TSB A23-100 — Honda Service bulletin
A23-100 is a service bulletin on file with NHTSA for the Honda HR-V, 2021–2022 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. Service Bulletin - During engine start in cold conditions, a miscalculation in the PCM causes the air-fuel ratio to exceed DTC P2DE1 rich criteria.
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years A23-100 names
| Vehicle | Model years |
|---|---|
| Honda HR-V | 2021, 2022 |
Every document filed under A23-100
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 |
|---|---|---|
| A23-100 | March 5, 2024 | Service bulletin |
| A23-100 | December 8, 2023 | Service bulletin |
What A23-100 covers
Engine, Fuel system — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB A23-100?
A23-100 is a service bulletin filed with NHTSA by Honda, covering the Honda HR-V across the 2021–2022 model years. NHTSA's summary reads: Service Bulletin - During engine start in cold conditions, a miscalculation in the PCM causes the air-fuel ratio to exceed DTC P2DE1 rich criteria.
Which vehicles does A23-100 cover?
NHTSA's file names Honda HR-V (2021–2022). 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 A23-100 a recall, and is the repair free?
No. A23-100 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 A23-100?
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 A23-100, 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 A23-100. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.