Lincoln bulletin SSM 52490
What it saysOn 2024 Nautilus 2.0L EcoBoost-Hybrid vehicles, if engine damage or drivability diagnosis leads to replacement of any direct fuel injector assemblies, replace all 4 direct fuel injectors along with other necessary… NHTSA’s full summary ↓
Lincoln filed this with NHTSA as a service bulletin dated Apr 29, 2024, received May 3, 2024, about the fuel/propulsion system. It names 1 model year (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 communicationWhat it applies to, as NHTSA’s summary states it — build dates and equipment as the manufacturer filed them. The dealer checks the VIN and the build date on the door jamb; a vehicle outside the window is not covered by this bulletin.
On 2024 Nautilus 2.0L EcoBoost-Hybrid vehicles, if engine damage or drivability diagnosis leads to replacement of any direct fuel injector assemblies, replace all 4 direct fuel injectors along with other necessary repairs. Refer to Workshop Manual, Section 303-04B Direct Injection Fuel Rail Removal and Installation for the procedure on replacement of the direct injectors. Do not replace the port fuel injectors for this condition. Engineering is currently investigating this concern. Monitor OASIS for further updates.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SSM 52490 | Service bulletin | Apr 29, 2024 | 10254145 | PDF, 67 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 1 model year this bulletin names have filed 36 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 fuel/propulsion system
Source: same model, same component group8 other manufacturer communications filed against the Lincoln Nautilus under the same component group (fuel/propulsion system), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 55140 | Service bulletin | Aug 31, 2026 | Some 2025-2026 Maverick vehicles built on or before 05-Dec-2025 and 2024-2026 Nautilus vehicles built on or before 04-Sep-2025 may exhibit l… |
| DSM-25.5.6.2 | Over-the-air update | May 15, 2026 | Quality improvements include: -Addresses key off load battery usage caused by the Seat Control Module high current consumption |
| SSM 54823 | Service bulletin | May 15, 2026 | Some 2025-2026 Maverick vehicles built on or before 05-Dec-2025 and 2024-2026 Nautilus vehicles built on or before 04-Sep-2025 may exhibit l… |
| SSM 54810 | Service bulletin | May 8, 2026 | Some 2024-2026 Nautilus non-hybrid and 2025-2026 Aviator vehicles equipped with 28 radio speakers (minor feature code IDBBN) and 2025-2026 N… |
| TSB 26-2184 | Service bulletin | Apr 23, 2026 | This bulletin supersedes 23-2028. Reason for updates: increase the labor time allowance to account for axle removal. Some of the vehicles li… |
| SSM 53992 | Service bulletin | Jun 27, 2025 | 2025 Nautilus vehicles built on or after 16-Jun-2025 will come with the climate control system, interior lamps, ambient lighting, autolamp e… |
| 24B23 | Service bulletin | Oct 30, 2024 | Certain 2024 Model Year Nautilus Full Hybrid Electric Vehicles - High Pressure Fuel Injector Replacement |
| SSM 52568 | Service bulletin | May 24, 2024 | On 2024 Nautilus 2.0L EcoBoost-Hybrid vehicles, if engine damage or drivability diagnosis leads to replacement of any direct fuel injector a… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Lincoln, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Lincoln SSM 52490 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 SSM 52490 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 SSM 52490 cover?
The manufacturer filed it against 1 model year: 2024 Lincoln Nautilus. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.