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Service bulletins for the 2023 Lexus LS

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

69 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
L-SB-0028-262026-10-08. Service bulletin. SERVICE BRAKES. Some 2018 – 2023 model year LC 500, and LC 500h, 2021 – 2023 model year LC 500c, 2018 – 2023 model year LS 500, and LS 500h, 2015 model year RX 450h, and 2018 – 2022 model year RX 450h vehicles may exhibit a condition in which the brake, ABS, and/or TRAC warning lights are on and/or a Check VSC message displays. One or more of the following specific Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256, and/or C1253 will be stored in the vehicle memory to be used as verification. This condition may be caused by a small internal brake fluid leak inside the brake actuator.
L-SB-0030-24 Rev22026-01-09. Service bulletin. STRUCTURE:BODY. Some 2005 – 2026 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year Repair Manuals and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines. This Service Bulletin is to provide a general overview and direction for the odor remediation process.
L-SB-0039-252025-10-08. Service bulletin. ELECTRICAL SYSTEM. A new head unit software update is available for 2023 – 2024 model year ES 250, ES 300h, ES 350, LS 500h, and UX 250h; 2023 model year LS 500; 2024 model year GX 550, LC 500, LC 500c, and LC 500h vehicles equipped with Lexus Multimedia earlier than version 2170 (earlier than 2172 for GX 550). This software update includes the following improvements: •User Profile. •User interface. •Cloud navigation. •Intelligent assistant voice recognition. •Bug fixes.
L-TT-0326-23 Rev22025-09-09. Service bulletin. ELECTRICAL SYSTEM. Some customers may experience operational difficulties with some telematics features which they cannot resolve on their own. These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user errors, and compatibility issues with other vehicle systems and external applications encountered while operating telematics features.
L-SB-0043-23 Rev12025-07-10. Service bulletin. ELECTRICAL SYSTEM. The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
L-TT-0340-252025-06-06. Service bulletin. ELECTRICAL SYSTEM. To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
L-TT-0340-252025-05-15. Service bulletin. ELECTRICAL SYSTEM. To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
L-SB-0036-22 Rev22025-04-08. Service bulletin. ELECTRICAL SYSTEM. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard+ (CUW+). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.
L-SB-0013-24 Rev12025-04-08. Service bulletin. ELECTRICAL SYSTEM. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
L-SB-0017-19 Rev12025-04-08. Service bulletin. STRUCTURE:BODY. Some 2010 – 2026 model year Lexus vehicles may exhibit paint stains after the removal of Rapgard™. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard™. The wrinkles may trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces such as the hood, roof, and trunk.
L-SB-0036-22 Rev22025-03-11. Service bulletin. ELECTRICAL SYSTEM. Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the ECU. Flash calibration updates for specific vehicle models/ECUs are released as field-fix procedures described in individual Service Bulletins. This bulletin details the Global Techstream+ (GTS+) ECU flash reprogramming procedures and outlines use of the Technical Information System (TIS) and the Calibration Update Wizard+ (CUW+). To ensure the correct ECU software is installed, ECUs will require a Security Signature before the ECU will initialize the flash reprogramming sequence. This bulletin also details the process for acquiring a Security Signature from TIS during the GTS+ ECU flash reprogramming process.
L-SB-0013-24 Rev12025-03-11. Service bulletin. ELECTRICAL SYSTEM. The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered keys will be erased and can never be reused. Another feature, Add/Remove Key, is also available. Once a key is removed, it can never be reused.
L-SB-0017-19 Rev12025-03-11. Service bulletin. STRUCTURE:BODY. Some 2010 – 2026 model year Lexus vehicles may exhibit paint stains after the removal of Rapgard™. The paint stains may appear to be under the clear coat but are usually under wrinkles in the Rapgard™. The wrinkles may trap water and cause the paint to stain from the trapped moisture, especially on horizontal surfaces such as the hood, roof, and trunk.
L-SB-0035-22 Rev22025-02-12. Service bulletin. ELECTRICAL SYSTEM. When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to communicate on the vehicle network. The GTS+ Software Health Check Results screen has been enhanced to help identify if a replacement ECU requires an ECU Security Key.
