Ford bulletin 23E01 S1
Ford filed this with NHTSA as a emissions communication dated Apr 26, 2026, received May 5, 2026, about the power train. It names 7 model years (2021–2023). A emissions communication 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 communicationEmission Recall 23E01 - Supplement #1 2021 Model Year F-150, 2022 Model Year Super Duty and 2023 Model Year F-650 / F-750 Truck Vehicles Equipped with Diesel Engines Powertrain Control Module Reprogramming
Document filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| 23E01 S1 | Emissions | Apr 26, 2026 | 11032238 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5; the full text comes from the manufacturer or a dealer. 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. Quote it 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: 2022 Ford F-550 SD; 2023 Ford F-650 SD; 2023 Ford F-750 SD.
A 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 23E01 S1 a recall?
No. A emissions communication 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 23E01 S1 repair free?
A emissions communication 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 23E01 S1 cover?
The manufacturer filed it against 7 model years: 2021 Ford F-150, 2022 Ford F-250 Super Duty, 2022 Ford F-350 Super Duty, 2022 Ford F-450 Super Duty, 2022 Ford F-550 SD, 2023 Ford F-650 SD and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.