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Home >> Toyota >> 2018 >> Prius Two >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Battery Management Systems >> Hybrid Battery Control System - Service Information (2 Of 3) >> HV BATTERY (for LITHIUM-ION BATTERY) >> Installation [11/2015 - ] >> Procedure

Installation [11/2015 - ]: Procedure

  1. INSPECT NO. 1 HV BATTERY INTAKE FILTER 

    Refer to INSPECTION [11/2015 - 11/2017] , or refer to INSPECTION [11/2017 - ]

  2. INSTALL HV BATTERY 
    WARNING:

    Wear insulated gloves.

    1. Install the HV battery to the vehicle with the 3 bolts (A) and bolt (B).
      GTY543136Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Bolt (A)
      (Bolt Length: 25 mm (0.984 in.))
      *b Bolt (B)
      (Bolt Length: 24 mm (0.945 in.))

      Torque: 19 N.m (194 kgf.cm, 14 ft./lbf) 

      NOTE:
      • Do not allow foreign matter, such as grease or oil, to adhere to the bolts of the HV battery.
      • To prevent the wire harness from being caught, make sure to bundle the wire harness using insulating tape or equivalent.
      • Use cardboard or another similar material to protect the HV battery and vehicle body from damage.
      • Since the HV battery is very heavy, 2 people are needed to install it. When installing the HV battery, be careful not to damage the parts around it.
      • When removing/installing/moving the HV battery, make sure not to tilt it more than 80°.
      • While lowering the HV battery into the vehicle, do not allow it to contact the vehicle.
      • As bolts with 2 different lengths are used, make sure to install each bolt to the correct position.
      • If the HV battery has been struck or dropped, replace it.
  3. CONNECT FLOOR WIRE 
    WARNING:

    Wear insulated gloves.

    1. Connect the HV battery connector.
    2. Engage the clamp.
  4. INSTALL NO. 4 HV BATTERY PROTECTOR 
    1. Engage the 2 claws to install the No. 4 HV battery protector to the HV battery.
  5. INSTALL HYBRID BATTERY HOSE ASSEMBLY 
    1. Engage the 2 claws to install the hybrid battery hose assembly to the HV battery.
      GTY551781Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the hybrid battery hose assembly to the vehicle.
  6. CONNECT FLOOR WIRE 
    WARNING:

    Wear insulated gloves.

    1. Connect the HV battery junction block assembly connector.
    2. Connect the electric vehicle battery plug assembly connector.
    3. Engage the clamp.
  7. CONNECT FLOOR UNDER WIRE 
    WARNING:

    Wear insulated gloves.

    1. Connect the shield ground to the HV battery.
    2. Connect the 2 HV battery junction block assembly connectors.
      NOTE:

      Make sure that the connectors are connected securely.

  8. INSTALL NO. 1 HV BATTERY COVER PANEL RH 
    WARNING:

    Wear insulated gloves.

    1. Install the No. 1 HV battery cover panel RH to the HV battery with the 2 bolts and 3 nuts.

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

      GTY575597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Battery Cover Lock Striker
      *a Button
      *b Push
    2. Install the battery cover lock striker, then push the button to lock it.
  9. INSTALL BATTERY COOLING BLOWER ASSEMBLY 

    Refer to PROCEDURE - Step 1

  10. INSTALL REAR SEAT CUSHION LEG SUB-ASSEMBLY 
    1. Install the rear seat cushion leg sub-assembly with the 9 bolts.

      Torque: 16 N.m (163 kgf.cm, 12 ft./lbf) 

  11. INSTALL REAR UNDER COVER 
    1. Engage the 2 guides to install the rear under cover to the rear seat cushion leg sub-assembly.
    2. Engage the 2 clips.
  12. INSTALL REAR UNDER SIDE COVER LH 

    Refer to PROCEDURE - Step 30 [11/2015 - 12/2018] , or refer to PROCEDURE - Step 28 [12/2018 - 07/2020] , or refer to PROCEDURE - Step 27 [07/2020 -]

  13. INSTALL REAR DOOR SCUFF PLATE LH 

    Refer to PROCEDURE - Step 47 [11/2015 - 12/2018] , or refer to PROCEDURE - Step 43 [12/2018 - 07/2020] , or refer to PROCEDURE - Step 43 [07/2020 -]

  14. INSTALL REAR UNDER SIDE COVER RH 

    HINT: 

    Use the same procedure as for the LH side.

  15. INSTALL REAR DOOR SCUFF PLATE RH 

    HINT: 

    Use the same procedure as for the LH side.

  16. INSTALL REAR SEAT CUSHION LOCK HOOK 

    Refer to PROCEDURE - Step 1

  17. INSTALL REAR SEAT CUSHION ASSEMBLY 

    Refer to PROCEDURE - Step 2

  18. INSTALL SERVICE PLUG GRIP 

    Refer to INSTALLATION [11/2015 - ]

  19. PERFORM UTILITY 
    NOTE:
    • Perform "Battery Status Info Update" after replacing the malfunctioning HV battery.

      Refer to UTILITY [11/2015 - ]

    • Perform "Prediagnostic Battery Charge" after replacing the malfunctioning HV battery.

      Refer to UTILITY [11/2015 - ]

    • Perform "Battery Diagnosis" after replacing the malfunctioning HV battery.

      Refer to UTILITY [11/2015 - ]