Caution / Notice / Hint

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. 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 engine unit removal/installation are shown below.

NECESSARY PROCEDURE 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	Perform steering sensor zero point calibration	Lane Tracing Assist System	Refer to INITIALIZATION [08/2021 - ]
		Pre-collision System
		Parking support brake system*
		Lighting system (for HV Model)
	Initialize power trunk lid system	Power trunk lid system (for HV Model)	Refer to INITIALIZATION [06/2018 - ]
Replacement of ECM	Perform Vehicle Identification Number (VIN) registration	MIL illuminates (for HV Model)	Refer to REGISTRATION [06/2018 - ]
Replacement of engine assembly Gas leak from exhaust system is repaired Replacement of throttle body with motor assembly Cleaning the deposits from the throttle body assembly Replacement of cam timing control motor with EDU assembly Removal and installation of a cam timing control motor with EDU assembly Replacement of camshaft timing gear assembly Removal and installation of a camshaft timing gear assembly Replacement of cylinder head sub-assembly Replacement of camshaft (for intake or exhaust camshaft) Replacement of camshaft timing exhaust gear assembly Replacement of port fuel injector assembly Replacement of direct fuel injector assembly Replacement of fuel pump assembly (for high pressure side) Replacement of engine coolant temperature sensor Replacement of spark plug Replacement of ignition coil assembly Replacement of EGR valve assembly Replacement of knock control sensor	Inspection After Repair	Poor idle, etc. Engine start function, etc.	Refer to INITIALIZATION [08/2021 - ]
Replacement of inverter with converter assembly	Resolver learning	DTCs are stored Slight vibration at a vehicle speed of 5 km/h (3 mph) or less Shock or vibration during acceleration	Refer to UTILITY [06/2018 - ] for Nickel Metal Hydride Battery Refer to UTILITY [08/2020 - ] for Lithium-ion Battery
Replacement of hybrid vehicle transaxle assembly	Resolver learning Initialize resolver
Front wheel alignment adjustment	Clear zero point calibration data. Perform yaw rate and acceleration sensor zero point calibration.	DTCs are stored ABS warning light illuminates Brake warning light / yellow (minor malfunction) illuminates Slip indicator light illuminates VSC disabled or malfunctions	Refer to CALIBRATION [06/2018 - ]
Suspension, tires, etc.*1	Rear television camera assembly optical axis (Back camera position setting)	Parking assist monitor system	Refer to CALIBRATION [09/2022 - ]
Replacement of front bumper assembly	Front television camera view adjustment	Panoramic view monitor system	Refer to CALIBRATION [09/2022 - ]
Suspension, tires, etc.*1	Parking assist ECU initialization	Panoramic view monitor system	Refer to CALIBRATION [09/2022 - ]
Replacement of headlight ECU sub-assembly LH Replacement of headlight assembly LH*3	Synchronize the vehicle information Perform headlight ECU sub-assembly LH initialization*2	Lighting system (for HV Model)	Refer to INITIALIZATION [08/2021 - ]
Suspension, tires, etc.*1	Perform headlight ECU sub-assembly LH initialization*2	Lighting system (for HV Model)	Refer to INITIALIZATION [08/2021 - ]

*: When performing learning using the Techstream.
Refer to CALIBRATION [09/2022 - ]
*1: If the vehicle height has changed due to suspension or tire replacement.
*2: for LED type turn signal light
*3: for Bulb Type Turn Signal Light

NOTE:

After the ignition switch is turned off, the audio and visual system 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.
This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
Refer to PRECAUTION [06/2018 - ]