Caution / Notice / Hint

WARNING: This page is about a different car, the 2024 Lexus TX 550h+ and 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during rear transaxle motor cooling cooler 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
Auxiliary battery terminal is disconnected/reconnected	Operate the multiplex network master switch assembly (retractable outer mirror switch) to extend and retract the outer rear view mirror assembly	Parking Support Brake System*1	Refer to INITIALIZATION [09/2023 - ]
Suspension parts*2	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System	Refer to CALIBRATION [09/2023 - ]
	Parking assist ECU initialization	Panoramic View Monitor System	Refer to CALIBRATION [09/2023 - ]
	Parking assist ECU initialization	Advanced Park	Refer to CALIBRATION [09/2023 - ]
	w/ Automatic Headlight Beam Level Control System: Perform headlight ECU (headlight assembly LH) initialization	Lighting System (EXT)	Refer to INITIALIZATION [09/2023 - ]
w/ Automatic Headlight Beam Level Control System: Rear height control sensor sub-assembly LH	Perform headlight ECU sub-assembly LH initialization	Lighting system (w/ Automatic Headlight Beam Level Control System)	Refer to INITIALIZATION [09/2023 - ]
Tires	Initialization34 Tire Position Identification34	Tire Pressure Warning System	Refer to Procedures Necessary When Replacing Parts (for Tire Pressure Warning System) table below Refer to WORK PROCEDURE [09/2023 - 12/2023]
	Rear television camera assembly optical axis (Back camera position setting)	Parking Assist Monitor System	Refer to CALIBRATION [09/2023 - ]
	Parking assist ECU initialization	Panoramic View Monitor System	Refer to CALIBRATION [09/2023 - ]
	Parking assist ECU initialization	Advanced Park	Refer to CALIBRATION [09/2023 - ]
Rear wheel alignment adjustment	Perform "Calibration"	DTCs are stored ABS warning light illuminates Brake system warning light (yellow indicator) illuminates Slip indicator light illuminates Electronically controlled brake system disabled or malfunctions	Refer to RESET MEMORY / CALIBRATION [09/2023 - ]

*1: When "[Parking Support Brake System icon] System Stopped See Owner's Manual" is displayed on the multi-information display.

*2: The vehicle height changes because of tire replacement.

*3: Also necessary after performing a tire rotation.

*4: It is not necessary to perform this procedure if the tire pressure warning valve and transmitters are installed to the same location.

NOTE:

To prevent the key from being locked in the vehicle, make sure to enter e-latch inspection mode and enable the manual release handle before disconnecting the cable from the negative (-) auxiliary battery terminal.

Refer to INSPECTION MODE PROCEDURE [09/2023 - ]

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
Lighting System (w/ Automatic Headlight Beam Level Control System)	Drive the vehicle straight ahead at 15 km/h (10 mph) or more for 1 second or more.	Refer to INITIALIZATION [09/2023 - ]
Front Camera System
Adaptive High Beam System

LEARNING COMPLETES WHEN VEHICLE IS OPERATED NORMALLY

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Power Back Door System	Reset back door close position	Refer to INITIALIZATION [09/2023 - ]
Air Conditioning System	After the ignition switch is turned to ON, the servo motor standard position is recognized.	-

COMPONENTS (REMOVAL)

Fig 1: Oil Cooler Removal Components [09/2023 - 12/2023] (1 Of 2)

Procedure		Part Name Code
1	FRONT WHEEL OPENING EXTENSION PAD LH	53852B	-	-	-
2	FRONT WHEEL OPENING EXTENSION PAD RH	53851D	-	-	-
3	NO. 1 ENGINE UNDER COVER	51441	-	-	-
4	DRAIN COOLANT (for Intercooler)	-	-	See step 4	-

Fig 2: Oil Cooler Removal Components [09/2023 - 12/2023] (2 Of 2)

Procedure		Part Name Code
5	REAR DRIVE SHAFT ASSEMBLY RH	42330	-	-	-
6	NO. 1 TRANSMISSION OIL COOLER HOSE ASSEMBLY	32930F	-	-	-
7	NO. 1 INVERTER COOLING HOSE ASSEMBLY	G90A0A	-	-	-
8	REAR TRANSAXLE MOTOR COOLING COOLER	G125AB	See step 8	-	-

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Non-reusable part