TSB PT-24.21.6 — Ford Software update
PT-24.21.6 is a software update on file with NHTSA for the Ford F-150, 2022 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: AC compressor speed control and timer updates for a better climate system performance Addresses false cylinder misfire DTC"
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Worth checking your VIN against. PT-24.21.6 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 PT-24.21.6 names
| Vehicle | Model years |
|---|---|
| Ford F-150 | 2022 |
Every document filed under PT-24.21.6
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 |
|---|---|---|
| 24-OTA PT-24.21.6 F-150 | January 22, 2025 | Software update |
| 24-OTA PT-24.21.6 F-150 | January 22, 2025 | Software update |
Questions buyers ask
What is TSB PT-24.21.6?
PT-24.21.6 is a software update filed with NHTSA by Ford, covering the Ford F-150 across the 2022 model years. NHTSA's summary reads: "Quality improvements include: AC compressor speed control and timer updates for a better climate system performance Addresses false cylinder misfire DTC"
Which vehicles does PT-24.21.6 cover?
NHTSA's file names Ford F-150 (2022). 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 PT-24.21.6 a recall, and is the repair free?
PT-24.21.6 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 PT-24.21.6?
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 PT-24.21.6, 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 PT-24.21.6. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.