TSB TCU-25.2.5.9.1 — Ford Software update
TCU-25.2.5.9.1 is a software update on file with NHTSA for 3 Ford models, 2023–2024 model years, filed and re-filed as 2 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. "Quality improvements include: -Prevents Telematics Control Unit memory from going over 70%. Ensuring it has enough space to install the latest Over The Air updates"
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. TCU-25.2.5.9.1 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 TCU-25.2.5.9.1 names
| Vehicle | Model years |
|---|---|
| Ford F-150 | 2024 |
| Ford F-250 | 2023, 2024 |
| Ford F-350 | 2023, 2024 |
Every document filed under TCU-25.2.5.9.1
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 |
|---|---|---|
| TCU-25.2.5.9.1 SuperDuty | August 15, 2025 | Software update |
| TCU-25.2.5.9.1 F-150 | August 7, 2025 | Software update |
What TCU-25.2.5.9.1 covers
Electrical — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB TCU-25.2.5.9.1?
TCU-25.2.5.9.1 is a software update filed with NHTSA by Ford, covering 3 Ford models across the 2023–2024 model years. NHTSA's summary reads: "Quality improvements include: -Prevents Telematics Control Unit memory from going over 70%. Ensuring it has enough space to install the latest Over The Air updates"
Which vehicles does TCU-25.2.5.9.1 cover?
NHTSA's file names Ford F-150 (2024); Ford F-250 (2023–2024); Ford F-350 (2023–2024). 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 TCU-25.2.5.9.1 a recall, and is the repair free?
TCU-25.2.5.9.1 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 TCU-25.2.5.9.1?
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 TCU-25.2.5.9.1, 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 TCU-25.2.5.9.1. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.