Caution / Notice / Hint

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

NECESSARY PROCEDURE AFTER PARTS REMOVED/INSTALLED/REPLACED (FOR HV MODEL)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
Main body ECU (multiplex network body ECU)	ECU configuration	-	Refer to ECU CONFIGURATION [11/2023 - ]
Main body ECU (multiplex network body ECU)	Code registration	Wireless Door Lock Control System Smart Key System (for Entry function) Smart Key System (for Start function) Engine start function Hybrid control system cannot be started	for HV Model: Refer to REGISTRATION [11/2023 - ] for Gasoline Model: Refer to REGISTRATION [11/2023 - ]

WARNING:

Be sure to read Precaution thoroughly before servicing.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Refer to PARTS LOCATION [11/2023 - 11/2024] , or refer to PARTS LOCATION [11/2024 - ]

NOTE:

After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Refer to BEFORE DISCONNECTING BATTERY [11/2023 - ]
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 Procedures are not Performed	Necessary Procedures	Link
Stop and Start System	Idle the engine for approximately 5 to 60 minutes or drive the vehicle until stop and start control is permitted	Refer to PRECAUTION [11/2023 - ]
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 Procedures are not Performed	Necessary Procedures	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.	-