TSB PF-26-01 — Mazda Manufacturer communication
PF-26-01 is a manufacturer communication on file with NHTSA for 3 Mazda models, 2018–2025 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. The coolant control valve updated part is now available and supersedes PYFD-15-16ZA. As a result, PYFD-15-16ZA is no longer available. PW5S-15-16Z is supplied with a dummy plug pre-installed. Critical Installation Requirement: When replacing PW5S-15-16Z, the Powertrain Control…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years PF-26-01 names
| Vehicle | Model years |
|---|---|
| Mazda CX-5 | 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
| Mazda Mazda3 | 2019 |
| Mazda Mazda6 | 2018, 2019, 2020, 2021 |
Every document filed under PF-26-01
| Document ID | Filed | Type |
|---|---|---|
| PF-26-01 | February 11, 2026 | Manufacturer communication |
What PF-26-01 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB PF-26-01?
PF-26-01 is a manufacturer communication filed with NHTSA by Mazda, covering 3 Mazda models across the 2018–2025 model years. NHTSA's summary reads: The coolant control valve updated part is now available and supersedes PYFD-15-16ZA. As a result, PYFD-15-16ZA is no longer available. PW5S-15-16Z is supplied with a dummy plug pre-installed. Critical Installation Requirement: When replacing PW5S-15-16Z, the Powertrain Control…
Which vehicles does PF-26-01 cover?
NHTSA's file names Mazda CX-5 (2018–2025); Mazda Mazda3 (2019); Mazda Mazda6 (2018–2021). 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 PF-26-01 a recall, and is the repair free?
No. PF-26-01 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 PF-26-01?
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 PF-26-01, 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 PF-26-01. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.