TSB A24040A — Honda Manufacturer communication
A24040A is a manufacturer communication on file with NHTSA for 5 Honda models, 2019–2025 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.
What the bulletin says. Service NewsDue to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Readiness status group. Due to some…
NHTSA's own summary of the document, quoted from the public manufacturer-communications file.
Vehicles and model years A24040A names
| Vehicle | Model years |
|---|---|
| Honda CR-V | 2019 |
| Honda Odyssey | 2019, 2021 |
| Honda Passport | 2019, 2020, 2021, 2025 |
| Honda Pilot | 2019, 2020, 2021 |
| Honda Ridgeline | 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
Every document filed under A24040A
| Document ID | Filed | Type |
|---|---|---|
| A24040A | May 1, 2024 | Manufacturer communication |
What A24040A covers
Engine — the component vocabulary NHTSA files this communication under.
Questions buyers ask
What is TSB A24040A?
A24040A is a manufacturer communication filed with NHTSA by Honda, covering 5 Honda models across the 2019–2025 model years. NHTSA's summary reads: Service NewsDue to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Honda’s Variable Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Readiness status group. Due to some…
Which vehicles does A24040A cover?
NHTSA's file names Honda CR-V (2019); Honda Odyssey (2019, 2021); Honda Passport (2019–2021, 2025); Honda Pilot (2019–2021); Honda Ridgeline (2019–2025). 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 A24040A a recall, and is the repair free?
No. A24040A 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 A24040A?
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 A24040A, 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 A24040A. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.