 5 mm (0 to 0.197 in.)

      Add hybrid transmission fluid until the fluid level is between 0 to 5 mm (0 to 0.197 in.) from the bottom lip of the refill plug opening. [*3]

      Note


      • Use Toyota Genuine ATF WS.

      • Be sure to fully insert the filler nozzle into the refill plug opening.

      • Be sure to add hybrid transmission fluid slowly. If hybrid transmission fluid is added quickly, the hybrid transmission fluid may hit internal parts and bounce back, resulting in fluid coming out of the refill plug opening.

      • An insufficient or excessive amount of hybrid transmission fluid may damage the hybrid vehicle transmission assembly.

      • Make sure that the hybrid transmission fluid temperature is 5°C (41°F) or more.

    6. After adding hybrid transmission fluid, leave it for 30 seconds so that the fluid surface can become still again, and then check that the fluid level is between 0 to 5 mm (0 to 0.197 in.) from the bottom lip of the refill plug opening. [*4]

      If the fluid level is too low, add hybrid transmission fluid.

      Click here

    7. Install the refill plug and a new gasket to the hybrid vehicle transmission assembly. [*5]

      Torque:
      40 N*m  { 408 kgf*cm, 30 ft.*lbf }

    8. Install the No. 2 engine under cover. (w/ No. 2 Engine Under Cover)

      Click here

    9. Install the front suspension member brace.

      Click here

    10. Lower the vehicle.