TSB LSB006023 — Lexus Service bulletin

LSB006023 is a service bulletin on file with NHTSA for the Lexus RX, 2016–2019 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. 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…

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
1Vehicle named
4Model years

Vehicles and model years LSB006023 names

VehicleModel years
Lexus RX 2016, 2017, 2018, 2019

Every document filed under LSB006023

Document IDFiledType
LSB006023 November 15, 2023 Service bulletin

What LSB006023 covers

Engine — the component vocabulary NHTSA files this communication under.

← All Lexus RX TSB years TSB lookup by model

Questions buyers ask

What is TSB LSB006023?

LSB006023 is a service bulletin filed with NHTSA by Lexus, covering the Lexus RX across the 2016–2019 model years. NHTSA's summary reads: 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…

Which vehicles does LSB006023 cover?

NHTSA's file names Lexus RX (2016–2019). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB LSB006023 a recall, and is the repair free?

No. LSB006023 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of LSB006023?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under LSB006023, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under LSB006023. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.