# Service campaign 24LC04

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 campaign
- NHTSA id: 11014195
- Published by NHTSA: 2025\-02\-12
- Manufacturer's number: 24LC04
- Manufacturer's date: 2025\-01\-24
- Campaign id or software version: 24LC04
- NHTSA component: ENGINE

## NHTSA's summary

Lexus provided certain specifications for horsepower when the LX600 was introduced into the market. It was recently discovered that these vehicles may have a horsepower rating lower than those specifications.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014195-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014195-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2022 to 2024 LEXUS LX

## Recalls for the same vehicles and component

- [25V767000](/recalls/nhtsa/25V767000.md), 2025-11-06: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL
- [24V381000](/recalls/nhtsa/24V381000.md), 2024-05-30: ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

## Other bulletins for the same vehicles and component

- [24LC04](/bulletins/11021722.md), 2025-08-08, Service bulletin: ENGINE; ELECTRICAL SYSTEM. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 24LC04 REPROGRAMMING FOR ENGINE ELECTRONIC CONTROL UNIT CERTAIN 2022, 2023 and 2024 LX600 VEHICLES
- [24LC04](/bulletins/11021721.md), 2025-08-08, Service campaign: ELECTRICAL SYSTEM; ENGINE. Lexus provided certain specifications for horsepower when the LX600 was introduced into the market. It was recently discovered that these vehicles may have a horsepower rating lower than those specifications.
- [L\-SB\-0007\-25](/bulletins/11014206.md), 2025-02-12, Service bulletin: ENGINE. Some 2022 – 2024 model year LX 600 vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes \(DTCs\) present: •P030000 – Random/Multiple Cylinder Misfire Detected •P030027 – Random/Multiple Cylinder Misfire Detected \(Emission\) Signal Rate of Change Above Threshold •P030085 – Random/Multiple Cylinder Misfire Detected \(Over Temperature\) Signal Above Allowable Range The Engine Control Module \(ECM\) \(SAE term: Powertrain Control Module / PCM\) logic has been modified to address this condition.
- [24LC04](/bulletins/11014197.md), 2025-02-12, Service campaign: ENGINE. SPECIAL SERVICE CAMPAIGN 24LC04 Certain 2022\-2024 Model Year Lexus LX600 Engine Electronic Control Unit \(ECU\) Reprogram Frequently Asked Questions
- [24LC04](/bulletins/11014196.md), 2025-02-12, Service bulletin: ENGINE. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 24LC04 REPROGRAMMING FOR ENGINE ELECTRONIC CONTROL UNIT CERTAIN 2022, 2023 and 2024 LX600 VEHICLES
- [24LC04](/bulletins/11014194.md), 2025-02-12, Service campaign: ENGINE. Lexus provided certain specifications for horsepower when the LX600 was introduced into the market. It was recently discovered that these vehicles may have a horsepower rating lower than those specifications.
- [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/11014195](/v1/bulletins/11014195)

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