Lincoln over-the-air update DDM-26.21.5
What it saysQuality improvements include: -Prevents window bounce backs after using the one touch up feature NHTSA’s full summary ↓
Lincoln filed this with NHTSA as an over-the-air update dated May 14, 2026, received Apr 28, 2026, about the visibility/wiper — 3 documents under this number: DDM-26.21.5 Nautilus, DDM-26.21.5 Aviator, DDM-26.21.5 Navigator. It names 5 model years (2024–2026). 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 communicationQuality improvements include: -Prevents window bounce backs after using the one touch up feature
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| DDM-26.21.5 Nautilus | Over-the-air update | May 14, 2026 | 11032938 | PDF, 21 KB |
| DDM-26.21.5 Aviator | Over-the-air update | May 5, 2026 | 11032707 | PDF, 21 KB |
| DDM-26.21.5 Navigator | Over-the-air update | Apr 13, 2026 | 11031642 | PDF, 21 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 themA 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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What owners reported
Source: NHTSA complaint databaseOwners of the 5 model years this bulletin names have filed 99 complaints with NHTSA since 2015. 12 of them name Visibility/Wiper — 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 2025 Lincoln Aviator. The contact stated that the front passenger's side window failed to roll up or down as needed. The contact stated that the front driver's side window motor was previously replaced due to the same failure. The vehicle was taken to the dealer; however, the vehicle was not yet diagnosed or repaired.
2025 Lincoln Aviator · Visibility/Wiper · filed with NHTSA Aug 18, 2026 · ODI 11757628
The door jam and hatchback seals are letting dust and emission fumes inside the vehicle. When driving down a dirt road the seats are covered with dust. The dealership says that the seals are properly installed they said to the cabin fan on high to pressurize the vehicle which has not helped.
2024 Lincoln Nautilus · Structure · filed with NHTSA Mar 14, 2026 · ODI 11724356
The contact owns a 2025 Lincoln Nautilus. The contact stated that while driving 50 MPH during 105-degree weather, the contact became aware of a micro-fracture on the front windshield from the front driver's side over to the passenger’s side.
2025 Lincoln Nautilus · Visibility/Wiper · filed with NHTSA Aug 5, 2026 · ODI 11755029
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 visibility/wiper
Source: same model, same component group25 other manufacturer communications filed against these Lincoln models under the same component group (visibility/wiper), newest first. The eight newest are listed; the rest are on the Lincoln list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB 26-2358 V2 | Service bulletin | Sep 11, 2026 | Some of the vehicles listed in the Model statement above equipped with one-touch up/down windows may exhibit a condition where a window does… |
| 26U03 | Other | Jun 15, 2026 | Recommended Repair Prior to Sale Update Prior to Sale 26U03 Certain 2025-2026 Model Year Expedition and Navigator Vehicles Driver Door Modul… |
| 26N09 | Other | Jun 11, 2026 | Customer Satisfaction Program 26N09 Certain 2020 Model Year Escape, 2020-2021 Corsair, 2020-2021 Aviator, and 2020- 2021 and 2023 Explorer V… |
| SSM 54910 | Service bulletin | Jun 9, 2026 | Some 2025-2026 Expedition/Navigator vehicles equipped with one-touch up/down front windows may exhibit a condition where a front window does… |
| SSM 54826 | Service bulletin | May 15, 2026 | Some 2025-2026 Expedition/Navigator vehicles equipped with one-touch up/down front windows may exhibit a condition where a front window does… |
| PDM -26.21.5 | Over-the-air update | Apr 17, 2026 | Quality improvements include: -Prevents window bounce backs after using the one touch up feature |
| SSM 54740 | Service bulletin | Apr 13, 2026 | Some 2025-2026 Expedition/Navigator vehicles equipped with power folding mirrors may not have the ability to deactivate the auto-fold mirror… |
| ITRM-26.A04 | Over-the-air update | Apr 10, 2026 | 26C10 Recall remedy -Addresses instances where the trailer lights and trailer brakes may not function |
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.
Common questions
Source: NHTSA, 49 CFR 579.5Is Lincoln DDM-26.21.5 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 DDM-26.21.5 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 DDM-26.21.5 cover?
The manufacturer filed it against 5 model years: 2025 Lincoln Aviator, 2025 Lincoln Nautilus, 2024 Lincoln Nautilus, 2026 Lincoln Navigator, 2025 Lincoln Navigator. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.