Lexus, A Division of Toyota Motor Sales, USA, Inc.
6565 Headquarters Drive
Plano, TX 75024
(469) 292-4000
Original Publication Date: January 30, 2025
To:

All Lexus Dealer Principals, General Managers, Service Managers, Parts Managers and Warranty Administrators

CUSTOMER SUPPORT PROGRAM 24LE03
Certain 2018 – 2021 Model Year NX300h
Certain 2016-2018 Model Year GS450h
Certain 2013-2016 Model Year LS600h
Coverage for Brake Booster and Brake Booster Pump Assemblies
Model / Years
Certain 2018-2021 Model Year NX300h
Certain 2016-2018 Model Year GS450h
Certain 2013-2016 Model Year LS600h

Production Period
Early June 2017- Mid September 2021
Late September 2015- Late August 2018
Mid June 2012- Early August 2016

Approximate Total Vehicles
39,500
200
300

In our continuing efforts to ensure the best in guest satisfaction, Lexus is announcing a Customer Support Program to provide coverage for
Brake Booster and Brake Booster Pump Assemblies on certain 2018-2021 NX300h, 2016-2018 GS450h, 2013-2016 LS600h Model
Year Vehicles.
Background
Although the Brake Booster and Brake Booster Pump Assembly are covered by Lexus’s New Vehicle Limited Warranty for 4 years or
50,000 miles (whichever comes first), we at Lexus care about the guests’ ownership experience. Lexus is providing coverage for repairs in
the subject vehicles related to certain internal malfunctions of the Brake Booster Pump Assembly and/or Brake Booster, depending on the
model.
The following information is provided to inform you and your staff of the program notification schedule and your degree of involvement.
Customer Support Program Details
This Customer Support Program provides coverage as it applies to Brake Booster Pump Assembly and/or Brake Booster on certain 2018
– 2021 Model Year NX300h, certain 2016-2018 Model Year GS450h, and certain 2013-2016 Model Year LS600h vehicles. The
specific condition covered by this program is related to certain internal malfunctions of the Brake Booster Assembly. One or more of the
following specific Diagnostic Trouble Codes (DTCs) C1391, C1252, C1253 or C1256 will be stored in the vehicles memory to be used as
verification. If the condition is verified, the vehicle will be repaired with a new Brake Booster Pump Assembly and/or Brake Booster under
the terms of this Customer Support Program.
•
•

The Primary Coverage will be offered until January 30, 2026, regardless of mileage.
After the Primary Coverage, the Secondary Coverage is applicable for 10 years or 150,000 miles from the date of first use, whichever
comes first.

This coverage is for work performed at an authorized Lexus dealer only. It is subject to the same terms and conditions set forth in the New
Vehicle Limited Warranty Section of the Warranty and Service Guide booklet. For example, damage from abuse, an accident, theft and/or
vandalism is not covered.
Covered Vehicles
There are approximately 43,800 vehicles covered by this Customer Support Program. Approximately 40 vehicles involved in this Customer
Support Program were distributed to Puerto Rico.
Owner Letter Mailing Date
Lexus will begin to notify owners in February 2025 and will be mailed over several months. A sample of the owner notification letter has been
included for your reference.

© 2024 Lexus, A Division of Toyota Motor Sales, USA

Customer Support Program 24LE03 - Page |2

Guest Handling, Parts Ordering, and Remedy Procedures
Guest Contacts
Guests who receive the owner letter may contact your dealership with questions regarding the letter and/or the Customer Support Program.
Please welcome them to your dealership and answer any questions that they may have. A Q&A is provided to assure a consistent message is
communicated.
Guests with additional questions or concerns are asked to please contact the Lexus Brand Engagement Center (1-800-255-3987) Monday through Friday, 8:00 am to 8:00 pm, Saturday 9:00 am to 7:00 pm Eastern Time.
Salvage Title Vehicles
There is no New Vehicle Limited Warranty coverage or non-emission CSP coverage for vehicles that have been branded as salvage, total
loss, true mileage unknown, or similar title under any state’s law. Nonetheless, every attempt should be made to complete an open emission
related CSP when circumstances permit, unless noted otherwise in the CSP dealer letter.
•

This CSP IS emission related; therefore, vehicles branded as salvage, total loss, true mileage unknown, or similar title ARE ELIGIBLE for
coverage under this CSP.

