Honda Accord 2018–2019 — technical service bulletin
Bulletin A21-078 · NHTSA communication 10201440 · issued Sep 7, 2021
Technical service bulletin
communication type
Engine and Engine Cooling
component
2018–2019
model years
2
vehicle entries
Official summary
Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored.
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.