TSB ECG-26.2.11.4 — Ford and Lincoln Software update
ECG-26.2.11.4 is a software update on file with NHTSA for 3 Ford and Lincoln models, 2021–2026 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: - Enhanced system performance, disk usage limits and memory monitoring -Enhanced charge data monitoring
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. ECG-26.2.11.4 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 ECG-26.2.11.4 names
| Vehicle | Model years |
|---|---|
| Ford Expedition | 2022, 2023, 2024, 2025, 2026 |
| Ford Mustang Mach-E | 2021, 2022 |
| Lincoln Navigator | 2022, 2023, 2024, 2025 |
Every document filed under ECG-26.2.11.4
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 |
|---|---|---|
| ECG-26.2.11.4 Expedition | May 28, 2026 | Software update |
| ECG-26.2.11.4 Navigator | May 28, 2026 | Software update |
| ECG-26.2.11.4 MachE | May 12, 2026 | Software update |
| ECG-26.2.11.4 Expedition | May 6, 2026 | Software update |
| ECG-26.2.11.4 Navigator | May 4, 2026 | Software update |
What ECG-26.2.11.4 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB ECG-26.2.11.4?
ECG-26.2.11.4 is a software update filed with NHTSA by Ford and Lincoln, covering 3 Ford and Lincoln models across the 2021–2026 model years. NHTSA's summary reads: Quality improvements include: - Enhanced system performance, disk usage limits and memory monitoring -Enhanced charge data monitoring
Which vehicles does ECG-26.2.11.4 cover?
NHTSA's file names Ford Expedition (2022–2026); Ford Mustang Mach-E (2021–2022); Lincoln Navigator (2022–2025). 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 ECG-26.2.11.4 a recall, and is the repair free?
ECG-26.2.11.4 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 ECG-26.2.11.4?
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 ECG-26.2.11.4, 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 ECG-26.2.11.4. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.