For complete details on this policy, refer to Lexus Warranty Policy 4.15, “What Is Not Covered by The Lexus New Vehicle Limited Warranty”.
Guest Marketing
Direct marketing of this Customer Support Program is strictly prohibited pursuant to the Lexus Warranty Policy 5.22, “Warranty
Solicitation.” Non-compliance of this policy may result in a claim debit.
Media Contacts
It is imperative that all media contacts (local and national) receive a consistent message. In this regard, all media contacts must be directed to
pressroom.lexus.com.
Parts Ordering Process
It is possible that parts for this campaign are either required to be ordered on Service Lane and have been placed on Manual Allocation
Control (MAC) due to potential limited part availability. Please check the CPOR/MAC report on Dealer Daily for the most up-to-date parts
ordering information. Dealers can identify which parts ordering method to use by reviewing the parts information section of Dealer Daily and
checking for a MAC code on the part numbers below. For MAC code C, order through CPOR. For MAC code D, refer to the MAC report
for further instructions.
As this is a Customer Support Program, the condition MUST be verified by inspecting the vehicle. Therefore, dealers SHOULD NOT
increase their stock of related repair parts. Dealers are requested to only order parts for vehicles experiencing this condition only. DO NOT
ORDER FOR STOCK. As always, if a guest experiences the condition described, dealers should conduct appropriate diagnosis and order
the applicable parts.

Model

Model Year
NX300h

Model

2018-2021
Model Year

GS450h
Model

2016-2018
Model Year

Part Name
Cylinder Kit, Brake Master
Part Name
Actuator assy, Brake W/Fluid
Part Name

Part Number
Refer to TSB
Part Number
Refer to TSB
Part Number

Cylinder Kit, Brake Master
LS300h

2013-2016

Refer to TSB
Pump Kit, Brake Booster
W/Accumulator

© 2024 Lexus, A Division of Toyota Motor Sales, USA

Customer Support Program 24LE03 - Page |3

Technician Training Requirements
The repair quality of covered vehicles is extremely important to Lexus. All dealership technicians performing this repair are required to
successfully complete the most current version of the E-Learning course “Safety Recall and Service Campaign Essentials”. To ensure that all
vehicles have the repair performed correctly; technicians performing this recall repair are required to currently have completed all of the
following courses:
• LIC209A – Electrified Vehicle Powertrain Repair
It is the dealership’s responsibility to select technicians that have completed the above courses 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.

NOTE: Claims for repairs that were performed by non-qualified technicians are subject to debit.
Remedy Procedures
Technical instructions for this Customer Support Program can be found in: L-SB-0008-25
Parts Recovery Procedures
All parts replaced as part of this Customer Support Program must be turned over to the parts department until appropriate disposition is
determined. The parts department must retain these parts until notification via the Parts Recovery System (PRS) is received indicating whether
to ship or scrap the parts. These parts are utilized by various departments for defect analysis, quality control analysis, product evaluation, as
well as other purposes.
To help minimize dealer storage challenges, Lexus recommends that dealers:
• File the campaign claim accurately and promptly. The time a dealer is required to hold parts is based on when the campaign claim is paid
by Lexus.
• Monitor the Warranty Parts Recovery Notifications and Part Scrap Report regularly.
Refer to Warranty Policies 9.3 and 9.6 for additional details.

