TSB A23-009 — Honda Service bulletin
A23-009 is a service bulletin on file with NHTSA for 3 Honda models, 2016–2021 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the customer can immediately restart the vehicle by selecting Park…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years A23-009 names
| Vehicle | Model years |
|---|---|
| Honda Passport | 2019, 2020, 2021 |
| Honda Pilot | 2016, 2017, 2018, 2019, 2020, 2021 |
| Honda Ridgeline | 2020, 2021 |
Every document filed under A23-009
| Document ID | Filed | Type |
|---|---|---|
| A23-009 | July 7, 2025 | Service bulletin |
What A23-009 covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB A23-009?
A23-009 is a service bulletin filed with NHTSA by Honda, covering 3 Honda models across the 2016–2021 model years. NHTSA's summary reads: Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop, the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. Typically, the customer can immediately restart the vehicle by selecting Park…
Which vehicles does A23-009 cover?
NHTSA's file names Honda Passport (2019–2021); Honda Pilot (2016–2021); Honda Ridgeline (2020–2021). 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 A23-009 a recall, and is the repair free?
No. A23-009 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 A23-009?
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 A23-009, 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 A23-009. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.