Change Automatic Transmission Fluid Only As Necessary.
Generally, it is necessary to change automatic transmission fluid only if your vehicle is driven under one of the Special Operating Conditions listed under one of the Scheduled Maintenance Guide or Owners Manual Supplement.
When changing the automatic transmission fluid, use only "Toyota Genuine ATF WS" (ATF JWS3324 or NWS9638) to aid in assuring optimum transmission performance.
Notice: Using automatic transmission fluid other than "Toyota Genuine ATF Type WS" may cause deterioration in shift quality, locking up of your transmission accompanied by vibration, and ultimately damage the automatic transmission of your vehicle.
DRAIN COOLANT (for Inverter)
NOTICE: Collect the drained coolant and measure its volume to establish a benchmark. When adding coolant, make sure to add more coolant than the measured amount.
(a) Remove the inverter reserve tank cap.
(b) Using a hexagon wrench (10 mm), remove the drain plug indicated in the illustration and drain the coolant.
(c) Using a hexagon wrench (10 mm), install the drain plug with a new gasket.
Torque: 39 Nm (398 kgf-cm, 29ft-lbf)
(a) Add coolant from the reserve tank.
(b) Connect the intelligent tester to the DLC3.
(c) Follow the intelligent tester screen to perform the active test of the water pump.
(d) While adding coolant so that the coolant level is kept between the FULL and LOW lines.
HINT: If the water pump operates without a sufficient amount of coolant for approximately 5 seconds, the protective circuit will activate to stop the water pump for approximately 15 seconds. If a sufficient amount of coolant is added, the water pump will start operating automatically.
Standard: When the operational sound volume of the water pump becomes small or when no air bubbles can be seen in the inverter reserve tank sub-assembly, bleeding of the coolant system is complete.
(e) After bleeding is completed, stop the water pump, add coolant to the FULL level, and install the inverter radiator cap.
NOTICE: Make sure to add more coolant than was drained initially.