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 during HV supply stack sub-assembly removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure	Necessary Procedures	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Auxiliary battery terminal is disconnected/reconnected	Perform steering sensor zero point calibration	Lane control system	Refer to INITIALIZATION [11/2018 - 12/2021]
		Parking support brake system*
		Pre-collision system
	Memorize steering angle neutral point	Parking assist monitor system	Refer to INITIALIZATION [11/2018 - 10/2022]
	Memorize steering angle neutral point	Panoramic view monitor system	Refer to INITIALIZATION [11/2018 - 10/2022]
	Reset back door close position	Power back door system	Refer to INITIALIZATION [11/2018 - 10/2023]
	Back door lock initialization	Power door lock control system	Refer to INITIALIZATION [11/2018 - ]
Replacement of No. 1 HV supply stack sub-assembly Replacement of No. 2 HV supply stack sub-assembly	Battery status info update Prediagnostic battery charge Battery diagnosis	HV battery status information cannot be updated	Refer to UTILITY [06/2020 - ]
Replacement of battery ECU assembly Replacement of HV battery junction block assembly	Current sensor offset learning	DTCs are stored	Refer to PROCEDURE - Step 14
Replacement of hybrid battery terminal block	Perform high voltage fuse accumulated load history reset	DTCs are stored	Refer to UTILITY [06/2020 - ]

*: When performing learning using the Techstream.

WARNING:

Orange wire harnesses and connectors indicate high-voltage circuits. To prevent electric shock, always follow the procedure described in the appropriate service information .

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Refer to PRECAUTION [06/2020 - ]

To prevent electric shock, wear insulated gloves when working on wire harnesses and components of the high voltage system.

The hybrid system has high-voltage circuits. Accidents, such as electric shock, or electric leaks may result if the hybrid system is not operated in a correct manner. Make sure to follow the correct procedure.
When disposing of an HV battery or HV supply stack sub-assembly, make sure to return them through an authorized collection agent who is capable of handling them safely.
Before returning an HV battery, make sure to perform a recovery inspection.
Before returning an HV supply stack sub-assembly, make sure to perform a recovery inspection.
Make a note of the output DTCs as some of them may be necessary for "Recovery Inspection" of the HV battery and HV supply stack sub-assemblies.

NOTE:

When replacing the No. 1 HV supply stack sub-assembly or No. 2 HV supply stack sub-assembly, it is necessary to check, adjust and equalize the SOC of the HV battery. Otherwise, the engine may run longer than normal, resulting in a decrease in fuel efficiency.
Refer to BASIC INSPECTION [06/2020 - 12/2021]
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Refer to PRECAUTION [11/2018 - ]