Lexus bulletin L-SB-0051-24 REV2
What it saysSome 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… NHTSA’s full summary ↓
Lexus filed this with NHTSA as a service bulletin dated Jun 25, 2025, received Jul 10, 2025, about the engine — 1 document under this number: L-SB-0051-24 Rev2. It names 6 model years (2019–2021). 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 communicationSome 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).
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| L-SB-0051-24 Rev2 | Service bulletin | Jun 25, 2025 | 11020671 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 16671-F2010 | Valve, Water | 1 | eBay Motors → |
| 16671-F2030 | Valve, Water | 1 | eBay Motors → |
| 16260-F0010 | Hose Assy, Water By-Pass, No.1 | — | eBay Motors → |
| 16260-F0300 | Hose Assy, Water By-Pass, No.1 | — | eBay Motors → |
| 16260-F0021 | Hose Assy, Water By-Pass, No.1 | — | eBay Motors → |
| 16260-F0310 | Hose Assy, Water By-Pass, No.1 | — | eBay Motors → |
| 00272-SLLC2 | Coolant – Super Long Life | 1 | eBay Motors → |
Read by machine from the document NHTSA serves (5 pages), read Sep 30, 2026. A part number is shown only where it matches Lexus’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 6 model years this bulletin names have filed 120 complaints with NHTSA since 2015. 10 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.
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
The front timing chain cover on the engine was leaking at 53k miles. This is a 2GR-FKS engine. We have had the car for 19k miles, and bought it as a Certified Pre-Owned. We're looking at spending over 10% of the purchase price of the car on a repair, after barely having it for three years
2020 Lexus ES · Engine · filed with NHTSA Jul 8, 2026 · ODI 11749126
The contact owned a 2021 Lexus UX 250 Hybrid. The contact stated that while their father was driving approximately at 65 mph when the warning for tire low pressure had illuminated. The driver pulled over to check the tires to the side of the road.
2021 Lexus UX · Engine · filed with NHTSA Sep 7, 2021 · ODI 11431984
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 group19 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-0021-25 | Service bulletin | Mar 10, 2026 | OBSOLETE NOTICE February 27, 2026: This bulletin is no longer applicable and is now obsolete. |
| 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. |
| 24LE02 | Warranty extension | Aug 7, 2025 | 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… |
| L-TT-0347-25 | Service bulletin | Jun 17, 2025 | 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 typ… |
| 25LC01 | Service campaign | Apr 17, 2025 | The subject vehicles are equipped with a low-pressure fuel pump which may stop operating. If this were to occur, warning lights and messages… |
| L-SB-0051-24 REV1 | Service bulletin | Jan 5, 2025 | Some 2021 ES 250 and 2019 – 2021 ES 300h and UX 200 model year vehicles equipped with an A25A-FKS, A25A-FXS, or M20A-FKS engine may exhibit… |
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 L-SB-0051-24 REV2 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 L-SB-0051-24 REV2 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 L-SB-0051-24 REV2 cover?
The manufacturer filed it against 6 model years: 2021 Lexus ES, 2020 Lexus ES, 2019 Lexus ES, 2021 Lexus UX, 2020 Lexus UX, 2019 Lexus UX. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.