TSB HVAC-25.26 — Ford Software update
HVAC-25.26 is a software update on file with NHTSA for the Ford Mustang Mach-E, 2022–2023 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Quality improvements include: -Calibration update for the Heating Ventilating and Air Conditioning module to prevent window fogging in cold weather
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. HVAC-25.26 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 HVAC-25.26 names
| Vehicle | Model years |
|---|---|
| Ford Mustang Mach-E | 2022, 2023 |
Every document filed under HVAC-25.26
| Document ID | Filed | Type |
|---|---|---|
| HVAC-25.26 MachE | October 1, 2025 | Software update |
What HVAC-25.26 covers
Engine, Visibility & wipers — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB HVAC-25.26?
HVAC-25.26 is a software update filed with NHTSA by Ford, covering the Ford Mustang Mach-E across the 2022–2023 model years. NHTSA's summary reads: Quality improvements include: -Calibration update for the Heating Ventilating and Air Conditioning module to prevent window fogging in cold weather
Which vehicles does HVAC-25.26 cover?
NHTSA's file names Ford Mustang Mach-E (2022–2023). 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 HVAC-25.26 a recall, and is the repair free?
HVAC-25.26 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 HVAC-25.26?
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 HVAC-25.26, 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 HVAC-25.26. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.