Ford over-the-air update ECM-25.10.21.2
What it saysQuality improvements include: -Updates the emissions control system, improving performance in order to ensure meeting regulatory requirements NHTSA’s full summary ↓
Ford filed this with NHTSA as an over-the-air update dated Feb 6, 2026, received Feb 25, 2026, about the engine — 1 document under this number: ECM-25.10.21.2 SuperDuty. It names 4 model years (2025). An over-the-air update 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 communicationQuality improvements include: -Updates the emissions control system, improving performance in order to ensure meeting regulatory requirements
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| ECM-25.10.21.2 SuperDuty | Over-the-air update | Feb 6, 2026 | 11028999 | PDF, 22 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 themAlso filed against model years this site has no page for: 2025 Ford F-550 SD.
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 3 model years this bulletin names have filed 33 complaints with NHTSA since 2015. 10 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.
The contact owns a 2025 Ford F-350 SD. The contact stated that while driving at an undisclosed speed, the DEF (Diesel Exhaust Fluid) level reading became inoperable with the message “500 Miles to Empty - Refill Soon” displayed. The vehicle was taken to the dealer but was not diagnosed.
2025 Ford F-350 Super Duty · Engine · filed with NHTSA Mar 18, 2026 · ODI 11725341
My vehicles turn signal audio indicator is extremely quiet and cannot be heard at speeds above 45MPH creating a safety issue. I have checked the vehicle audio settings in addition to the vehicle owner manual and there is no user setting to adjust audio.
2025 Ford F-350 Super Duty · Electrical System · filed with NHTSA Feb 18, 2026 · ODI 11718880
The info system (Bluetooth) is not working and makes a high piercing noise. The vehicle is available for inspection upon request. The safety of others is at risk due to the fact that you can only use your phone in your hand in this vehicle.
2025 Ford F-250 Super Duty · Electrical System · filed with NHTSA Jan 20, 2026 · ODI 11712143
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 group38 other manufacturer communications filed against these Ford models under the same component group (engine), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 26N03 | Other | Aug 26, 2026 | Customer Satisfaction Program 26N03 Certain 2017-2019 Model Year Super Duty Vehicles w/ 6.7L Diesel Engines Diesel Particulate Filter Replac… |
| 26E02 | Other | Aug 26, 2026 | NEW VEHICLE DELIVERY HOLD Emissions Recall 26E02 Certain 2016-2019 F-650 - 750 and 2017-2019 F-350 - 550 Vehicles Equipped With 6.7L Diesel… |
| 25M01 | Other | Jul 28, 2026 | Customer Satisfaction Program 25M01 Certain 2021 Model Year F-150 3.0L Diesel Engine and 2020-2022 Model Year Super Duty with 6.7L Diesel En… |
| 25N14 | Other | Jun 24, 2026 | Certain 2022 Model Year F-250 - F-600 with 6.7L Diesel Engines One-Time Replacement for Diesel Particulate Filter Assembly Failures, If Re… |
| 25E09 | Emissions | Jun 24, 2026 | NEW VEHICLE DEMONSTRATION / DELIVERY HOLD Emissions Recall 25E09 Certain 2022 Model Year F-250 - F-600 Vehicles with 6.7L Engines Powertrain… |
| TSB 26-2256 | Service bulletin | Jun 19, 2026 | This article supersedes TSB 25-2572 to update the Parts List to correct the part number LC3Z-6006-L to LC3Z-6781-A, remove the flex plate bo… |
| 22N05-S3 | Service bulletin | Jun 5, 2026 | Customer Satisfaction Program 22N05 - Supplement #3 Certain 2022 Model Year Super Duty with 6.7L Diesel Engine One-Time Replacement for Dies… |
| SSM 54690 | Service bulletin | Mar 26, 2026 | Some 2013-2016 Super Duty vehicles equipped with a 6.7L diesel engine and 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford ECM-25.10.21.2 a recall?
No. A over-the-air update 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 ECM-25.10.21.2 repair free?
A over-the-air update 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 ECM-25.10.21.2 cover?
The manufacturer filed it against 4 model years: 2025 Ford F-250 Super Duty, 2025 Ford F-350 Super Duty, 2025 Ford F-450 Super Duty, 2025 Ford F-550 SD. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.