Lexus bulletin LTT032623
What it saysTT: A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own. NHTSA’s full summary ↓
Lexus filed this with NHTSA as a service bulletin dated Aug 17, 2023, received Oct 16, 2023, about the communication. It names 65 model years (2018–2024). 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 communicationTT: A very small percentage of customers experience operational difficulties with some telematics features which they cannot resolve on their own. These resources, in conjunction with the Repair Manual, are for dealership personnel to assist those customers with user issues, user errors, and compatibility issues with other vehicle systems and external applications encountered while operating telematics features.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| LTT032623 | Service bulletin | Aug 17, 2023 | 10244110 | 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
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Model years it names
Source: as the manufacturer filed themand 23 more on this site: 2020 Lexus NX, 2019 Lexus NX, 2018 Lexus NX, 2023 Lexus RC, 2022 Lexus RC, 2021 Lexus RC, 2020 Lexus RC, 2019 Lexus RC, 2018 Lexus RC, 2024 Lexus RX, 2023 Lexus RX, 2022 Lexus RX, 2021 Lexus RX, 2020 Lexus RX, 2019 Lexus RX, 2024 Lexus RZ, 2023 Lexus RZ, 2024 Lexus UX, 2023 Lexus UX, 2022 Lexus UX, 2021 Lexus UX, 2020 Lexus UX, 2019 Lexus UX.
Also filed against model years this site has no page for: 2019 Lexus CT Hybrid; 2024 Lexus NON-Existant UX.
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 63 model years this bulletin names have filed 893 complaints with NHTSA since 2015.
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 communication
Source: same model, same component group1 other manufacturer communication filed against these Lexus models under the same component group (communication), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 23LD03-2 | Service bulletin | May 25, 2023 | TI: TECHNICAL INSTRUCTIONS FOR LIMITED SERVICE CAMPAIGN 23LD03 DCM REPLACEMENT CERTAIN 2023 Model Year RX350 CERTAIN 2023 Model Year RX35… |
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 LTT032623 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 LTT032623 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 LTT032623 cover?
The manufacturer filed it against 65 model years: 2024 Lexus ES, 2023 Lexus ES, 2022 Lexus ES, 2021 Lexus ES, 2020 Lexus ES, 2019 Lexus ES and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.