TSB 26E04 — Ford and Lincoln Emissions communication
26E04 is an emissions communication on file with NHTSA for 8 Ford and Lincoln models, 2021–2025 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. NEW VEHICLE DELIVERY HOLD - Emissions Recall 26E04 Certain 2021-2025 Model Year F-150, Maverick, Mustang, Ranger, Expedition, Bronco Sport, Explorer, Bronco, Navigator, and Aviator Vehicles Powertrain Control Module Software Update
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years 26E04 names
| Vehicle | Model years |
|---|---|
| Ford Bronco | 2021, 2022, 2023, 2024, 2025 |
| Ford Bronco Sport | 2021, 2022, 2023, 2024, 2025 |
| Ford Expedition | 2021, 2022, 2023, 2024, 2025 |
| Ford Explorer | 2021, 2022, 2023, 2024, 2025 |
| Ford F-150 | 2021, 2022, 2023, 2024, 2025 |
| Ford Mustang | 2021, 2022, 2023, 2024, 2025 |
| Ford Ranger | 2021, 2022, 2023, 2024, 2025 |
| Lincoln Navigator | 2021, 2022, 2023, 2024, 2025 |
Every document filed under 26E04
| Document ID | Filed | Type |
|---|---|---|
| 26E04 | July 9, 2026 | Emissions communication |
What 26E04 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB 26E04?
26E04 is an emissions communication filed with NHTSA by Ford and Lincoln, covering 8 Ford and Lincoln models across the 2021–2025 model years. NHTSA's summary reads: NEW VEHICLE DELIVERY HOLD - Emissions Recall 26E04 Certain 2021-2025 Model Year F-150, Maverick, Mustang, Ranger, Expedition, Bronco Sport, Explorer, Bronco, Navigator, and Aviator Vehicles Powertrain Control Module Software Update
Which vehicles does 26E04 cover?
NHTSA's file names Ford Bronco (2021–2025); Ford Bronco Sport (2021–2025); Ford Expedition (2021–2025); Ford Explorer (2021–2025); Ford F-150 (2021–2025); Ford Mustang (2021–2025); Ford Ranger (2021–2025); Lincoln Navigator (2021–2025). 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 26E04 a recall, and is the repair free?
No. 26E04 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.
How do I get the full text of 26E04?
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 26E04, 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 26E04. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.