◄ IMPORTANT UPDATE ►
The attached Technical Instructions have been updated. Refer to the details below.
DATE
June 3, 2025

TOPIC
A watermark has been added to indicate that 22LD03 expired on 5/31/2025.

The most recent update in the attached Technical Instructions will be highlighted with a red box.
Please review this notification with your staff to assure that all relevant personnel have been briefed regarding
this subject.
Thank you for your cooperation.

© 2025 Lexus, A Division of Toyota Motor Sales, USA

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TECHNICAL INSTRUCTIONS

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FOR

LIMITED SERVICE CAMPAIGN 22LD03

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REPROGRAMMING FOR FORWARD RECOGNITION CAMERA

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CERTAIN
2022 MODEL YEAR LEXUS LS500

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The repair quality of covered vehicles is extremely important to Toyota. All dealership technicians
performing this recall are required to successfully complete the most current version of the ELearning course “Safety Recall and Service Campaign Essentials”. To ensure that all vehicles have the
repair performed correctly; technicians performing this repair are required to currently have
completed all the following courses:
• L623 – Electrical Circuit Diagnosis

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It is the dealership’s responsibility to select technicians with the above certification level or greater to
perform this recall repair. Carefully review your resources, the technician skill level, and ability
before assigning technicians to this repair. It is important to consider technician days off and
vacation schedules to ensure there are properly trained technicians available to perform this repair at
all times.

I.

OPERATION FLOW CHART

Verify Vehicle Eligibility
1. Check the VIN range.
2. Check the TIS Vehicle Inquiry
System.

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The flow chart is for reference only. DO NOT use it in place of the full technical instructions. Follow ALL
steps as outlined in the full technical instructions to confirm the campaign is completed correctly.

No further action required.

Not Covered

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Covered

Perform Health Check and Verify
ECU Calibration

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Old Calibration

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New Calibration

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Campaign completed, return the
vehicle to the customer.

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Reflash the Front Recognition
Camera System with the NEW
software.

II. IDENTIFICATION OF AFFECTED VEHICLES
CHECK VEHICLE FOR CAMPAIGN ELIGIBILITY
a) Compare the vehicles VIN to the VIN listed on the Repair Order to ensure they match.
b) Check the TIS Vehicle Inquiry System to confirm the VIN is involved in this Campaign, and that it has not
already been completed.
NOTICE:
TMNA warranty will not reimburse dealers for repairs completed on vehicles that are not affected or
were previously completed, even by another dealer.

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III. PREPARATION

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A. TOOLS, SUPPLIES & EQUIPMENT
• Standard Hand Tools
• DCA-8000 Battery Diagnostic Station
• L-SB-0001-18
• T-SB-0107-20
• Techstream ADVi / Techstream 2.0 / Techstream Lite

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IV. BACKGROUND

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The subject vehicles are equipped with a Road Sign Assist (RSA) driver assistance feature. This feature uses the forward
recognition camera to detect objects and provide information to the driver about specific road signs. Due to an incorrect
software program, the RSA feature is unable to display road sign information.

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V. SAFETY PRECAUTIONS

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CRITICAL INFORMATION - READ THOROUGHLY

An ECU could be damaged if an error occurs in the communication while reprogramming the ECU. Confirm all work
is performed as described in these instructions.
STABILIZE THE POWER TO THE PERSONAL COMPUTER SIDE
Be sure to connect the personal computer to an external AC
power supply.

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a)

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NOTICE:
The ECU could be damaged if the battery voltage of the personal
computer drops while reprogramming.
b)

Turn off the screen saver and power saving mode of the personal
computer so that the power to the hard disk is kept supplied.

NOTICE:
If the screen saver or power saving mode launches while
reprogramming, the communication may be disconnected,
resulting in the damage of the ECU.
c)

DO NOT block the ventilation opening for the cooling fan of the
personal computer.

NOTICE:
If the ventilation opening for the cooling fan is blocked with a
sheet cover or the like, the personal computer may be heated
excessively, causing the operation of the personal computer to
stop.
Due to the stop of the operation, the communication for
reprogramming signals could be stopped, resulting in the damage
of the ECU.
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VI. FRONT RECOGNITION CAMERA SYSTEM CALIBRATION ID VERIFICATION
1.

CHECK FOR DTC’S
a) Using a Techstream, perform a Health Check to check for any
Diagnostic Trouble Codes.

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Even if “Please connect the Ethernet
communication supported cable.” is
displayed, a VIM which does not support
Ethernet communication can be used. Click
"Next" and proceed with the work.

CHECK CURRENT CALIBRATION
a) Locate the Update column for the Front Recognition Camera system in the Stored Data tab for this
vehicle.
b) Determine the status of an available update; indicated by a YES or NO.
HINT:
If the CID’s indicate ‘Yes’, proceed with the update procedure.

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NOTICE:
This Campaign covers only the software update to the Front
Recognition Camera System, as detailed in these instructions. It
does not cover the diagnosis or replacement of any other systems
on the vehicle.

Yes

Proceed to section VII. Vehicle
preparation on p.4

Is there an update available for
the Front Recognition Camera
System?

No

Campaign complete. Return the
vehicle to the customer.

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◄ CRITICAL MESSAGE ►
It is critical that L-SB-0001-18 and T-SB-0107-20 in addition to the Technical Instructions for this LSC are followed.
This TSB outlines all steps necessary to prevent reprogramming failure. Toyota will not provide reimbursement coverage
for reprogramming failures if this TSB is not followed. If you have a reprogramming failure that requires Forward
Recognition Camera replacement, and the Technical Instructions and TSB were followed correctly, please create a case
with the Technical Assistance Hotline documenting all information related to the failure. If sufficient reporting is received
related to re-flash failure, there will be consideration for reimbursement.

VII. VEHICLE PREPERATION
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VEHICLE PREPARATION
a) Confirm the following conditions:
Vehicle in the IG position (engine off).
Transmission in Park.
Parking brake engaged.

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Turn off all electrical accessories (i.e. climate control, audio
system, etc.)
Headlight switch in the DRL OFF position.
Windshield wiper switch in the OFF position.

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