Replacement [11/2021 - ]: Procedure

Refer to PROCEDURE - Step 8 [11/2021 - 03/2023] , or refer to PROCEDURE - Step 8 [03/2023 - 03/2024] , or refer to PROCEDURE - Step 8 [03/2024 - ]

Refer to PROCEDURE - Step 9 [11/2021 - 03/2023] , or refer to PROCEDURE - Step 9 [03/2023 - 03/2024] , or refer to PROCEDURE - Step 9 [03/2024 - ]

Refer to PROCEDURE - Step 10 [11/2021 - 03/2023] , or refer to PROCEDURE - Step 10 [03/2023 - 03/2024] , or refer to PROCEDURE - Step 10 [03/2024 - ]

1. Connect a hose with an inside diameter of 8.3 mm (0.327 in.) to the radiator drain cock as shown in the illustration.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Hose

2. Loosen the radiator drain cock plug.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1

   Radiator Cap Sub-assembly

   *2

   Radiator Drain Cock Plug

3. 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.

4. Tighten the radiator drain cock plug by hand.
5. Disconnect the hose from the radiator drain cock.

1. Slowly fill the radiator assembly with engine coolant.

   Specified Capacity

   8.7 liters (9.2 US qts, 7.7 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. [*1]
3. Slowly pour engine coolant into the radiator reserve tank assembly until it reaches the FULL line. [*2]

   Courtesy 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. [*3]
7. Bleed air from the cooling system. [*4]
   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.
   2. Squeeze the No. 1 radiator hose and No. 2 radiator hose several times by hand to bleed air.
      WARNING:

      • Wear protective gloves.
      • Be careful as the No. 1 radiator hose and No. 2 radiator hose is hot.
      • Keep your hands away from the fan.
      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 ignition switch off. [*5]
9. Wait until the engine coolant cools down. [*6]
10. Check that the engine coolant level is between the FULL line and LOW line. [*7]

    HINT: 

    • If the engine coolant level is below the LOW line, repeat steps from [*1] to [*7].
    • If the engine coolant level is above the FULL line, drain the engine coolant until the engine coolant level is between the FULL line and LOW line.

Refer to PROCEDURE - Step 1

Refer to PROCEDURE - Step 83 [11/2021 - 03/2023] , or refer to PROCEDURE - Step 84 [03/2023 - ]