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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 40 (Hybrid Battery Control System - Service Information (2 Of 2)) >> HV Battery >> Charging [11/2023 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced when charging the HV battery are shown below.

WARNING:
  • Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the repair information.

    Refer to PRECAUTION [11/2023 - ]

    GTY588409Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  • To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.
    GTY588386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE:
  • After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 2 minutes before disconnecting the cable from the negative (-) auxiliary battery terminal.
  • When the cable is disconnected from the negative (-) auxiliary battery terminal and the security lock setting has been enabled, multi-display operations will be disabled upon next startup unless the password is entered. Be sure to check the security lock setting before disconnecting the cable from the negative (-) auxiliary battery terminal.

HINT: 

When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

LEARNING COMPLETES WHEN VEHICLE IS DRIVEN

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Lane Control System Perform steering sensor zero point calibration Refer to INITIALIZATION [12/2019 - ]
Pre-collision System
Lighting System (EXT) (w/ AFS)
LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed Necessary Procedure Link
Power Door Lock Control System Initialize back door lock Refer to INITIALIZATION [11/2023 - ]
Power Back Door System Reset back door close position Refer to INITIALIZATION [11/2023 - ]
Air Conditioning System After the ignition switch is turned to ON, the servo motor standard position is recognized. -
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