Warranty Reimbursement Procedures
Reimbursement Procedure
NOTE: If the vehicle is still under the New Vehicle Limited Warranty, submit the repair as a Regular warranty claim.
Op Code

Description
Replace the Cylinder Kit, Brake Master
(NX300h)

Flat Rate Hours

24LE03R2

Replace the Actuator Assembly (GS450h)

1.3

24LE03R3

Replace the Cylinder Kit, Brake Master +
Pump Kit, Brake Booster W/Accumulator
(LS600h)

2.1

24LE03R1

2.3

Claim Filing Accuracy and Correction Requests
It is the dealer’s responsibility to file claims correctly for this Customer Support Program. This claim filing information is used by Lexus for
various government reporting activities; therefore, claim filing accuracy is crucial. If it has been identified that a claim has been filed using an
incorrect Op Code or a claim has been filed for an incorrect VIN, refer to Warranty Procedure Bulletin PRO17-03 to correct the claim.
Guest Reimbursement
Reimbursement consideration instructions will be included in the owner letter.

© 2024 Lexus, A Division of Toyota Motor Sales, USA

Customer Support Program 24LE03 - Page |4

Campaign Designation / Phase Decoder

Examples:
19TA01 = Launched in 2019, Toyota, Safety Recall Remedy Phase, 1st Safety Recall Launched in 2019
20TC02 = Launched in 2020, Special Service Campaign, 2nd Special Service Campaign Launched in 2020
21TE05 = Launched in 2021, Customer Support Program, 5th Customer Support Program Launched in 2021

Please review this entire package with your Service and Parts staff to familiarize them with the proper step-by-step procedures required to
implement this Customer Support Program.
Thank you for your cooperation.
LEXUS, A DIVISION OF TOYOTA MOTOR SALES, U.S.A., INC.

© 2024 Lexus, A Division of Toyota Motor Sales, USA

CUSTOMER SUPPORT PROGRAM 24LE03
Certain 2018 – 2021 Model Year NX300h
Certain 2016-2018 Model Year GS450h
Certain 2013-2016 Model Year LS600h
Coverage for Brake Booster and Brake Booster Pump Assemblies
Frequently Asked Questions
Original Publication Date: January 30, 2025
Q1:
A1:

What is the condition?

Lexus has received reports regarding the Brake Booster Pump Assembly and/or Brake Booster on certain 2018 – 2021 Model
Year NX300h, certain 2016-2018 Model Year GS450h, and certain 2013-2016 Model Year LS600h vehicles. In these reports,
guests have noted various brake system related warning lamps are illuminated.

Q1a:
A1a:

Which brake system warning indicator(s) may be related to these conditions?

If the following warning lamps are illuminated, the vehicle may be experiencing a concern with the Brake Booster or Brake
Booster Pump Assemblies that are covered by this Customer Support Program.

Master Warning
Light (Yellow)

Brake System
Warning Light
and Warning
Buzzer (Red)

Brake System
Warning Light
(Red)

ABS Warning Light
(Yellow)

SLIP Indicator
(Yellow)

NOTE: It is possible for the lights above to be illuminated and the condition not be related to this Customer Support
Program.
Q2:
A2:

What is Lexus going to do?

Although the Brake Booster and Brake Booster Pump Assemblies are covered by Lexus’s New Vehicle Limited Warranty for
normal warranty coverage period, 4 years or 50,000 miles (whichever comes first), we at Lexus care about the guests’ ownership
experience. Lexus is providing coverage for repairs related to the certain internal malfunctions of the Brake Booster Assembly. Your
dealer can determine if your vehicle is experiencing the condition covered by this Customer Support Program by confirming the
presence of one or more of the following specific Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256 or C1253 that will be
stored in the vehicle’s memory.
Lexus will send an owner notification by first class mail starting in February 2025, advising owners of this Customer Support
Program.

FAQ Page 1 of 3
© 2024 Lexus, A Division of Toyota Motor Sales, USA

Q3:
A3:

Which and how many vehicles are covered by this Customer Support Program?

There are approximately 43,800 vehicles covered by this Customer Support Program. Approximately 40 vehicles involved in this
Customer Support Program were distributed to Puerto Rico.

Q3a:
A3a:

•
•
•
•
•
•
•
•
•
•
•
Q4:
A4:

Model Name

Model Year

Production Period

NX300h
GS450h
LS600h

2018-2021
2016-2018