Honda Accord Hybrid 2017 — technical service bulletin
Bulletin A25-040 · NHTSA communication 11020082 · issued Jun 25, 2025
Technical service bulletin
communication type
Fuel/propulsion System
component
2017
model years
1
vehicle entries
Official summary
Service Bulletin - The MIL comes on with DTC P0139 (secondary heated oxygen sensor slow response) due to the ECM/PCM misinterpreting the secondary heated oxygen sensor output and sets DTC P0139.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.