Service bulletin L-SB-0024-25
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11019358 |
| Published by NHTSA | 2025-06-06 |
| Manufacturer's number | L-SB-0024-25 |
| Manufacturer's date | 2025-04-18 |
| Campaign id or software version | L-SB-0024-25 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
Some 2023 – 2025 model year RX 350, RX 350h, RX 500h, and 2024 – 2025 model year TX 350, TX 500h, and TX 550h+ vehicles may exhibit a condition where the Blind Spot Monitor (BSM) system is inoperative, there is a BSM malfunction message on the multi-information display (MID), or the driving assist information indicator is illuminated, along with one or more of the following Diagnostic Trouble Codes (DTCs) present: •C1AB413 – Outer Mirror Indicator (Module "B" Side) Circuit Open •C1AB513 – Outer Mirror Indicator (Module "A" Side) Circuit Open The BSM sensor software has been updated to reduce the possibility of these conditions.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system
Trouble codes named
C1AB4, C1AB5
| LEXUS RX | 2023, 2024, 2025 |
|---|---|
| LEXUS RX HYBRID | 2023 to 2025 |
| LEXUS TX | 2024, 2025 |
| LEXUS TX HYBRID | 2024 to 2025 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 25V595000 | 2025-09-11. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL |
|---|
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 25LD01 | 2025-12-05. Service campaign. The subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, water, or road salt could potentially enter the HV Floor Under Wire connector housing and could cause corrosion over time. Excessive corrosion could cause AM Radio Static during certain driving cycles, or the vehicle may not start. |
|---|---|
| L-TT-0326-23 Rev2 | 2025-09-09. Service bulletin. 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 Rev1 | 2025-07-10. Service bulletin. 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-SB-0029-25 | 2025-07-10. Service bulletin. Some 2024 – 2025 model year TX 350, TX 500h, and TX 500h+ vehicles equipped with a Mark Levinson sound system, may exhibit one or both of the following conditions: •Audio cuts off at high or maximum volume in some high bass audio settings. •A lack of bass and sound depth from the sound system, especially from the rear speakers and subwoofer. The stereo component amplifier assembly has been modified to improve these conditions and enhance the sound system performance. |
| L-TT-0340-25 | 2025-06-06. Service bulletin. 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-0024-25 | 2025-05-15. Service bulletin. Some 2023 – 2025 model year RX 350, RX 350h, RX 500h, and 2024 – 2025 model year TX 350, TX 500h, and TX 550h+ vehicles may exhibit a condition where the Blind Spot Monitor (BSM) system is inoperative, there is a BSM malfunction message on the multi-information display (MID), or the driving assist information indicator is illuminated, along with one or more of the following Diagnostic Trouble Codes (DTCs) present: •C1AB413 – Outer Mirror Indicator (Module "B" Side) Circuit Open •C1AB513 – Outer Mirror Indicator (Module "A" Side) Circuit Open The BSM sensor software has been updated to reduce the possibility of these conditions. |
| L-TT-0340-25 | 2025-05-15. Service bulletin. 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-0335-24 Rev1 | 2025-04-08. Service bulletin. Some customers of Lexus GX, TX, and UX have expressed concern that their vehicle’s multimedia screen will get stuck on either day or night mode, intermittently. |
| L-SB-0036-22 Rev2 | 2025-04-08. Service bulletin. 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 Rev1 | 2025-04-08. Service bulletin. 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. |