Ford over-the-air update DDM-26.21.5
What it says"Quality improvements include: -Prevents window bounce backs after using the one touch up feature" NHTSA’s full summary ↓
Ford filed this with NHTSA as an over-the-air update dated May 5, 2026, received Apr 6, 2026, about the structure — 4 documents under this number: DDM-26.21.5 Explorer, DDM-26.21.5 Expedition, DDM-26.21.5 F-150, DDM-26.21.5 SD. It names 17 model years (2024–2026). 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 communication"Quality improvements include: -Prevents window bounce backs after using the one touch up feature"
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| DDM-26.21.5 Explorer | Over-the-air update | May 5, 2026 | 11032708 | PDF, 21 KB |
| DDM-26.21.5 Expedition | Over-the-air update | Apr 13, 2026 | 11031641 | PDF, 21 KB |
| DDM-26.21.5 F-150 | Over-the-air update | Apr 9, 2026 | 11031371 | PDF, 21 KB |
| DDM-26.21.5 SD | Over-the-air update | Mar 30, 2026 | 11030727 | 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: 2024 Ford F-550 SD; 2025 Ford F-550 SD; 2026 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 14 model years this bulletin names have filed 648 complaints with NHTSA since 2015. 174 of them name Electrical System, Visibility/Wiper — 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.
Truck lost all electrical power while backing a trailer up. Engine died, no steering, no brakes, no power on dash, no emergence brakes, no power to door locks, no power to windows. If vehicle had been moving any faster no telling what could have been. Vehicle was towed to ford dealership and zero reasons for such a total loss of power.
2026 Ford F-250 Super Duty · Electrical System · filed with NHTSA Apr 6, 2026 · ODI 11729384
The trailer light control module is intermittently causing trailer light faults messages and signal failures. This is associated to recall 26C10. The software update doesn’t correct the problem. Ford does not have the hardware on hand to replace the failing part. This is a safety issue for us who are on the road towing travel trailers
2026 Ford F-350 Super Duty · Electrical System · filed with NHTSA Sep 16, 2026 · ODI 11764803
Front panel of the sunroof randomly shattered after closing the door to enter. The truck was in park. Ford says it must’ve been a rock or damage to it since glass doesn’t randomly shatter but there wasn’t any. Truck is less than a year old and 10,000 miles. Truck is currently at the dealership while I figure out options/warranties.
2024 Ford F-150 · Visibility/Wiper · filed with NHTSA Aug 20, 2025 · ODI 11682001
In depth: 2024 Ford F-150 electrical 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 structure
Source: same model, same component group40 other manufacturer communications filed against these Ford models under the same component group (structure), newest first. The eight newest are listed; the rest are on the Ford list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SSM 55279 | Service bulletin | Oct 24, 2026 | 2025-2027 Explorer/Police Interceptor Utility non-hybrid vehicles built on or after 05-Mar-2025 and 2025-2027 Aviator vehicles built on or a… |
| SSM 55275 | Service bulletin | Oct 23, 2026 | Some 2024 F-Super Duty vehicles equipped with a 5th wheel prep package may experience difficulty installing a 5th wheel hitch assembly to th… |
| TSB 26-2092 V2 | Service bulletin | Sep 22, 2026 | This article supersedes TSB 25-2466 to add Bronco Sport, Escape, Maverick and Corsair, as well as removing Expedition and Navigator. One tim… |
| RGTM-26.AF | Over-the-air update | Aug 27, 2026 | Quality improvements include: -Rear Gate latch calibration update to permit unlatching via the release button when the system has lost posit… |
| SSM 55107 | Service bulletin | Aug 20, 2026 | Some 2027 Expedition/Navigator vehicles equipped with power running boards may exhibit an intermittent condition where the power running boa… |
| SSM 55093 | Service bulletin | Aug 14, 2026 | Some 2021-2026 F-150 vehicles may exhibit a concern of the windshield wipers not parking in the correct position on the windshield and/or ov… |
| SSM 55069 | Service bulletin | Aug 5, 2026 | Some 2020-2025 Explorer vehicles equipped with a power roof opening panel may exhibit a sunshield with localized bunching or binding/inopera… |
| SSM 55060 | Service bulletin | Aug 4, 2026 | Some 2024-2026 Explorer vehicles built on or before 27-Feb-2026 and equipped with the panoramic glass roof may exhibit an uneven gap at the… |
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 DDM-26.21.5 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 DDM-26.21.5 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 DDM-26.21.5 cover?
The manufacturer filed it against 17 model years: 2026 Ford Expedition, 2025 Ford Explorer, 2026 Ford F-150, 2025 Ford F-150, 2024 Ford F-150, 2026 Ford F-250 Super Duty and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.