Ford bulletin ITRM-26.B04
Ford filed this with NHTSA as a over-the-air update dated Jun 12, 2026, received May 1, 2026, about the electrical system — 3 documents under this number: ITRM-26. B04 F-150 Lightni, ITRM-26. B04 Expedition, ITRM-26. B04 F-150. It names 7 model years (2021–2024). A 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communication26C10 Recall remedy -Addresses instances where the trailer lights and trailer brakes may not function
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| ITRM-26. B04 F-150 Lightni | Over-the-air update | Jun 12, 2026 | 11033812 | PDF, 22 KB |
| ITRM-26. B04 Expedition | Over-the-air update | Jun 11, 2026 | 11033811 | PDF, 22 KB |
| ITRM-26. B04 F-150 | Over-the-air update | Apr 29, 2026 | 11031913 | not yet checked |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Ford ITRM-26.B04 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 ITRM-26.B04 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 ITRM-26.B04 cover?
The manufacturer filed it against 7 model years: 2024 Ford Expedition, 2023 Ford Expedition, 2022 Ford Expedition, 2023 Ford F-150, 2022 Ford F-150, 2021 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.