Ford bulletin TSB 26-2304
What it saysReason for update: to add 2023-2026 F-150 2.7L vehicles. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Jul 1, 2026, received Jul 6, 2026, about the power train. It names 6 model years (2021–2026). 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 bulletin supersedes 25-2383. Reason for update: to add 2023-2026 F-150 2.7L vehicles. Some of the vehicles listed in the Model Statement may exhibit a vibration/shudder felt during light throttle tip in at highway speeds (8,9,10 gear) with no diagnostic trouble codes (DTC) present. This may be due to various software parameters in the powertrain control module (PCM).
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB 26-2304 | Service bulletin | Jul 1, 2026 | 11034540 | PDF, 99 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 262304A | 2021-2022 F-150 3.5L EcoBoost, 2021-2026 2.7L EcoBoost: Reprogram The PCM Following… | 0.3 hrs |
Read by machine from the document NHTSA serves (1 page), 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 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 6 model years this bulletin names have filed 2,951 complaints with NHTSA since 2015. 1,540 of them name Power Train, Electrical System — 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 the 2021 Ford F-150, the 85 owners who gave an odometer reading for Power Train reported it at a median of 55,000 miles. That figure is one model year’s, not the whole range this bulletin covers — medians from different model years are not averaged.
Passenger side rear axle retention bolt sheared off. Discovered during routine maintenance / tire rotation. Unknown how safety was at risk -- dealer told me once discovered that the vehicle would be repaired under warranty, and they could do in 24 hours, so no discussion about unsafe to drive as others have reported they were told.
2022 Ford F-150 · Power Train · filed with NHTSA Nov 20, 2022
**2025 Ford F-150 – Repeated Wiring Harness Damage** I am reporting two separate incidents involving a 2025 Ford F-150 that resulted in significant damage to vehicle wiring harnesses and required replacement of major wiring components. On March 4, 2026, the vehicle sustained wiring damage during a dog-related incident.
2025 Ford F-150 · Electrical System · filed with NHTSA Aug 28, 2026
EIWE (Electronic Integrated Wheel End) failure or malfunction. Ford has multiple Field Service Engineers aware of the issue with no fix found. Multiple vehicles not only at one dealership but across the country have confirmed issues. Ford Customer Relations is aware and has an open case with me and many other owners.
2023 Ford F-150 · Power Train · filed with NHTSA Dec 9, 2023
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 group126 other manufacturer communications filed against the Ford F-150 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 26-2408 | Service bulletin | Sep 22, 2026 | This bulletin supersedes 26-2309. Reason For Update: update the Model section to remove Aviator 10R80, update the Parts list to add 3.3L to… |
| 26U05 | Other | Jul 14, 2026 | Recommended Repair Prior to Sale Update Prior to Sale 26U05 Certain 2026 Model Year F-150 Vehicles Transmission Fluid Cooler Coolant Hose Pu… |
| TSB 26-2294 | Service bulletin | Jul 9, 2026 | This bulletin supersedes 26-2066. Reason for update: To remove "(2024 only)" from the Issue statement to include 2021-2025 vehicles that may… |
| 26N04 | Other | Jul 9, 2026 | Customer Satisfaction Program 26N04 Certain 2015-2017 Model Year F-150 Vehicles Equipped with a 6R80 Transmission Transmission Molded Leadfr… |
| TSB 26-2309 | Service bulletin | Jul 2, 2026 | This bulletin supersedes 26-2241. Reason For Update: update the parts list to correct the claim quantity of the part number JB3Z-4B496-B fro… |
| TSB 26-2287 | Service bulletin | Jun 18, 2026 | This article supersedes 25-2302. Reason for update: update the labor time allowance for F-150 vehicles, update the Parts list to replace the… |
| TSB 26-2281 | Service bulletin | Jun 12, 2026 | This bulletin supersedes 26-2091. Reason for update: To update the production cutoff date for Transit vehicles. Some of the vehicles listed… |
| 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… |
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 26-2304 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 26-2304 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 26-2304 cover?
The manufacturer filed it against 6 model years: 2026 Ford F-150, 2025 Ford F-150, 2024 Ford F-150, 2023 Ford F-150, 2022 Ford F-150, 2021 Ford F-150. 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: built on or before 12 May 2022; built on or before 10 Jun 2026 — the build date is on the certification label in the driver’s door jamb.