# Service bulletin LSB006423

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: 10249323
- Published by NHTSA: 2024\-01\-29
- Manufacturer's number: LSB006423
- Manufacturer's date: 2024\-12\-15
- NHTSA component: EQUIPMENT; STRUCTURE; ELECTRICAL SYSTEM

## NHTSA's summary

TSB: Pre\-Delivery Service \(PDS\) is a critical step in satisfying our new car customers. Customer feedback indicates the following areas deserve special attention when performing PDS: ? Careful inspection for paint chips/scratches and body dents/dings. ? Proper operation of electrical accessories \(including interior light, clock, and radio reset\). ? Interior cleanliness. ? Proper function of mechanical systems. Customer retention and proper maintenance of vehicles are, and have always been, a major focus for Lexus. To help remind customers that regular service is essential to the proper maintenance of the vehicle, dealers are required to input their dealer information and set the service reminder on the Navigation Screen before delivery. By doing this, customers will be reminded to return to your dealership for service. \(See Page 2 of the GX 550 PDS Check Sheet, ?Set Dealer and Service Reminder.?\) This bulletin contains the PDS procedures that apply specifically to the 2024 model year GX 550. To properly perform a complete PDS, you must complete all procedures contained in this TSB as well as the GX 550 PDS Check Sheet. In addition, if the vehicle is stored for over 30 days, be sure to follow Long\-Term Vehicle Storage Guidelines.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249323-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10249323-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Body and frame, Electrical system, Equipment and accessories

## Vehicles listed

- 2024 LEXUS GX\!

## Recalls for the same vehicles and component

- [26V341000](/recalls/nhtsa/26V341000.md), 2026-05-27: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
- [26V179000](/recalls/nhtsa/26V179000.md), 2026-03-24: EQUIPMENT:OTHER:LABELS

## Other bulletins for the same vehicles and component

- [L\-SB\-0013\-25 Rev1](/bulletins/11029881.md), 2026-03-07, Service bulletin: STRUCTURE:BODY. Some 2024 model year GX 550 vehicles may exhibit an abnormal hood fluttering and/or vibration while driving 25 mph or higher. The mastic between the outer panel and the hood brace may have separated.
- [L\-SB\-0030\-24 Rev2](/bulletins/11027560.md), 2026-01-09, 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\-25](/bulletins/11024076.md), 2025-10-08, 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 Rev2](/bulletins/11022963.md), 2025-09-09, 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\-0042\-24 Rev1](/bulletins/11020659.md), 2025-07-10, Service bulletin: STRUCTURE:BODY. Some 2024 model year GX 550 vehicles equipped with the refresh seat function may exhibit a condition where the front passenger seat massager is inoperative. This condition is caused by the front passenger seat massager tube becoming detached during use.
- [L\-SB\-0043\-23 Rev1](/bulletins/11020656.md), 2025-07-10, 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\-25](/bulletins/11019328.md), 2025-06-06, 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\-25](/bulletins/11018325.md), 2025-05-15, 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\-TT\-0335\-24 Rev1](/bulletins/11016799.md), 2025-04-08, Service bulletin: ELECTRICAL SYSTEM. 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](/bulletins/11016784.md), 2025-04-08, 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.

JSON: [/v1/bulletins/10249323](/v1/bulletins/10249323)

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