One problem related to horn assembly has been reported for the 2013 Honda Civic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Honda Civic based on all problems reported for the 2013 Civic.
All 9th generation Civics are equiped with stock under powered horns. Saftey issue, since other cars won't hear it to avoid a collision. Some dealers offer a horn upgrade, but the labor would be costly due to the fact that the bumper cover has to be removed and re installed.