Lexus bulletin L-SB-0043-23 REV1
Lexus filed this with NHTSA as a service bulletin dated Jun 13, 2025, received Jul 10, 2025, about the electrical system — 1 document under this number: L-SB-0043-23 Rev1. It names 107 model years (2016–2025). 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThe air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| L-SB-0043-23 Rev1 | Service bulletin | Jun 13, 2025 | 11020656 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. 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. Quote it at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themand 66 more model years on this site.
Also filed against model years this site has no page for: 2018 Lexus CT Hybrid.
A vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Common questions
Source: NHTSA, 49 CFR 579.5Is Lexus L-SB-0043-23 REV1 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-0043-23 REV1 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.
Which vehicles does L-SB-0043-23 REV1 cover?
The manufacturer filed it against 107 model years: 2017 Lexus CT, 2016 Lexus CT, 2025 Lexus ES, 2024 Lexus ES, 2023 Lexus ES, 2022 Lexus ES and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.