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Service bulletins for the 2024 Lexus NX

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.

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

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
L-TT-0323-23 Rev12024-07-06. Service bulletin. ELECTRICAL SYSTEM. When setting up the Lexus Interface (21MM) user profile, if the QR code is not working please use the following recommendations. 1. Refer to the TAS 21MM Diagnostics Pre-Call Worksheet (PCW) on the TAS case creation page. The following steps will provide some answers for the PCW. 2. Start with the vehicle running outside for 5-10 minutes in an area with no overhead obstructions. a. Enter the radio Service Menu (diagnostic mode) using Techstream or GTS+, or the manual swiping method as outlined in the Repair Manual. b. Once the Service Menu is shown, the Function Check/Setting, and Product information buttons will be used. 3. Select the Product Information button to display radio and DCM registration details. 4. Accurate GNSS Date and Time is needed for the QR code to work. From the Service Menu select Function Check/Setting > System Sensors Check to display GNSS details.
L-SB-0021-23 Rev12024-07-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE. Some 2022 – 2024 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. REVISION NOTICE April 18, 2024 Rev1: •Applicability has been updated to include 2024 model year GX 550, LX 600, NX 250, NX 350, NX 350h, NX 450h+, RX 350, RX 350h, RX 450h+, RX 500h, RZ 300e, RZ 450e, TX 350, TX 500h, and TX 550h+ vehicles. •The Introduction section has been updated. •The Operation Procedure section has been removed. •The Standard ECU Configuration Procedure and ECU Configuration Value Writing Procedure sections have been added.
L-SB-0035-22 Rev12024-07-06. 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. REVISION NOTICE April 11, 2024 Rev1: •Applicability has been updated to include 2023 – 2024 model year LS 500, LS 500h, LX 600, NX 250, NX 350, NX 350h, NX 450h+, RX 350, RX 350h, RX 450h+, RX 500h, and RZ 450e and 2024 model year RZ 300e, TX 350, TX 500h, and TX 550h+ vehicles. •The entire bulletin has been updated to represent GTS+ Software.
L-TT-0323-23 Rev12024-07-06. Service bulletin. ELECTRICAL SYSTEM. When setting up the Lexus Interface (21MM) user profile, if the QR code is not working please use the following recommendations. 1. Refer to the TAS 21MM Diagnostics Pre-Call Worksheet (PCW) on the TAS case creation page. The following steps will provide some answers for the PCW. 2. Start with the vehicle running outside for 5-10 minutes in an area with no overhead obstructions. a. Enter the radio Service Menu (diagnostic mode) using Techstream or GTS+, or the manual swiping method as outlined in the Repair Manual. b. Once the Service Menu is shown, the Function Check/Setting, and Product information buttons will be used. 3. Select the Product Information button to display radio and DCM registration details. 4. Accurate GNSS Date and Time is needed for the QR code to work. From the Service Menu select Function Check/Setting > System Sensors Check to display GNSS details.
L-SB-0021-23 Rev12024-07-06. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Some 2022 – 2024 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. REVISION NOTICE April 18, 2024 Rev1: •Applicability has been updated to include 2024 model year GX 550, LX 600, NX 250, NX 350, NX 350h, NX 450h+, RX 350, RX 350h, RX 450h+, RX 500h, RZ 300e, RZ 450e, TX 350, TX 500h, and TX 550h+ vehicles. •The Introduction section has been updated. •The Operation Procedure section has been removed. •The Standard ECU Configuration Procedure and ECU Configuration Value Writing Procedure sections have been added.
L-SB-0035-22 Rev12024-07-06. 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. REVISION NOTICE April 11, 2024 Rev1: •Applicability has been updated to include 2023 – 2024 model year LS 500, LS 500h, LX 600, NX 250, NX 350, NX 350h, NX 450h+, RX 350, RX 350h, RX 450h+, RX 500h, and RZ 450e and 2024 model year RZ 300e, TX 350, TX 500h, and TX 550h+ vehicles. •The entire bulletin has been updated to represent GTS+ Software.
Lexus Second Key2024-04-15. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. 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.
23LJ01_P5_Dealer2024-04-15. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. DP: 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.
Vehicle Eligibil2024-03-04. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. The table describes the phases currently planned for the Second Key Delivery Program and the estimated timing of announcement. This table will be updated during each phase launch and as more details become available.
Dealer Packet pu2024-03-04. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. DP: 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-0006-232024-03-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. TSB: 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; and 2023 ES 250, ES 300h, ES 350, and UX 250h 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 ES 250, ES 300h, ES 350, RX 350, RX 350h, RX 450h+, RX 500h, and UX 250h vehicles; 2022 ? 2024 model year NX 250, NX 350, NX 350h, and NX 450h+ vehicles; 2023 model year LS 500 and LS 500h vehicles; 2024 model year LC 500, LC 500C, and LC 500h 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 se
L-SB-0015-232024-03-04. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. TSB: Hybrid and battery electric vehicles are equipped with two types of batteries: ?Hybrid Vehicle (HV) battery ?Auxiliary (12V) battery If the hybrid vehicle or battery electric vehicle is placed into storage, the State-Of-Charge (SOC) of its HV battery and auxiliary battery will gradually decrease. To prevent the auxiliary battery from becoming discharged during storage, proper maintenance is necessary. Perform the following maintenance service for the HV battery and auxiliary battery.
23LJ01P5_TI_Publ2024-01-16. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. TI: TECHNICAL INSTRUCTIONS FOR 23LJ01 Second Key Delivery Program Multiple Models and Model Years
23LJ01P5_RL_Publ2024-01-16. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. RL: 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.
23LJ01_P5_Dealer2024-01-16. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. DP: 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-0016-23 Rev2024-01-16. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. TSB: A battery in a stored vehicle is subject to conditions that can reduce its performance and service life. These conditions include storage period, temperature, parasitic drain, and battery load. Because of these factors, battery inspection and maintenance are required in order to ensure proper operation and optimal battery life. As a matter of policy, Lexus does not provide battery warranty coverage for discharged and/or failed batteries due to lack of maintenance. It is the dealer?s responsibility to maintain the specified State-Of-Charge (SOC) of the vehicle?s battery while in stock and ensure proper SOC at delivery. To eliminate customer service concerns due to an undercharged battery during the first few weeks of ownership, ALL dealers should test the auxiliary (12V) battery and recharge, if necessary, no more than 48 hours before delivery to the customer.
LSB0055232023-12-26. Service bulletin. ELECTRICAL SYSTEM. TSB: Some 2018 ? 2024 model year Lexus vehicles may exhibit a hybrid system warning lamp occurring in below-freezing temperatures (below 32°F or 0°C). After performing a Health Check, one or both of the following Diagnostic Trouble Codes (DTCs) may be present: ?P1C8449 ? (High Voltage Power Resource Circuit Short during Ready ON) ?P300449 ? (High Voltage Power Resource Circuit Short during Pre-Charge) Follow the Repair Procedure in this bulletin to address this condition.
23LD04_Dealer Pa2023-11-27. Service bulletin. ELECTRICAL SYSTEM. DP: The subject vehicles are equipped with a GPS antenna wire harness that will not allow the GPS to operate when the vehicle is off as intended. As a result, the vehicle location cannot be identified through stolen vehicle location services when the vehicle is off.

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