Lexus bulletin L-TT-0330-24
What it saysSome customers may notice momentary power dips on graphs produced by the Charge Point Charger’s phone App during A/C charging. NHTSA’s full summary ↓
Lexus filed this with NHTSA as a service bulletin dated Jun 18, 2024, received Jul 23, 2024, about the engine — 2 documents under this number. It names 3 model years (2023–2025). 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.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationSome customers may notice momentary power dips on graphs produced by the Charge Point Charger’s phone App during A/C charging.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| L-TT-0330-24 | Service bulletin | Jun 18, 2024 | 11005118 | |
| L-TT-0330-24 | Service bulletin | Jun 18, 2024 | 11005060 |
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 3 model years this bulletin names have filed 18 complaints with NHTSA since 2015. 1 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.
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 group9 other manufacturer communications filed against the Lexus RZ 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-0020-26 REV1 | Service bulletin | Sep 11, 2026 | Some 2026 model year RZ 350e, RZ 450e, and RZ 550e vehicles may exhibit the Diagnostic Trouble Code (DTC) U25521F associated with the level… |
| L-TT-0350-26 | Service bulletin | Jul 22, 2026 | State of Health (SOH): An estimate of battery health that is updated as the vehicle learns from operating and charging conditions over time.… |
| L-SB-0020-26 | Service bulletin | Jul 13, 2026 | Some 2026 model year RZ 350e, RZ 450e, and RZ 550e vehicles may exhibit the Diagnostic Trouble Code (DTC) U255221F associated with the level… |
| L-TT-0349-26 | Service bulletin | Mar 6, 2026 | Some Customers for the listed vehicles may have complaint of the following: unable to charge the vehicle using the supplied level 1 or 2 cha… |
| 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… |
| L-SB-0016-25 | Service bulletin | Feb 12, 2025 | Some 2024 model year RZ 300e and RZ 450e vehicles may exhibit a condition where the charging limit setting defaults to full after every key… |
| L-TT-0338-24 | Service bulletin | Dec 18, 2024 | Customers or Technicians may want to view the user manual or the troubleshooting guide for the Lexus EV Charger (Part Number PTQ6410240). Ba… |
| L-TT-0327-23 REV2 | Service bulletin | Oct 3, 2024 | EV Battery ECU Shows Software Update Available "YES", After Health Check |
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-TT-0330-24 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-0330-24 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-TT-0330-24 cover?
The manufacturer filed it against 3 model years: 2025 Lexus RZ, 2024 Lexus RZ, 2023 Lexus RZ. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.