Honda Accord 2018–2022 — technical service bulletin
Bulletin A22-014 · NHTSA communication 10213582 · issued May 31, 2022
Technical service bulletin
communication type
Electrical System
component
2018–2022
model years
7
vehicle entries
Official summary
Service bulletin - Booming or rumbling through the speakers. ANC microphone insulating foam is damaged or folded over.
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.