Land Rover bulletin N918 - 01OCT24
What it saysGasoline Catalytic Converter Malfunction Indicator Lamp (MIL) NHTSA’s full summary ↓
Land Rover filed this with NHTSA as a service bulletin dated Oct 1, 2024, received Nov 7, 2024, about the power train. It names 3 model years (2021–2023). 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 communicationGasoline Catalytic Converter Malfunction Indicator Lamp (MIL)
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| N918 - 01OCT24 | Service bulletin | Oct 1, 2024 | 11010181 | PDF, 301 KB |
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 209 complaints with NHTSA since 2015. 7 of them name Power Train — 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.
On several occasions my car has shifted from Drive into Neutral while I was at a light and the vehicle had shut itself off as part of the Intelligent Start Stop feature. I see that this same issue has been happening to several other Owners who have reported this to the NHTSA.
2023 Land Rover Defender · Power Train · filed with NHTSA Apr 6, 2023 · ODI 11515844
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 power train
Source: same model, same component group35 other manufacturer communications filed against the Land Rover Defender under the same component group (power train), newest first. The eight newest are listed; the rest are on the Land Rover list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM76508 - 11SEP26 | Other | Oct 7, 2026 | Diagnostic Trouble Code stored in the Powertrain Control Module(PCM). The DTC may be unable to be cleared and may return to a confirmed stat… |
| SSM76457 - 26MAY26 | Other | May 26, 2026 | Amber MIL being displayed on the Instrument Panel Cluster on vehicles equipped with a Gen4 transmission. |
| SSM76457 - 21MAY26 | Other | May 21, 2026 | Amber MIL being displayed on the Instrument Panel Cluster on vehicles equipped with a Gen4 transmission. |
| SSM76454 - 12MAY26 | Other | May 12, 2026 | Malfunction Indicator Lamp (MIL) is illuminated on the instrument panel. |
| SSM76379 - 22AUG25 | Other | Aug 22, 2025 | Malfunction Indicator Lamp |
| TUCC_AUG2025_33 | Other | Aug 15, 2025 | Audible clunk noise from rear driveline during low-speed throttle inputs. |
| TUCC_AUG2025_32 | Other | Aug 15, 2025 | Oil leaks from the transfer case area of the vehicle. |
| TUCC_JUL2025_40 | Other | Jul 12, 2025 | Coolant Level Low message displayed on the instrument panel cluster. |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Land Rover, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Land Rover N918 - 01OCT24 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 N918 - 01OCT24 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 N918 - 01OCT24 cover?
The manufacturer filed it against 3 model years: 2023 Land Rover Defender, 2022 Land Rover Defender, 2021 Land Rover Defender. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.