Caution / Notice / Hint

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during transfer assembly removal/installation are shown below.

NECESSARY PROCEDURES AFTER PARTS REMOVED/INSTALLED/REPLACED

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Battery terminal is disconnected/reconnected	Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted	Stop and Start System	Refer to PRECAUTION [10/2022 - 11/2023]
	Perform steering sensor zero point calibration	Lane Control System	Refer to INITIALIZATION [12/2019 - ]
		Parking Support Brake System*1
		Pre-collision System
		Lighting System (EXT) (w/ AFS)
	Initialize back door lock	Power Door Lock Control System	Refer to INITIALIZATION [12/2019 - 11/2023]
	Reset back door close position	Power Back Door System	Refer to INITIALIZATION [12/2019 - 11/2023]
Replacement of ECM	Perform Vehicle Identification Number (VIN) registration	DTC is output	Refer to REGISTRATION [10/2022 - ]
	Heavy knock history Save history Write history	-	Refer to REGISTRATION [10/2022 - ]
	Code registration	Engine start function	Refer to REGISTRATION [10/2022 - 11/2023]
	If transaxle compensation code read from ECM Perform reset memory*2 Transfer transaxle compensation code Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	for Initialization: Refer to INITIALIZATION [10/2022 - ] for Registration: Refer to REGISTRATION [10/2022 - ]
	If transaxle compensation code not read from ECM Perform reset memory*2 Reset transaxle compensation code Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency
Replacement of engine assembly Gas leak from exhaust system is repaired	Inspection after repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [10/2022 - ]
Replacement of starter assembly*3	Clear the number of starter operations	Stop and Start System	Refer to REGISTRATION [10/2022 - 11/2023]
Replacement of battery	Integrated Current Value Initialization Switch Battery Type	Stop and Start System	Refer to REGISTRATION [10/2022 - 11/2023]
Replacement of automatic transaxle assembly	Perform reset memory Input transaxle compensation code into ECM Perform road test to allow ECM to learn	Large shift shock Deterioration of fuel efficiency	for Initialization: Refer to INITIALIZATION [10/2022 - ] for Registration: Refer to REGISTRATION [10/2022 - ]
Replacement of automatic transaxle fluid	ATF thermal degradation estimate reset	The value of the Data List item "ATF Thermal Degradation Estimate" is not estimated correctly	Refer to INITIALIZATION [10/2022 - ]
for Dynamic Torque Control AWD System: Replacement of front 4WD linear solenoid (Transfer assembly)	ECU data initialization Disconnect system function check	Dynamic Torque Control AWD System	Refer to CALIBRATION [12/2019 - ]
for Dynamic Torque Vectoring AWD system: Replacement of front 4WD linear solenoid (Transfer assembly)	ECU data initialization Disconnect system function check	Dynamic Torque Vectoring AWD System	Refer to CALIBRATION [12/2019 - ]
Front wheel alignment adjustment	Perform "Reset Memory" Perform "Calibration"	VSC is disabled or malfunctions DTCs are output Slip indicator light illuminates ABS warning light illuminates	Refer to UTILITY [12/2019 - 11/2023]
Replacement of front bumper assembly*4	Front television camera view adjustment	Panoramic View Monitor System	Refer to CALIBRATION [10/2022 - 11/2023]
Suspension, tires, etc.*5	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System	Refer to CALIBRATION [10/2022 - ]
	Parking assist ECU initialization	Panoramic View Monitor System	Refer to CALIBRATION [10/2022 - 11/2023]
	Perform headlight ECU sub-assembly LH initialization	Lighting System (EXT) (w/ AFS)	Refer to INITIALIZATION [12/2019 - 11/2023]
Replacement or removal and installation of 2 or more parts: Front television camera assembly, radiator grille sub-assembly or front bumper assembly Rear television camera assembly Side television camera assembly LH or outer rear view mirror assembly LH Side television camera assembly RH or outer rear view mirror assembly RH	Television camera view adjustment	Panoramic View Monitor System	Refer to CALIBRATION [10/2022 - 11/2023]

*1: Learning can also be performed using the GTS.

*2: Not necessary when ECM replaced with new one

*3: When the starter assembly is replaced, "ST relay" must be also replaced

*4: Even when not replacing the part, it is necessary to perform the specified necessary procedures after installation.

*5: If the vehicle height has changed due to suspension or tire replacement

WARNING:

The engine assembly with transaxle is very heavy. Be sure to follow the procedure described in the repair information, or the engine lifter may suddenly drop or the engine assembly with transaxle may fall off the engine lifter.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	An Object Exceeding Weight Limit of Engine Lifter

To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.

The automatic transaxle assembly is very heavy. Be sure to follow the procedure described in the repair information, or the transmission jack may suddenly drop.

*a	An Object Exceeding Weight Limit of Transmission Jack

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.
If the ECM has been struck or dropped, replace it.