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Manufacturer communication · Service bulletin

Ford bulletin TSB 24-2404

What it saysSome 2021-2023 F-150 vehicles may experience an "Active Air Dam System Fault See Manual" warning message in the IPC and/or DTC C0604:00 stored in the PCM NHTSA’s full summary ↓

Ford filed this with NHTSA as a service bulletin dated Nov 26, 2024. It names 3 model years (2021–2023). 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.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication
Superseded. Ford replaced this bulletin with TSB 25-2155 dated Apr 26, 2025. Read that one first; this page stays as the record of what was filed under TSB 24-2404.

Some 2021-2023 F-150 vehicles may experience an "Active Air Dam System Fault See Manual" warning message in the IPC and/or DTC C0604:00 stored in the PCM

Trouble codes it names: C0604

Kind Service bulletin Manufacturer date Nov 26, 2024 Received by NHTSA Nov 26, 2024 Components — Superseded by TSB 25-2155 (Apr 26, 2025)

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
TSB 24-2404Service bulletinNov 26, 202411010798PDF, 113 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 them

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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A weekly email, sent only in a week when Ford files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.

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What owners reported

Source: NHTSA complaint database

Owners of the 3 model years this bulletin names have filed 2,642 complaints with NHTSA since 2015.

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.

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.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Ford TSB 24-2404 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 24-2404 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 24-2404 cover?

The manufacturer filed it against 3 model years: 2023 Ford F-150, 2022 Ford F-150, 2021 Ford F-150. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.