NHTSA ID Number: 10177786
Manufacturer Communication Number: SPECIAL SERVICE
TSB/Document Date: 2020-08-03
Summary
DL: The engine control module in the subject vehicles is equipped with software to manage the emissions systems. Due to improper programming in the software, the emissions monitoring system may clear the system test results which can result in a vehicle not being able to complete emission testing/smog checks.
From: Kathy Wachs (TMS) Kathy.Wachs@lexus
.com
Subject: SPECIAL SERVICE CAMPAIGN 20LC03 - Certain 2018 - 2019 RX 350 and Certain 2018 - 2019 RX 350L Engine Control
Module Reprogram (Dealer)
Date: June 25, 2020 at 3:14 PM
To:
Condition
The engine control module in the subject vehicles is equipped with software to manage the emissions
systems. Due to improper programming in the software, the emissions monitoring system may clear the
system test results which can result in a vehicle not being able to complete emission testing/smog checks.
Remedy
Any authorized Lexus dealer will reprogram the engine control module software FREE OF CHARGE.
NOTE: The remedy for Special Service Campaign 20LC03 also addresses the KLA condition. As a
result, KLA is no longer active for the RX vehicles involved in KLA as of June 25, 2020. All RX vehicles
involved in KLA (whether or not KLA was completed) are now included in Special Service Campaign
20LC03.
Covered Vehicles:
There are approximately 125,300 vehicles covered by this Special Service Campaign.
Approximately 200 vehicles involved in this Special Service Campaign were distributed to Puerto
Rico.
Model / Years
2018 - 2019 RX 350
2018 - 2019 RX 350L
Production Period
Early December 2017 – Mid
September 2019
Early August 2017 – Early August
2019
Technician Certification Requirements
Certified
Senior Certified
Master Certified
Owner Letter Mailing Date
Lexus will begin to notify owners in late June 2020.
Please reference the attachments for additional details.
Thank you for your support.
Kathy Wachs
Parts & Service Program Consultant
Lexus Customer Service
kathy.wachs@lexus.com
Approximate Total
Vehicles
97,900
27,400
kathy.wachs@lexus.com
O: 469-292-4587
6565 Headquarters Drive
Plano, TX 75024
E3-2A
20LC03 Remed…20.pdf
20LC03 TI
FINAL…20.pdf
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TSB/Document ID: SPECIAL SERVICE
Replacement Service Bulletin Number:
MFR Communication Date: 2020-06-25
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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