Hello

is ther anybody that had this problem before ??

My Tiburon 2003 had door lock and original anti thief probleme.

when i hit bumpson the road my horn start , qucik sound like a loose signal but what can cause this, it seem that the anti thief systeme reconize an open door or something like that ... and with this problem the door lock activate alone and lock the doors ?



thank you

Sounds like a BCM (body control module issue) , take it to a dealer . It is not a simple self repair as your car is equipped with an immobiliser/alarm system .