23LJ012024-11-08. Service campaign. UNKNOWN OR OTHER. The table below describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated over time as more details become available.
23LJ012024-11-08. Service campaign. UNKNOWN OR OTHER. SECOND KEY DELIVERY PROGRAM 23LJ01 Multiple Models and Model Years Second Key Delivery Program Frequently Asked Questions
23LJ012024-11-08. Service campaign. UNKNOWN OR OTHER. The supply of Smart Keys available for Lexus vehicles has been temporarily limited to one (1) on select models since October 2022 due to global semiconductor shortages impacting certain microchips. Affected vehicles have been delivered with only one Smart Key and a second mechanical key.
23LJ012024-11-08. Service campaign. UNKNOWN OR OTHER. The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affected vehicles were delivered with one (1) Smart Key and a second mechanical key.
L-SB-0034-23 Rev22024-11-08. Service bulletin. ELECTRICAL SYSTEM. Some 2023 model year ES 250, ES 300h, ES 350, and UX 250h vehicles with DCM firmware version earlier than LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, RX 350, RX 350h, RX 500h, and RZ 450e vehicles, and 2023 –2024 model year ES 300h and UX 250h vehicles with DCM firmware versions earlier than LG-N210jj3333-09, LG-N210nn1212-09, LG-N310kk4646-0I, LG-N310ll4A4A-0I, LG-N310mm8A8A-0I, LG-N310nnBLBM-0I, or LG-N310oo1B1B-0I may exhibit a condition in which remote services are inoperative. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, and RZ 450e vehicles, 2023 – 2024 model year RX 350, RX 350h, RX 450h+, and RX 500h vehicles, 2024 model year GX 550, LC 500c, and UX 250h vehicles; and 2023 – 2025 model year ES 300h vehicles with DCM firmware versions earlier than LG-N210qq####-##, or LG-N310qq####-##, may exhibit a condition in which Apple Music® or Amazon Music streaming and/or remote services are inoperative. A DCM firmware update is now available.
23LJ012024-11-06. Other. UNKNOWN OR OTHER. The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated over time as more details become available.
23LJ012024-11-06. Other. UNKNOWN OR OTHER. The subject vehicles were delivered with only one (1) Smart Key on select models since October 2022 due to a global semiconductor shortage impacting certain microchips. The affected vehicles were delivered with one (1) Smart Key and a second mechanical key.
L-SB-0030-24 Rev12024-09-07. Service bulletin. STRUCTURE:BODY. Some 2005 – 2024 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year Repair Manuals and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines. This Service Bulletin is to provide a general overview and direction for the odor remediation process.
L-SB-0034-23 Rev12024-09-07. Service bulletin. ELECTRICAL SYSTEM. Some 2023 model year ES 250, ES 300h, ES 350, and UX 250h vehicles with DCM firmware version earlier than LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, RX 350, RX 350h, RX 500h, and RZ 450e vehicles, and 2023 –2024 model year ES 300h and UX 250h vehicles with previous versions of DCM firmware (See Table 1 below) may exhibit a condition in which remote services are inoperative. A DCM firmware update is now available to address these conditions.
L-SB-0030-24 Rev12024-08-08. Service bulletin. STRUCTURE:BODY. Some 2005 – 2024 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interior of the vehicle for odor remediation. Refer to the applicable model and model year Repair Manuals and the EPA (Environmental Protection Agency) website for the most up-to-date safety and precautionary guidelines. This Service Bulletin is to provide a general overview and direction for the odor remediation process.
L-SB-0034-23 Rev12024-08-08. Service bulletin. ELECTRICAL SYSTEM. Some 2023 model year ES 250, ES 300h, ES 350, and UX 250h vehicles with DCM firmware version earlier than LG-N210ee9999-09 may exhibit a condition in which the vehicle customize settings menu is unavailable in the head unit after connecting to Techstream. Some 2023 model year ES 250, ES 350, LS 500, LS 500h, RX 350, RX 350h, RX 500h, and RZ 450e vehicles, and 2023 –2024 model year ES 300h and UX 250h vehicles with previous versions of DCM firmware (See Table 1 below) may exhibit a condition in which remote services are inoperative. A DCM firmware update is now available to address these conditions.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.