Honda Civic 2009–2010 — technical service bulletin
Bulletin SB-11-021 · NHTSA communication 10039525 · issued Jul 19, 2011
Technical service bulletin
communication type
Electrical System
component
2009–2010
model years
2
vehicle entries
Official summary
Honda: the horn intermittently sounds when driving or while turning the steering wheel. There is metal contamination inside the horn, that conducts electricity and sounds the horn. *rm
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.