One problem related to horn assembly has been reported for the 2004 Chevrolet Aveo. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Aveo based on all problems reported for the 2004 Aveo.
Horn malfunction while vehicle was parked and ignition was off. Had to pull fuse associated with horn/rear-defroster to stop horn from going off.