Ford bulletin TSB 25-2621
What it saysSome vehicles listed in the Model statement above may exhibit a no crank/no start condition where the customer cannot start their vehicle. NHTSA’s full summary ↓
Ford filed this with NHTSA as a service bulletin dated Feb 10, 2026, received Feb 17, 2026, about the electrical system. It names 26 model years across Ford and Lincoln (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.
One page for every brand it was filed under. Each brand’s bulletins: Ford · Lincoln.
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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.
Some vehicles listed in the Model statement above may exhibit a no crank/no start condition where the customer cannot start their vehicle. The vehicle may also exhibit a "No Key Detected" message displayed on the instrument panel cluster (IPC), and no key fob works in the back up slot. The remote keyless entry (RKE) functionality will work to lock/unlock the vehicle.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB 25-2621 | Service bulletin | Feb 10, 2026 | 11028830 | PDF, 135 KB |
What the document itself lists
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 252621A | 2024-2025 F-150/Nautilus/F-Super Duty/Ranger: Run BCM Hardware Test - Pass – Repair… | 0.3 hrs |
| 252621B | 2024-2025 F-150/Nautilus/F-Super Duty/Ranger: Run BCM Hardware Test - Fail, Replace BCM | 1 hrs |
| 252621C | 2024-2025 F-150/Nautilus/F-Super Duty/Ranger: Reprogram Both Key Fobs – Pass | 0.3 hrs |
| 252621D | 2024-2025 F-150/Nautilus/F-Super Duty/Ranger: Reprogram Both key Fobs – Fail… | 1 hrs |
| 252621E | 2024-2025 Mustang, 2025 Aviator/Explorer: Run Run BCM Hardware Test - Pass – Repair… | 0.3 hrs |
| 252621F | 2024-2025 Mustang, 2025 Aviator/Explorer: Run BCM Hardware Test - Fail, Replace BCM | 1.2 hrs |
| 252621G | 2024-2025 Mustang, 2025 Aviator/Explorer: Reprogram Both Key Fobs – Pass | 0.3 hrs |
| 252621H | 2024-2025 Mustang, 2025 Aviator/Explorer: Reprogram Both key Fobs – Fail, Replace BCM | 1.1 hrs |
| 252621J | 2025 Expedition/Navigator: Run BCM Hardware Test - Pass – Repair No Key Detected… | 0.3 hrs |
| 252621K | 2025 Expedition/Navigator: Run BCM Hardware Test - Fail, Replace BCM | 1.1 hrs |
| 252621L | 2025 Expedition/Navigator: Reprogram Both Key Fobs – Pass | 0.3 hrs |
| 252621M | 2025 Expedition/Navigator: Reprogram Both key Fobs – Fail, Replace BCM | 1 hrs |
| 252621N | 2024-2025 Bronco: Run BCM Hardware Test - Pass – Repair No Key Detected Outside Of… | 0.3 hrs |
| 252621P | 2024-2025 Bronco: Run BCM Hardware Test - Fail, Replace BCM | 0.8 hrs |
| 252621Q | 2024-2025 Bronco: Reprogram Both Key FOB’s – Pass | 0.3 hrs |
| 252621R | 2024-2025 Bronco: Reprogram Both key FOB’s – Fail, Replace BCM | 0.8 hrs |
Read by machine from the document NHTSA serves (2 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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
Find the body for the 2025 Bronco →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Model years it names
Source: as the manufacturer filed themFord 22 model years
Also 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.
Lincoln 4 model years
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 23 model years this bulletin names have filed 1,211 complaints with NHTSA since 2015. 585 of them name Electrical System, Power Train, Structure — 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 · ODI 11674055
The contact owns a 2024 Ford Mustang. The contact received notification of NHTSA Campaign Number: 24V802000 (Electrical System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue.
2024 Ford Mustang · Electrical System · filed with NHTSA Jan 21, 2025 · ODI 11637439
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 · ODI 11684755
In depth: 2024 Ford F-150 electrical problems → · 2024 Ford F-150 transmission and drivetrain problems →
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 electrical system
Source: same model, same component group499 other manufacturer communications filed against these Ford models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 55262 | Service bulletin | Oct 22, 2026 | Some 2027 Expedition/Navigator vehicles equipped with power running boards built on or before 13-Sep-2026 may exhibit an intermittent condit… |
| 26-2431 v2 | Service bulletin | Oct 22, 2026 | This bulletin supersedes 26-2226. Reason for update: update the Service procedure for 2021-2022 F-150 3.5L EcoBoost vehicles with new Ford D… |
| TSB 26-2439 | Service bulletin | Oct 21, 2026 | Some of the vehicles listed in the Model statement above may exhibit the HVAC (heating, ventilation, and air conditioning) and radio system… |
| SSM 55258 | Service bulletin | Oct 19, 2026 | Some 2025-2027 Expedition/Navigator vehicles may exhibit an intermittent electronic static/buzzing/screeching/humming noise from the front a… |
| SSM 55256 | Service bulletin | Oct 16, 2026 | Some 2024-2026 Nautilus and 2025-2027 Explorer/Aviator vehicles equipped with power folding mirrors may exhibit concerns with the auto foldi… |
| SSM 55247 | Service bulletin | Oct 15, 2026 | Some 2024-2026 Nautilus vehicles may experience an "Advance Front Lighting Features Temporarily Unavailable" message with diagnostic trouble… |
| SSM 55255 | Service bulletin | Oct 15, 2026 | Some 2024-2026 F-Super Duty vehicles equipped with a 360-degree camera may exhibit a distorted or corrupted 360-degree camera image in the c… |
| TSB 26-2442 | Service bulletin | Oct 14, 2026 | This bulletin supersedes 26-2297. Reason for update: Add 2022-2025 Transit vehicles. Some of the vehicles listed in the model statement abov… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Ford and Lincoln, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford TSB 25-2621 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 25-2621 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 25-2621 cover?
The manufacturer filed it against 26 model years across 2 brands (Ford and Lincoln): 2025 Ford Bronco, 2024 Ford Bronco, 2025 Ford Expedition, 2025 Ford Explorer, 2025 Ford F-150, 2024 Ford F-150 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: 2025 Explorer/Aviator: built on or after 2 Feb 2025; 2025 Nautilus: built on or after 17 Feb 2025; 2025 F-150: built on or after 16 Jul 2025 — the build date is on the certification label in the driver’s door jamb.