Lexus service campaign 24LC03
What it saysThe Engine Control Computer software has a programing error which can cause the exhaust variable valve timing (VVT) locking pin to temporarily get stuck. NHTSA’s full summary ↓
Lexus filed this with NHTSA as a service campaign dated Oct 10, 2024, received Nov 6, 2024, about the electrical system — 6 documents under this number. It names 5 model years (2023–2024). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThe Engine Control Computer software has a programing error which can cause the exhaust variable valve timing (VVT) locking pin to temporarily get stuck. When this happens, an engine malfunction indicator lamp (MIL) can appear on the dashboard as well as diagnostic trouble code (DTC), P05CE00 to be set.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24LC03 | Service bulletin | Oct 10, 2024 | 11010337 | not found |
| 24LC03 | Service campaign | Sep 19, 2024 | 11010085 | |
| 24LC03 | Other | Sep 18, 2024 | 11010084 | |
| 24LC03 | Service bulletin | Sep 18, 2024 | 11010079 | |
| 24LC03 | Service campaign | Sep 18, 2024 | 11010078 | |
| 24LC03 | Service campaign | Sep 18, 2024 | 11010077 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty |
|---|---|---|
| 00410-92007 | — | — |
| 00451-00001 | — | — |
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 24LC03R1 | Update Engine Control ECU Software | 0.8 hrs |
Read by machine from the document NHTSA serves (11 pages), read Sep 30, 2026. A part number is shown only where it matches Lexus’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote.
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 5 model years this bulletin names have filed 242 complaints with NHTSA since 2015. 86 of them name Electrical System, 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.
When removing foot from gas pedal the rpm shoot up to almost 4k instead of switching to EV mode or dropping to 1k rpm’s. This has scared my wife causing her to slam on brakes as she thought throttle was stuck since the rpm’s shot up. This is dangerous. It doesn’t happen all the time and Lexus did duplicate it but said was normal
2023 Lexus RX · Engine · filed with NHTSA Jun 23, 2025 · ODI 11668752
The contact owns a 2024 Lexus NX 350. The contact stated that while his wife was driving approximately 40 MPH, the instrument cluster went blank. No warning lights were illuminated. The vehicle was taken to the local dealer, but no fault was found. The failure was self-corrected. The vehicle was not diagnosed or repaired.
2024 Lexus NX · Electrical System · filed with NHTSA Mar 31, 2026 · ODI 11728248
When we purchased this car in June 2024 it did not have an engine revving issue. The engine, electrical or transmission maybe all of them have SERIOUS SAFETY ISSUES! When driving and you let off the gas pedal the engine starts revving very loudly, it scares the heck out of you because you don't know if you can stop!
2024 Lexus RX · Engine · filed with NHTSA Sep 3, 2025 · ODI 11684648
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 electrical system
Source: same model, same component group62 other manufacturer communications filed against these Lexus models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Lexus list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 23LD04 | Service campaign | Jul 2, 2026 | DP: The subject vehicles are equipped with a GPS antenna wire harness that will not allow the GPS to operate when the vehicle is off as inte… |
| L-SB-0011-26 | Service bulletin | May 7, 2026 | A 12V auxiliary battery with increased capacity has been released as an optional replacement. |
| L-SB-0057-22 OBSOLETE | Service bulletin | Feb 2, 2026 | OBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete. Please see L-SB-0004-26. |
| L-SB-0004-26 | Service bulletin | Jan 23, 2026 | Some 2018 – 2025 model year Lexus vehicles equipped with the Enform™ 2.0 Navigation System, require a Special Service Tool (SST) USB flash d… |
| 25LD01 | Service campaign | Nov 13, 2025 | The subject vehicles are equipped with a rear motor unit and an HV Floor Under Wire that provide high voltage to operate the motor. Mud, wat… |
| 23LE05 | Service campaign | Sep 26, 2025 | Although the HV Floor Under Wire Harness and Rear Traction Motor Cable is covered by Lexus New Vehicle Limited Warranty for 4 years or 50,00… |
| L-TT-0326-23 REV2 | Service bulletin | Aug 19, 2025 | Some customers may experience operational difficulties with some telematics features which they cannot resolve on their own. These resources… |
| L-SB-0030-25 | Service bulletin | Jul 23, 2025 | Some 2024 model year NX 350 vehicles equipped with a T24A-FTS engine may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P0420… |
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 24LC03 a recall?
No. A service campaign 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 24LC03 repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does 24LC03 cover?
The manufacturer filed it against 5 model years: 2024 Lexus NX, 2023 Lexus NX, 2024 Lexus RX, 2023 Lexus RX, 2024 Lexus TX. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.