# Service bulletin LSB006023

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: 10247804
- Published by NHTSA: 2023\-12\-26
- Manufacturer's number: LSB006023
- Manufacturer's date: 2023\-11\-15
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

TSB: Some 2019 ? 2023 model year ES 350, 2018 ? 2023 model year IS 350, IS 300, RC 350, RC 300, 2016 ? 2022 model year RX 350, and 2016 ? 2020 model year GS 350 vehicles equipped with a 2GR\-FKS engine may exhibit a knocking noise from the vacuum pump at idle. Follow the Repair Procedure in this bulletin to improve this condition.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10247804-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10247804-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2019 to 2023 LEXUS ES
- 2016 to 2020 LEXUS GS
- 2018 to 2023 LEXUS IS
- 2018 to 2023 LEXUS RC
- 2016 to 2022 LEXUS RX

## Other bulletins for the same vehicles and component

- [L\-SB\-0021\-25](/bulletins/11031155.md), 2026-04-08, Service bulletin: ENGINE. OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.
- [L\-SB\-0021\-25](/bulletins/11029897.md), 2026-03-07, Service bulletin: ENGINE. OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete.
- [24LE02](/bulletins/11022950.md), 2025-09-09, Service campaign: ENGINE. The specific condition covered by this program is for a small engine coolant leak that can occur from the flow shut\-off valve that can allow coolant to drip on other parts of the vehicle. This can cause "Engine Maintenance Required" to be displayed on the instrument cluster or cause the A/C not to function normally. Although the flow shut\-off valve is covered by Lexus’ New Vehicle Limited Warranty for 48 months or 50,000 miles \(whichever comes first\), we at Lexus care about the guests’ ownership experience. Lexus is providing coverage for repairs related to Flow Shut\-off Valve Coolant Leak
- [L\-SB\-0032\-25](/bulletins/11021730.md), 2025-08-08, Service bulletin: ENGINE. Some 2016 – 2020 model year GS F, 2008 – 2014 model year IS F, 2022 – 2025 model year IS 500, 2018 – 2025 model year LC 500, 2021 – 2025 model year LC 500c, and 2015 – 2025 model year RC F vehicles with 2UR\-GSE engines may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes \(DTCs\): •P0505 – Idle Control System •P2111 – Throttle Actuator Control System – Stuck Open The throttle body assembly with motor and ventilation hoses no. 2 and no. 3 have been modified to address these conditions.
- [L\-SB\-0051\-24 Rev2](/bulletins/11020671.md), 2025-07-10, Service bulletin: ENGINE. Some 2021 model year ES 250 and 2019 – 2021 model year ES 300h and UX 200 vehicles equipped with an A25A\-FKS, A25A\-FXS, or M20A\-FKS engine may exhibit a condition in which an “Engine Maintenance Required” message is displayed in the Multi\-Information Display \(MID\). Additionally, the vehicle will exhibit DTC\(s\) P268111 \(Engine Coolant Bypass Valve Circuit Short to Ground\) and/or P268115 \(Engine Coolant Bypass Valve Circuit Short to Battery or Open\).
- [25LC01](/bulletins/11019352.md), 2025-06-06, Service bulletin: ENGINE. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 25LC01 LOW\-PRESSURE FUEL PUMP CERTAIN 2019 ES 300h VEHICLES
- [25LC01](/bulletins/11019351.md), 2025-06-06, Service campaign: ENGINE. SPECIAL SERVICE CAMPAIGN 25LC01 Certain 2019 Model Year ES 300h Vehicles Low\-Pressure Fuel Pump Frequently Asked Questions
- [25LC01](/bulletins/11019350.md), 2025-06-06, Service campaign: ENGINE. The subject vehicles are equipped with a low\-pressure fuel pump which may stop operating. If this were to occur, warning lights and messages may be displayed on the instrument panel, and the engine may run rough. This will lead to the vehicle entering a failsafe driving mode in which the vehicle can still be driven for certain distances.
- [25LC01](/bulletins/11019343.md), 2025-06-06, Service bulletin: ENGINE. TECHNICAL INSTRUCTIONS FOR SPECIAL SERVICE CAMPAIGN 25LC01 LOW\-PRESSURE FUEL PUMP CERTAIN 2019 ES 300h VEHICLES
- [25LC01](/bulletins/11019342.md), 2025-06-06, Service campaign: ENGINE. Certain 2019 Model Year ES 300h Vehicles Low\-Pressure Fuel Pump Frequently Asked Questions

JSON: [/v1/bulletins/10247804](/v1/bulletins/10247804)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LSB006023&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10247804&vehicle=Service%20bulletin%20LSB006023)