One problem related to horn assembly has been reported for the 2002 Mercury Sable. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mercury Sable based on all problems reported for the 2002 Sable.
Doors lock and unlock while driving. Horn alarm goes off when car is parked. Warning light for open doors when doors are closed. Doors unlock and interior lights come on.