Honda Civic 2003–2005 — technical service bulletin
Bulletin 1204 · NHTSA communication 10018100 · issued Dec 16, 2004
Technical service bulletin
communication type
Electrical System
component
2003–2005
model years
4
vehicle entries
Official summary
Horn inoperative. Dealer visit request. *tt
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.