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Manufacturer communication · Over-the-air update

Lincoln over-the-air update ABS-25.7.4

What it says"25S77 Recall remedy: -Addresses a potential loss of brake boost while driving. NHTSA’s full summary ↓

Lincoln filed this with NHTSA as an over-the-air update dated Aug 1, 2025, received Aug 21, 2025, about the service brakes — 1 document under this number: ABS-25.7.4 Navigator. It names 1 model year (2025). An 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.

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What the bulletin says

Source: NHTSA's summary of the manufacturer's communication

"25S77 Recall remedy: -Addresses a potential loss of brake boost while driving. Hydraulic braking assist will still be available"

Manufacturer campaign id ABS-25.7.4 Kind Over-the-air update Manufacturer date Aug 1, 2025 Received by NHTSA Aug 21, 2025 Components Service Brakes

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
ABS-25.7.4 NavigatorOver-the-air updateAug 1, 202511022060PDF, 20 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.

Email me new Lincoln bulletins for the Navigator

A weekly email, sent only in a week when Lincoln 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 1 model year this bulletin names have filed 13 complaints with NHTSA since 2015. 4 of them name Service Brakes — 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.

Brakes failed while driving. I could not stop. Thank goodness I didn’t run anyone over. First time it happened I had it towed to the dealership- they said they fixed the problem.

2025 Lincoln Navigator · Service Brakes · filed with NHTSA Oct 8, 2026 · ODI 11769817

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 service brakes

Source: same model, same component group

5 other manufacturer communications filed against the Lincoln Navigator under the same component group (service brakes), newest first.

NumberKindDatedNHTSA’s summary
ITRM-26.B04Over-the-air updateJun 6, 202626C10 Recall remedy -Addresses instances where the trailer lights and trailer brakes may not function
SSM 54733Service bulletinApr 9, 2026Some 2025-2026 Bronco/Expedition/Navigator/F-150/Ranger vehicles may exhibit a "Check Brake System" message in the instrument panel cluster…
ABS-25.B11Over-the-air updateJan 27, 2026"25S77 Recall remedy: -Addresses a potential loss of brake boost while driving. Hydraulic braking will still be available"
SSM 53874Service bulletinJun 5, 2025Some 2025 Expedition/Navigator vehicles may exhibit an illuminated anti-lock brake system (ABS) warning indicator with diagnostic trouble co…
SSM 52881Service bulletinSep 12, 20242018-2022 Expedition/Navigator  "Park Brake Limited Function Service Required" Message In The IPC

Quote the number at the service desk. It is what the dealer’s system is keyed on.

Every manufacturer communication NHTSA holds for Lincoln, by the number printed on the letter.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Lincoln ABS-25.7.4 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 ABS-25.7.4 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 ABS-25.7.4 cover?

The manufacturer filed it against 1 model year: 2025 Lincoln Navigator. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.