TSB A25-061 — Honda Service bulletin
A25-061 is a service bulletin on file with NHTSA for the Honda Odyssey, 2013–2017 model years, filed and re-filed as 3 documents. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Service Bulletin - The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected,…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years A25-061 names
Every document filed under A25-061
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 |
|---|---|---|
| A25-061 | August 29, 2025 | Service bulletin |
| A25-061 | July 18, 2025 | Service bulletin |
| A25-061 | June 17, 2025 | Service bulletin |
What A25-061 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB A25-061?
A25-061 is a service bulletin filed with NHTSA by Honda, covering the Honda Odyssey across the 2013–2017 model years. NHTSA's summary reads: Service Bulletin - The piston ring function deteriorates due to ring low wear toughness and sticking from sludge. Oil adheres to the spark plug leading to carbon fouling and misfire. This can set DTCs P0301 No. 1 cylinder misfire detected, P0302 No. 2 cylinder misfire detected,…
Which vehicles does A25-061 cover?
NHTSA's file names Honda Odyssey (2013–2017). 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 A25-061 a recall, and is the repair free?
No. A25-061 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 A25-061?
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 A25-061, 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 A25-061. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.