Lincoln bulletin 25B33
Lincoln filed this with NHTSA as a manufacturer communication dated Jun 1, 2026, received Oct 3, 2025, about the engine — 2 documents under this number. It names 5 model years (2023–2025). A manufacturer communication 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.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationCertain 2023-2025 Model Year Escape and Corsair, 2024-2025 Model Year Nautilus, 2025-2026 Model Year Bronco Sport and 2025 Model Year Maverick Vehicles Equipped with an Engine Block Heater System Block Heater Replacement
Documents filed under this number
| Document | Kind | Dated | NHTSA id |
|---|---|---|---|
| 25B33 | Other | Jun 1, 2026 | 11034207 |
| 25B33 | Other | Sep 11, 2025 | 11023853 |
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 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 Lincoln 25B33 a recall?
No. A manufacturer 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 25B33 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 25B33 cover?
The manufacturer filed it against 5 model years: 2025 Lincoln Corsair, 2024 Lincoln Corsair, 2023 Lincoln Corsair, 2025 Lincoln Nautilus, 2024 Lincoln Nautilus. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.