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HomeBulletinsLexus L-TT-0341-25
Manufacturer communication · Service bulletin

Lexus bulletin L-TT-0341-25

Lexus filed this with NHTSA as a service bulletin dated Apr 2, 2025, received May 15, 2025, about the electrical system — 2 documents under this number. It names 46 model years (2018–2025). 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 communication

To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.

Manufacturer campaign id L-TT-0341-25 Kind Service bulletin Manufacturer date Apr 2, 2025 Received by NHTSA May 15, 2025 Components Electrical System

Documents filed under this number

DocumentKindDatedNHTSA id
L-TT-0341-25Service bulletinApr 2, 202511019329
L-TT-0341-25Service bulletinApr 2, 202511018326

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.

Common questions

Source: NHTSA, 49 CFR 579.5

Is Lexus L-TT-0341-25 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-TT-0341-25 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-TT-0341-25 cover?

The manufacturer filed it against 46 model years: 2022 Lexus ES, 2021 Lexus ES, 2020 Lexus ES, 2019 Lexus ES, 2023 Lexus GX, 2022 Lexus GX and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.