Ford bulletin 24E04
Ford filed this with NHTSA as a emissions communication dated May 5, 2026, received Nov 5, 2024, about the unknown or other — 2 documents under this number. It names 4 model years (2022–2023). 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 communicationThe affected vehicles have an on-board diagnostics (OBD) system that may falsely set the catalytic converter Diagnostic Trouble Codes (DTC) P0420 – Catalyst System Efficiency Below Threshold (Bank 1) and/or P0430 – Catalyst System Efficiency Below Threshold (Bank 2), causing the Malfunction Indicator Light (MIL) to illuminate even though a repair may be unnecessary
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| 24E04 | Emissions | May 5, 2026 | 11033581 | not yet checked |
| 24E04 | Emissions | Oct 4, 2024 | 11009829 | 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 24E04 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 24E04 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 24E04 cover?
The manufacturer filed it against 4 model years: 2023 Ford F-150, 2022 Ford F-150, 2023 Ford F-150 Lightning, 2022 Ford F-150 Lightning. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.