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Replacement [10/2022 - ]: Procedure

  1. DRAIN ENGINE COOLANT (for Engine) 
    WARNING:

    Do not remove the radiator cap sub-assembly or radiator drain cock plug while the engine and radiator assembly are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.

    1. Remove the bolt and clip.
      GTY880474Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Pull down the No. 1 engine under cover.
      NOTE:

      Do not damage the No. 1 engine under cover.

    3. Connect a hose with an inside diameter of 8.3 mm (0.327 in.) to the radiator drain cock as shown in the illustration.
      GTY1108948Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Hose
    4. Loosen the radiator drain cock plug.
      GTY1106311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Radiator Cap Sub-assembly *2 Radiator Drain Cock Plug
    5. Remove the radiator cap sub-assembly. Then drain the engine coolant.

      HINT: 

      Collect the engine coolant in a container and dispose of it according to the regulations in your area.

    6. Tighten the radiator drain cock plug by hand.
    7. Disconnect the hose from the radiator drain cock.
    8. Install the bolt and clip.

      Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf) 

  2. ADD ENGINE COOLANT (for Engine) 
    1. Slowly fill the radiator assembly with engine coolant.

      Specified Capacity

      11.6 liters (12.3 US qts, 10.2 Imp. qts)

      NOTE:

      Do not substitute plain water for engine coolant.

      HINT: 

      TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damaging the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology is a combination of low phosphates and organic acids).

    2. Remove the reserve tank cap.
    3. Slowly pour engine coolant into the radiator reserve tank assembly until it reaches the FULL line.
      GTY921277Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a FULL Line
      *b LOW Line
      NOTE:

      Do not substitute plain water for engine coolant.

    4. Squeeze the No. 1 radiator hose and No. 2 radiator hose several times by hand, and then check the level of the engine coolant.

      If the engine coolant level is below the FULL line, add engine coolant.

    5. Install the radiator cap sub-assembly.
    6. Install the reserve tank cap.
    7. Start the engine; then run the engine at idle for 10 seconds then 3000 rpm for 15 seconds (repeat 3 times).
      NOTE:
      • If the coolant temperature gauge indicates an excessive temperature, turn off the engine and let it cool.
      • Make sure that the radiator reserve tank assembly still has some engine coolant in it.
      • If the radiator reserve tank assembly does not have enough engine coolant, the engine may overheat or be seriously damaged.
      • If the radiator reserve tank assembly does not have enough engine coolant, perform the following: 1) stop the engine, 2) wait until the engine coolant has cooled down, and 3) add engine coolant until the radiator reserve tank assembly is filled to the FULL line.
    8. Turn the engine switch off.
    9. Remove the radiator cap sub-assembly.
      WARNING:

      Be careful of the release of engine coolant.

    10. Slowly fill the radiator assembly with engine coolant.
    11. Remove the reserve tank cap.
    12. Slowly pour engine coolant into the radiator reserve tank assembly until it reaches the FULL line.
      GTY921277Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a FULL Line
      *b LOW Line
    13. Squeeze the No. 1 radiator hose and No. 2 radiator hose several times by hand, and then check the level of the engine coolant.

      If the engine coolant level is below the FULL line, add engine coolant.

    14. Install the radiator cap sub-assembly.
    15. Install the reserve tank cap.
    16. Bleed air from the cooling system.
      NOTE:
      • Before starting the engine, turn the A/C switch off.
      • Adjust the heater control to the maximum hot setting.
      • Adjust the blower speed to the low setting.
      1. Start the engine and with the shift lever in P and the engine speed at 1500 rpm or more continuously for 5 seconds or more, switch the water control valve to injection control and warm the engine. [*1]
      2. Start the engine; then run the engine at idle for 10 seconds then 3000 rpm for 15 seconds (repeat 15 times). [*2]
        NOTE:
        • If the coolant temperature gauge indicates an excessive temperature, turn off the engine and let it cool.
        • Make sure that the radiator reserve tank assembly still has some engine coolant in it.
        • If the radiator reserve tank assembly does not have enough engine coolant, the engine may overheat or be seriously damaged.
        • If the radiator reserve tank assembly does not have enough engine coolant, perform the following: 1) stop the engine, 2) wait until the engine coolant has cooled down, and 3) add engine coolant until the radiator reserve tank assembly is filled to the FULL line.
      3. Leave the engine at idle for 3 minutes. [*3]
      4. Turn the ignition switch off. [*4]
      5. Wait until the engine coolant cools down. [*5]
      6. Squeeze the No. 1 radiator hose and No. 2 radiator hose several times by hand to bleed air. [*6]
        WARNING:
        • Wear protective gloves.
        • Be careful as the No. 1 radiator hose and No. 2 radiator hose is hot.
      7. Remove the radiator cap sub-assembly. [*7]
        WARNING:

        To avoid injury such as severe burns, do not remove the radiator cap sub-assembly when the engine or radiator assembly is hot.

      8. Check that the coolant level of the radiator assembly is within 20 mm of the inlet. [*8]

        HINT: 

        If the coolant level of the radiator assembly is 20 mm or more from the inlet, add coolant at the specified concentration.

      9. Check that the coolant level of the radiator reserve tank assembly is at the FULL line. [*9]
        GTY921277Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a FULL Line
        *b LOW Line

        HINT: 

        • If the coolant level of the radiator reserve tank assembly is below the FULL line, add coolant until it reaches the FULL line.
        • Repeat the procedure from [*1] to [*9] until the coolant level of the radiator assembly and radiator reserve tank assembly does not decrease.
  3. INSPECT FOR COOLANT LEAK (for Engine) 

    Refer to PROCEDURE - Step 1

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