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Service bulletins for the 2023 Lexus RZ

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.

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

By type

By component

Bulletins, newest first
L-SB-0021-23 Rev22025-02-12. Service bulletin. ELECTRICAL SYSTEM. Some 2022 – 2025 model year Lexus vehicles may require the download and installation of vehicle specific software or configuration software when the Electronic Control Unit (ECU) is replaced. GTS+ software has been modified to indicate when configuration software is required. A new Configure column has been added to the GTS+ Health Check Results screen to show when configuration software is available for a specific ECU.
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-TT-0327-23 Rev22024-11-08. Service bulletin. ENGINE. EV Battery ECU Shows Software Update Available "YES", After Health Check
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.
23LJ012024-07-23. Service campaign. UNKNOWN OR OTHER. Second Key Delivery Program Frequently Asked Questions
23LJ012024-07-23. Service campaign. 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.
L-SB-0027-242024-07-23. Service bulletin. ELECTRICAL SYSTEM. A head unit software update is now available for 2022 model year LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles equipped with Lexus Multimedia (version 1020 or earlier). This update provides improved performance and capability for the following: •User Profile configuration and display. •Cloud Navigation and Intelligent Voice Assistant. •Mobile device connectivity. •On-screen display and system settings/configuration. •Security enhancements. A head unit software update is now available for 2022 LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles equipped with Lexus Multimedia (earlier than version 1040). This software update includes the following improvements: •Cloud navigation. •Intelligent assistant voice recognition. •Showing and controlling explicit audio content. •User interface. •Bluetooth®. •Bug fixes. This software update removes the following feature: •Hybrid radio. A head unit software update is now available for 2023 model year LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles equipped with Lexus Multimedia (version 1040 or earlier). This software update provides improved performance and capability for the following: •User Profile. •Over-the-air (OTA) notifications. •Ability to search during a call. •Bug fixes settings/configuration. •Security enhancements. A head unit software update is now available for 2022 – 2023 model year LX 600 vehicles; 2023 – 2024 model year RX 350, RX 350h, RX 450h+, and RX 500h vehicles; 2022 – 2024 model year NX 250, NX 350, NX 350h, and NX 450h+ vehicles; 2023 model RZ 450e vehicles equipped with Lexus Multimedia (earlier than version 2050). This software update includes the following improvements: •User interface design. •Intelligent assistant. •Navigation lane guidance. •Phone book search. •Bug fixes. A head unit software update is now available for 2022 – 2024 model year LX 600, NX 250, NX 350, NX 350h, and NX 450h+ vehicles; 2023 – 2024 model year RX 350, RX 350h, RX 450h+, RX 500h, and RZ 450e vehicles; 2024 model year TX 350, TX 500h, and TX 550h+ vehicles equipped with Lexus Multimedia (earlier than version 2170). This software update includes the following improvements: •User Profile. •User interface. •Cloud navigation. •Intelligent assistant voice recognition. •Bug fixes.
L-SB-0030-242024-07-23. Service bulletin. STRUCTURE:BODY. Some 2005 – 2024 Lexus vehicles that have undergone water intrusion may exhibit a condition in which a musty smell 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 all model and model year specific 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-TT-0330-242024-07-23. Service bulletin. ENGINE. Some customers may notice momentary power dips on graphs produced by the Charge Point Charger’s phone App during A/C charging.
24LC022024-07-23. Service bulletin. ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 24LC02 DATA COMMUNICATON MODULE (DCM) UPDATE CERTAIN 2023 ES250, ES300H, ES350, LS500, RX350, RX350H, RX500H, RZ450E, UX250H
24LC022024-07-23. Service bulletin. ELECTRICAL SYSTEM. The Data Communication Module (DCM), which supports Lexus Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.
24LC022024-07-23. Service bulletin. ELECTRICAL SYSTEM. The Data Communication Module (DCM), which supports Lexus Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.
23LJ012024-07-23. Service bulletin. UNKNOWN OR OTHER. Second Key Delivery Program Frequently Asked Questions
23LJ012024-07-23. Service bulletin. 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.
23LJ012024-07-23. Service bulletin. 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.

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