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 control system (for HV Model)	Refer to INITIALIZATION [06/2018 - 08/2021]
		Pre-collision system (for HV Model)
		Parking support brake system (for HV Model)*
		Lighting system (for HV Model)
	Memorize steering angle neutral point	Parking assist monitor system (for HV Model)	Refer to INITIALIZATION [06/2018 - 09/2022]
	Memorize steering angle neutral point	Panoramic view monitor system (for HV Model)	Refer to INITIALIZATION [06/2018 - 09/2022]
	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 [06/2018 - 07/2019] , or refer to INITIALIZATION [07/2019 - 08/2020]
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 - ]
Replacement of hybrid vehicle transaxle assembly	Resolver learning Initialize resolver		Refer to UTILITY [06/2018 - ]
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 adjustment (Back camera position setting)	Parking assist monitor system (for HV Model)	Refer to INITIALIZATION [06/2018 - 09/2022] for Initialization Refer to CALIBRATION [06/2018 - 09/2022] for Calibration
Replacement of front bumper assembly	Front television camera view adjustment	Panoramic view monitor system (for HV Model)	Refer to INITIALIZATION [06/2018 - 09/2022] for Initialization Refer to CALIBRATION [06/2018 - 09/2022] for Calibration
Suspension, tires, etc.*1	Parking assist ECU initialization Adjust steering angle Rear television camera assembly optical axis (Back camera position setting)	Panoramic view monitor system (for HV Model)
Replacement of headlight ECU sub-assembly LH	Synchronize the vehicle information Perform headlight ECU sub-assembly LH initialization*2	Lighting system (for HV Model)	Refer to INITIALIZATION [06/2018 - 08/2020]
Suspension, tires, etc.*1	Perform headlight ECU sub-assembly LH initialization*2	Lighting system (for HV Model)	Refer to INITIALIZATION [06/2018 - 08/2020]

*: When performing learning using the Techstream.
Refer to CALIBRATION [06/2018 - 08/2021]
*1: If the vehicle height has changed due to suspension or tire replacement.
*2: for LED type turn signal light

NOTE:

After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System)
After the power switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Navigation System)
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 - ]