Lexus bulletin LSB006023
What it saysTSB: 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… NHTSA’s full summary ↓
Lexus filed this with NHTSA as a service bulletin dated Nov 15, 2023, received Dec 26, 2023, about the engine. It names 29 model years (2016–2023). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationTSB: 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.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LSB006023 | Service bulletin | Nov 15, 2023 | 10247804 | not found |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 29 model years this bulletin names have filed 677 complaints with NHTSA since 2015. 70 of them name Engine — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
I am reporting a safety issue with a 2016 Lexus RX350, VIN , with about 60,000 miles. The vehicle is registered in and was being driven to when it suddenly overheated on XXX near . The warning lights appeared while the vehicle was traveling at highway speed. The driver immediately took the first available exit within about one minute.
2016 Lexus RX · Engine · filed with NHTSA Jul 20, 2026 · ODI 11751679
This vehicle has a recurring, safety-critical defect involving intermittent engine misfires, flashing MILs, reduced engine power, sudden loss of acceleration, and noticeable engine shaking. Despite multiple repair attempts and extended diagnostics by a dealership, with manufacturer technical assistance, the defect continues.
2020 Lexus IS · Engine · filed with NHTSA Jan 27, 2026 · ODI 11713779
Driving car experienced a loud thump. Lost all engine power. Pulled to side of road. Had a hybrid system unavailable warning. Called a tow. Checked oil level to find it below the low mark. Car left a huge puddle of oil when loaded. Got to dealership. They found a hole in the engine block. Engine seized.
2019 Lexus ES · Engine · filed with NHTSA Mar 7, 2025 · ODI 11646961
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the engine
Source: same model, same component group34 other manufacturer communications filed against these Lexus models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Lexus list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| L-SB-0040-20 OBSOLETE | Service bulletin | Sep 22, 2026 | OBSOLETE NOTICE September 22, 2026: This bulletin is now obsolete. Please see L-SB-0026-26 |
| L-SB-0026-26 | Service bulletin | Sep 22, 2026 | This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. This bull… |
| L-SB-0012-26 | Service bulletin | May 11, 2026 | Some 2023 — 2025 model year RX 350h customers may experience a high engine RPM/noise when coasting or braking when going downhill with high… |
| L-SB-0010-26 | Service bulletin | Apr 24, 2026 | Some customers of 2023 – 2025 model year RX 350h, RX 500h, and 2024 – 2025 model year TX 500h vehicles may experience one or more of the fol… |
| L-SB-0021-25 | Service bulletin | Mar 10, 2026 | OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete. |
| L-TT-0349-26 | Service bulletin | Mar 6, 2026 | Some Customers for the listed vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 cha… |
| L-SB-0021-25 OBSOLETE | Service bulletin | Feb 27, 2026 | OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete. |
| L-SB-0052-25 | Service bulletin | Nov 21, 2025 | Some 2022 – 2025 model year NX 450h+ and 2024 – 2025 RX 450h+ vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P01… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Lexus, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Lexus LSB006023 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the LSB006023 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every Toyota warranty extension on file lists the ones Toyota has filed.
Which vehicles does LSB006023 cover?
The manufacturer filed it against 29 model years: 2023 Lexus ES, 2022 Lexus ES, 2021 Lexus ES, 2020 Lexus ES, 2019 Lexus ES, 2020 Lexus GS and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.