Ford bulletin TSB 26-2251
What it saysThis article supersedes TSB 25-2545. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated May 28, 2026, received Jun 5, 2026, about the power train. It names 12 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 communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
This article supersedes TSB 25-2545. Reason for update: To correct the current Pinpoint Test description. Some of the vehicles listed in the Model statement above may require the replacement of the ambient air temperature sensor for various concerns. DTCs P0071, P0072, and/or P0073 may be present in the powertrain control module (PCM).
Trouble codes it names: P0071 P0072 P0073
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB 26-2251 | Service bulletin | May 28, 2026 | 11033574 | PDF, 480 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| HC3Z-12A647-A | Ambient Air Temperature Sensor | — | eBay Motors → |
| PC3Z-14A411-D | Wiring Pigtail Kit | — | eBay Motors → |
| HC3Z-17K709-A | Ambient Air Temperature Sensor Bezel | — | eBay Motors → |
| SC3Z-17D742-B | Mirror Cover (With Puddle Lamp) | — | eBay Motors → |
| SC3Z-17D742-A | Mirror Cover (Less Puddle Lamp) | — | eBay Motors → |
| 3U2Z-14A088-AB | Heat Shrink Tube | — | eBay Motors → |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 262251A | 2023-2025 F-Super Duty: Retrieve DTCs, And Replace The Ambient Air Temperature… | 0.7 hrs |
| 262251B | 2023-2025 F-Super Duty: Additional Time To Align 360 Degree Camera If Equipped. (Can… | 0.5 hrs |
Read by machine from the document NHTSA serves (3 pages), read Sep 29, 2026. A part number is shown only where it matches Ford’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. Listings and prices on eBay Motors are the seller’s.
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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: 2023 Ford F-550 SD; 2024 Ford F-550 SD; 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 9 model years this bulletin names have filed 211 complaints with NHTSA since 2015. 25 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.
The contact owns a 2024 Ford F-350. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted. There was no warning light illuminated. The vehicle was taken to the dealer but was not diagnosed or repaired. The dealer informed the contact that a software update had been completed on the TCM.
2024 Ford F-350 Super Duty · Power Train · filed with NHTSA Jul 16, 2025
Less than 4000 miles- first transmission failed while pulling a large trailer- ford replaced the transmission and the new transmission, only 200 miles later did the same thing when pulling a trailer, up hill. It throws the transmission into 10th gear and you loose all power, Check engine light comes on and it slams back into 4th gear.
2025 Ford F-450 Super Duty · Power Train · filed with NHTSA Sep 3, 2025
Slight vibration at highway speed accompanied by faint grinding noise. Ford installed front auto locker to only one front wheel and a dummy full time locker to right front wheel in non trimmer 2024 f250 and f350s. They know the problem because they issued a tsb 52423 but do not contact truck owners of issue.
2024 Ford F-250 Super Duty · Power Train · filed with NHTSA Aug 12, 2025
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 group59 other manufacturer communications filed against these Ford models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB 26-2406 | Service bulletin | Sep 5, 2026 | Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Poor shift quality Illumi… |
| TSB 26-2252 | Service bulletin | Sep 5, 2026 | Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions: Poor shift quality Illumi… |
| SSM 55098 | Service bulletin | Aug 18, 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… |
| TSB 26-2375 | Service bulletin | Aug 12, 2026 | This article supersedes TSB 26-2050 to increase the labor operation allowance of labor operations A and B. Some of the vehicles listed in th… |
| SSM 54900 | Service bulletin | Jun 4, 2026 | Some 2023-2026 F-Super Duty vehicles equipped with a 10R100 or 10R140 transmission may exhibit an intermittent failure to engage forward or… |
| TSB 26-2263 | Service bulletin | May 30, 2026 | This bulletin supersedes 26-2112. Reason For Update: add 2026 model year vehicles, update LV fluid XT-10-QLVC and CXT-10-LV6 description to… |
| TSB 26-2216 | Service bulletin | May 6, 2026 | This bulletin supersedes 25-2549. Reason for update: To add 2020 model year chassis cab vehicles. Some of the vehicles listed in the Model s… |
| ECM-26.10.0 | Over-the-air update | May 5, 2026 | 26E01 Recall remedy -Powertrain Control Module calibration update to ensure emissions system restrictions function properly when the vehicle… |
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 TSB 26-2251 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 TSB 26-2251 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 TSB 26-2251 cover?
The manufacturer filed it against 12 model years: 2025 Ford F-250 Super Duty, 2024 Ford F-250 Super Duty, 2023 Ford F-250 Super Duty, 2025 Ford F-350 Super Duty, 2024 Ford F-350 Super Duty, 2023 Ford F-350 Super Duty and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: 2023-2025 F-Super Duty: built on or before 14 Jun 2025 — the build date is on the certification label in the driver’s door jamb.