New here as well, my 2004 Sonata will lock without warning or with the slam of a door. Brought to dealer and of course it would not happen while in the shop. I reprogrammed the key fobs, and it worked for a while but has returned. my guess is that there mey be a grounding issue with the reciever but i don't know how to get to it.Hello new here, I have an 03 that has a prob. The power door lock system has a mind of its own. It will lock on its own and unlock several times in a row while in the car or outside or even driving down the road. Anyone else have this to happen? Thanks!