TSB DDM-26.21.5 — Ford and Lincoln Software update
DDM-26.21.5 is a software update on file with NHTSA for 6 Ford and Lincoln models, 2024–2026 model years, filed and re-filed as 5 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. "Quality improvements include: -Prevents window bounce backs after using the one touch up feature"
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. DDM-26.21.5 is filed as a software update, which unlike an ordinary bulletin can mean free or reimbursed work when a vehicle qualifies. Ask a dealer using the document ID below, and check open recalls separately at nhtsa.gov/recalls.
Vehicles and model years DDM-26.21.5 names
| Vehicle | Model years |
|---|---|
| Ford Expedition | 2026 |
| Ford Explorer | 2025 |
| Ford F-150 | 2024, 2025, 2026 |
| Ford F-250 | 2024, 2025, 2026 |
| Ford F-350 | 2024, 2025, 2026 |
| Lincoln Navigator | 2025 |
Every document filed under DDM-26.21.5
Manufacturers re-issue a bulletin as the repair changes, and file separate copies for technicians and for owners. All of them carry the same number.
| Document ID | Filed | Type |
|---|---|---|
| DDM-26.21.5 Explorer | May 5, 2026 | Software update |
| DDM-26.21.5 Expedition | April 13, 2026 | Software update |
| DDM-26.21.5 Navigator | April 13, 2026 | Software update |
| DDM-26.21.5 F-150 | April 9, 2026 | Software update |
| DDM-26.21.5 SD | March 30, 2026 | Software update |
What DDM-26.21.5 covers
Body & structure, Visibility & wipers, Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB DDM-26.21.5?
DDM-26.21.5 is a software update filed with NHTSA by Ford and Lincoln, covering 6 Ford and Lincoln models across the 2024–2026 model years. NHTSA's summary reads: "Quality improvements include: -Prevents window bounce backs after using the one touch up feature"
Which vehicles does DDM-26.21.5 cover?
NHTSA's file names Ford Expedition (2026); Ford Explorer (2025); Ford F-150 (2024–2026); Ford F-250 (2024–2026); Ford F-350 (2024–2026); Lincoln Navigator (2025). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.
Is TSB DDM-26.21.5 a recall, and is the repair free?
DDM-26.21.5 is filed as a software update, not a recall — but this is the kind of communication that can mean free or reimbursed work if your VIN qualifies. Take the number to a dealer and ask. Recalls are separate and always free; check yours by VIN at nhtsa.gov/recalls.
How do I get the full text of DDM-26.21.5?
Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under DDM-26.21.5, its date, and NHTSA's own summary from the public file.
Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under DDM-26.21.5. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.