Lexus bulletin 23LE04- Multiple
What it saysDP: Although the Brake Booster and Brake Booster Pump Assembly are covered by Lexus?s New Vehicle Limited Warranty for 4 years or 50,000 miles (whichever comes first), we at Lexus care about the customers? ownership… NHTSA’s full summary ↓
Lexus filed this with NHTSA as a service bulletin dated Mar 2, 2023, received Apr 17, 2023, about the service brakes. It names 7 model years (2016–2019). 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 communicationDP: Although the Brake Booster and Brake Booster Pump Assembly are covered by Lexus?s New Vehicle Limited Warranty for 4 years or 50,000 miles (whichever comes first), we at Lexus care about the customers? ownership experience. Lexus is providing coverage for repairs in the subject vehicles related to certain internal malfunctions of the Brake Booster Pump Assembly and/or Brake Booster, depending on the model.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 23LE04- Multiple | Service bulletin | Mar 2, 2023 | 10234307 | 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 themAlso filed against model years this site has no page for: 2017 Lexus LS600H.
A 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 320 complaints with NHTSA since 2015. 58 of them name Service Brakes — 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.
On the 2017 Lexus RX, the 12 owners who gave an odometer reading for Service Brakes reported it at a median of 13,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
1. At on , I was pulling into my gym's parking lot, when I stepped on the break to park my car, instead of stopping, the car accelerates rapidly and crashed through the other side of the sidewalk where there were light pole and cement walls, throwing me forward and backward with seat belt on, I was in total shock! 2.
2018 Lexus RX · Service Brakes · filed with NHTSA Oct 23, 2024 · ODI 11621427
Loss of power brake assist. The Lexus dealer diagnosed a failed vacuum pump. This is common with the 2016/2017 RX 350's. Lexus has admitted a manufacturing problem with the pumps and has a service bulletin (L-SB-0010-18) and a safety recall on the 2017's (JLD J2D). The recall should be extended to the 2016's.
2016 Lexus RX · Service Brakes · filed with NHTSA Mar 20, 2024 · ODI 11578550
I’ve approximately the last 45 thousand miles, Lexus dealers have replaced the brake actuator and other components of the brake system on this vehicle at least 6 times due to noise issues.
2019 Lexus RX · Service Brakes · filed with NHTSA May 31, 2024 · ODI 11591735
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 service brakes
Source: same model, same component group9 other manufacturer communications filed against these Lexus models under the same component group (service brakes), newest first. The eight newest are listed; the rest are on the Lexus list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| L-SB-0028-26 | Service bulletin | Sep 30, 2026 | Some 2018 – 2023 model year LC 500, and LC 500h, 2021 – 2023 model year LC 500c, 2018 – 2023 model year LS 500, and LS 500h, 2015 model year… |
| L-SB-0053-25 REV2 | Service bulletin | Jul 1, 2026 | Some 2022 – 2026 model year LX 600, 2024 – 2026 model year GX 550, and 2025 – 2026 model year LX 700h vehicles may exhibit a condition where… |
| L-SB-0053-25 | Service bulletin | Feb 21, 2026 | Some 2024 – 2026 model year GX 550, 2022 – 2026 model year LX 600, and 2025 – 2026 model year LX 700h vehicles may exhibit a condition where… |
| L-SB-0036-24 OBSOLETE | Service bulletin | Nov 21, 2025 | OBSOLETE NOTICE November 21, 2025: This bulletin is now obsolete. Please see L-SB-0053-25 |
| L-SB-0036-24 REV1 | Service bulletin | Feb 10, 2025 | Some 2024 – 2025 model year GX 550 and 2022 – 2025 model year LX 600 vehicles may exhibit a condition where the front brakes produce a squea… |
| 24LE03 | Warranty extension | Jan 30, 2025 | Although the Brake Booster and Brake Booster Pump Assembly are covered by Lexus’s New Vehicle Limited Warranty for 4 years or 50,000 miles… |
| L-SB-0008-25 | Service bulletin | Jan 29, 2025 | Some 2016 – 2018 model year GS 450h, 2013 – 2016 model year LS 600h, and 2018 – 2021 model year NX 300h vehicles may exhibit a condition in… |
| L-SB-0013-22 Rev | Service bulletin | Mar 15, 2024 | TSB: Some 2018 ? 2023 model year LS 500 and LS 500h vehicles may exhibit a knock/clunk noise from the rear of the vehicle when applying the… |
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 23LE04- Multiple 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 23LE04- Multiple 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 23LE04- Multiple cover?
The manufacturer filed it against 7 model years: 2017 Lexus LS, 2016 Lexus LS, 2019 Lexus RX, 2018 Lexus RX, 2017 Lexus RX, 2016 Lexus RX and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.