HYBRID TRANSMISSION FLUID ADJUSTMENT

BEFORE REFILLING TRANSMISSION

• This transmission requires Toyota Genuine ATF WS.

• After servicing the transmission, you must refill the transmission with the correct amount of fluid.

• Maintain the vehicle in a horizontal position while adjusting the fluid level.

• If fluid has seeped out or an oil cooler hose has been disconnected, proceed to "FILL TRANSMISSION PAN". If any of the entire transmission, transmission pan, drain plug, transmission wire or oil pressure switches is replaced, proceed to "FILL TRANSMISSION".

• If the entire transmission is replaced, proceed to the "PERFORM FLUID CIRCULATION" procedure.

  Tech Tips

  New transmissions are already filled with transmission fluid.

FILL TRANSMISSION PAN WITH FLUID

FILL TRANSMISSION

PERFORM FLUID CIRCULATION

1. Allow the engine to idle with the air conditioning OFF.

2. Move the shift lever through the entire gear range to circulate fluid.

3. Enter the following menus: Powertrain / Hybrid Control / Data List / T/M Oil Temperature and Line Pressure.

4. Check T/M Oil Temperature and Line Pressure.

5. Before adjusting the fluid amount, make sure that Line Pressure is OFF with the power switch on (READY).

   Standard
   Line Pressure: OFF

   Note

   
   

   • If Line Pressure is ON, the fluid amount cannot be adjusted accurately.

   • If Line Pressure is still ON even after the power switch has been turned on (READY), troubleshoot the system in accordance with the output DTC. Adjust the fluid amount only after making sure that Line Pressure is OFF.

6. After adjusting the fluid amount, make sure that Line Pressure remains OFF with the power switch on (READY).

   Standard
   Line Pressure: OFF

   Note

   
   

   • If Line Pressure is ON, the fluid amount has not been adjusted accurately.

   • Turn the power switch on (READY) or troubleshoot the system in accordance with the output DTC. Then adjust the fluid amount only after making sure that Line Pressure is OFF.

7. Allow the engine to idle until the fluid temperature reaches 30°C (86°F). Proceed to the next step to check fluid temperature.

   Tech Tips

   The fluid temperature should be less than 40°C (104°F) before starting the engine.

CHECK FLUID TEMPERATURE

1. When using the GTS:

   
   

   1. Turn the power switch off.

   2. Connect the GTS to the DLC3.

   3. Turn the power switch on (READY).

      Note

      Check that electrical systems such as the air conditioning system, audio system and lighting system are off.

   4. Turn the GTS on.

   5. Enter the following menus: Powertrain / Hybrid Control / Active Test / Connect the TC and TE1 / ON.

   6. Enter the following menus: Powertrain / Hybrid Control / Data List / T/M Oil Temperature and Line Pressure.

   7. Check Line Pressure.

      Standard
      Line Pressure: OFF

      Note

      
      

      • Make sure that Line Pressure is OFF.

      • If Line Pressure is ON, the fluid amount cannot be adjusted accurately.

      • If Line Pressure is still ON even after the power switch has been turned on (READY), troubleshoot the system in accordance with the output DTC. Adjust the fluid amount only after making sure that Line Pressure is OFF.

   8. Move the shift lever from P to D.

   9. Move the shift lever to D, and quickly move back and forth between N and D (once within 1.5 seconds) for at least 6 seconds. This will activate fluid temperature detection mode.

      Note

      The D shift indicator remains illuminated for 2 seconds and then turns off.

   10. Move the shift lever to P.

   11. Push the Active Test menu: Connect TC and TE1/ OFF.

       Note

       
       

       • Make sure to turn Connect TC and TE1 off. If it is not turned off, the fluid level will not be adjusted correctly.

       • If Connect TC and TE1 is not turned off, the fluid temperature may quickly exceed the allowable temperature adjustment range.

2. When not using the GTS (Using the D shift indicator):

   
   
   1. 

      Text in Illustration

      *a	Front view of DLC3

      Using SST, connect terminals TC and CG of the DLC3.

      SST

      09843-18040

   2. Turn the power switch on (READY).

      Note

      Check that electrical systems such as the air conditioning system, audio system and lighting system are off.

   3. Move the shift lever from P to D.

   4. Move the shift lever back and forth between N and D at 1.5 second intervals for 6 seconds.

   5. Move the shift lever to D, and quickly move back and forth between N and D (once within 1.5 seconds) for at least 6 seconds. This will activate fluid temperature detection mode.

      Note

      The D shift indicator remains illuminated for 2 seconds and then turns off.

   6. Move the shift lever to P.

   7. Disconnect SST from the DLC3.

      Note

      
      

      • Make sure to disconnected terminals TC and CG. If they are not disconnected, the fluid level will not be adjusted correctly.

      • If terminals TC and CG are not disconnected, the fluid temperature may quickly exceed the allowable temperature adjustment range.

3. Allow the engine to idle until the fluid temperature reaches 30 to 40°C (86 to 104°F).

4. The D shift indicator will come on again when the fluid temperature reaches 46°C (115°F) and will blink when it exceeds 51°C (124°F).

   Tech Tips

   Adjust the transmission fluid level when the "D" shift position indicator is illuminated.

   
   

   • If the "D" shift position indicator is not illuminated, idle the engine to warm it up until the "D" shift position indicator illuminates.

   • If the "D" shift position indicator is illuminated, immediately begin to adjust the fluid level.

   • If the "D" shift position indicator is blinking, stop the engine to cool the fluid. Once the fluid temperature drops to the appropriate level, perform the fluid level adjustment procedure again.

   D Shift Indicator Indication of ATF Temperature

   Below Proper Temperature	Proper Temperature	Higher than Proper Temperature
   Data List: [A/T Oil Temperature 1] 30°C (86°F) or less	Data List: [A/T Oil Temperature 1] 30 to 40°C (86 to 104°F)	Data List: [A/T Oil Temperature 1] 40°C (104°F) or higher
   D shift indicator: Turn off	D shift indicator: Turn on	D shift indicator: Blinking

ADJUST FLUID LEVEL

1. 

   Text in Illustration

   *1	Overflow Plug
   *2	Overflow Tube

   Remove the overflow plug. At the proper fluid inspection temperature, check the fluid amount.

   If the ATF flows from the overflow tube and the ATF flows in a thin stream, the fluid amount is normal.

2. 

   Text in Illustration

   *1	Overflow Plug

   Install a new gasket and the overflow plug.

   Torque:

   20 N*m  { 204 kgf*cm, 15 ft.*lbf }

3. Install the No. 2 engine under cover Click here.

4. Install the front suspension member brace Click here.

5. Lower the vehicle.

6. After adjusting the fluid amount, confirm that Line Pressure remains OFF with the power switch on (READY).

   Standard
   Line Pressure: OFF

   Note

   
   

   • If Line Pressure is ON, the fluid amount has not been adjusted accurately.

   • Turn the power switch on (READY) or troubleshoot the system in accordance with the output DTC. Then adjust the fluid amount only after making sure that Line Pressure is OFF.

7. Turn the power switch off.

   Tech Tips

   Fluid temperature detection mode will be canceled if the power switch is turned off.