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Manufacturer communication · Service bulletin

Ford bulletin SSM 53972

What it saysSome 2023-2025 F-Super Duty vehicles equipped with a 6.7L engine may require replacement of the air conditioning compressor due to various concerns. NHTSA’s full summary ↓

Ford filed this with NHTSA as a service bulletin dated Jun 25, 2025, received Jul 2, 2025, about the power train. It names 12 model years (2023–2025). 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
Engine 6.7L “Some 2023-2025 F-Super Duty vehicles equipped with a 6.7L engine may require replacement of the air conditioning compressor due to various concerns.”

What it applies to, as NHTSA’s summary states it — build dates and equipment as the manufacturer filed them. The dealer checks the VIN and the build date on the door jamb; a vehicle outside the window is not covered by this bulletin.

Some 2023-2025 F-Super Duty vehicles equipped with a 6.7L engine may require replacement of the air conditioning compressor due to various concerns. Workshop Manual (WSM), Section 412-00 has been updated with improved removal and installation service procedure steps.

Kind Service bulletin Manufacturer date Jun 25, 2025 Received by NHTSA Jul 2, 2025 Components Power Train, Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
SSM 53972Service bulletinJun 25, 202511020042PDF, 66 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

Also filed against model years this site has no page for: 2023 Ford F-550 SD; 2024 Ford F-550 SD; 2025 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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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.

What owners reported

Source: NHTSA complaint database

Owners of the 9 model years this bulletin names have filed 217 complaints with NHTSA since 2015. 51 of them name Power Train, Engine — 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.

The contact owns a 2024 Ford F-350. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted. There was no warning light illuminated. The vehicle was taken to the dealer but was not diagnosed or repaired. The dealer informed the contact that a software update had been completed on the TCM.

2024 Ford F-350 Super Duty · Power Train · filed with NHTSA Jul 16, 2025 · ODI 11674055

Less than 4000 miles- first transmission failed while pulling a large trailer- ford replaced the transmission and the new transmission, only 200 miles later did the same thing when pulling a trailer, up hill. It throws the transmission into 10th gear and you loose all power, Check engine light comes on and it slams back into 4th gear.

2025 Ford F-450 Super Duty · Power Train · filed with NHTSA Sep 3, 2025 · ODI 11684755

The contact owned a 2024 Ford F-450 SD. The contact stated that while his fiancée was driving with cruise control set to 57 MPH, there was an abnormally strong smoky odor inside the cabin of the vehicle. No warning light was illuminated. The driver pulled over to the side of the road and there were flames coming from the engine bay.

2024 Ford F-450 Super Duty · Engine · filed with NHTSA Aug 18, 2026 · ODI 11757734

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 power train

Source: same model, same component group

61 other manufacturer communications filed against these Ford models under the same component group (power train), newest first. The eight newest are listed; the rest are on the Ford list.

NumberKindDatedNHTSA’s summary
SSM 55218Service bulletinOct 6, 2026For 20202026 vehicles equipped with the 10R140 transmission, a new Transmission Clutch Circuit Leak Test has been introduced in the Ford…
TSB 26-2088 v2Service bulletinOct 1, 2026This bulletin supersedes 24-2249. Reason for update: update the claim quantity of the torque converter nuts, part number and claim quantity…
TSB 26-2406Service bulletinSep 5, 2026Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions:  Poor shift quality  Illumi…
TSB 26-2252Service bulletinSep 5, 2026Some of the vehicles listed in the Model statement above may exhibit at least one of the following conditions:  Poor shift quality  Illumi…
SSM 55098Service bulletinAug 18, 2026Some 2013-2016 Super Duty vehicles equipped with a 6.7L diesel engine and 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may…
SSM 54900Service bulletinJun 4, 2026Some 2023-2026 F-Super Duty vehicles equipped with a 10R100 or 10R140 transmission may exhibit an intermittent failure to engage forward or…
TSB 26-2263Service bulletinMay 30, 2026This bulletin supersedes 26-2112. Reason For Update: add 2026 model year vehicles, update LV fluid XT-10-QLVC and CXT-10-LV6 description to…
TSB 26-2251Service bulletinMay 28, 2026This article supersedes TSB 25-2545. Reason for update: To correct the current Pinpoint Test description. Some of the vehicles listed in 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.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Ford SSM 53972 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 SSM 53972 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 SSM 53972 cover?

The manufacturer filed it against 12 model years: 2025 Ford F-250 Super Duty, 2024 Ford F-250 Super Duty, 2023 Ford F-250 Super Duty, 2025 Ford F-350 Super Duty, 2024 Ford F-350 Super Duty, 2023 Ford F-350 Super Duty and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.