# Service bulletin L\-TT\-0338\-24

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: 11012764
- Published by NHTSA: 2025\-01\-09
- Manufacturer's number: L\-TT\-0338\-24
- Manufacturer's date: 2024\-12\-18
- Campaign id or software version: L\-TT\-0338\-24
- NHTSA component: ENGINE

## NHTSA's summary

Customers or Technicians may want to view the user manual or the troubleshooting guide for the Lexus EV Charger \(Part Number PTQ6410240\). Basic operation and diagnostic troubleshooting information is not found in the vehicle’s Owner’s Manual or the Repair Manual.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012764-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11012764-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2024 to 2025 LEXUS RZ

## Other bulletins for the same vehicles and component

- [L\-TT\-0349\-26](/bulletins/11031152.md), 2026-04-08, Service bulletin: ENGINE. Some Customers for the listed vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 charger. Additionally, most will indicate one or more of the LEDs on the charger will illuminate at the time of no charge. Charging at other stations is still possible.
- [L\-TT\-0347\-25](/bulletins/11020663.md), 2025-07-10, Service bulletin: ENGINE. Some ECUs can set a DTC that is common with other ECUs. This can lead to accidental use of the wrong repair manual when diagnosing these type of DTCs.
- [L\-SB\-0016\-25](/bulletins/11016787.md), 2025-04-08, Service bulletin: ENGINE. Some 2024 model year RZ 300e and RZ 450e vehicles may exhibit a condition where the charging limit setting defaults to full after every key cycle, removing the upper limit set by the customer. The electric converter unit assembly software logic has been modified to address this condition
- [L\-SB\-0016\-25](/bulletins/11015501.md), 2025-03-11, Service bulletin: ENGINE. Some 2024 model year RZ 300e and RZ 450e vehicles may exhibit a condition where the charging limit setting defaults to full after every key cycle, removing the upper limit set by the customer. The electric converter unit assembly software logic has been modified to address this condition
- [L\-TT\-0327\-23 Rev2](/bulletins/11010333.md), 2024-11-08, Service bulletin: ENGINE. EV Battery ECU Shows Software Update Available "YES", After Health Check
- [L\-TT\-0330\-24](/bulletins/11005118.md), 2024-07-23, 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.
- [L\-TT\-0330\-24](/bulletins/11005060.md), 2024-07-23, 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.
- [L\-SB\-0021\-23 Rev1](/bulletins/11003639.md), 2024-07-06, 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\-0021\-23 Rev1](/bulletins/11003584.md), 2024-07-06, 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.

JSON: [/v1/bulletins/11012764](/v1/bulletins/11012764)

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