Walked out to my 92 lumina this morning and i could hear the door locks rattllng from about twenty feet away. They seem to be working, just wont stay locked, the motors slowly unlock them. all of them were doing a variation of this - felt a bit like Close Encounters, but couldn't spot any space craft.

The battery was dead from all this, so I charged battery, car runs fine, and the locks and key work fine manually. Meanwhile I have wedged a pen top to hold the metal rocker switch in position to stop all the rattling and such.
What do you think? Some kind of master solenoid? Thanks.