Saftie

Taking off locks the car, that's fine.
But my 99 randomly unlocks and locks car while driving.
Would happen at any time and any road condition. It would unlock, stay unlocked and maybe lock again a long time later. So it not even a pattern.

Are there certain conditions under which this is supposed to happen (e.g. crash detection -even though it happens just going down road) or is my system buggy?
No lights on dash.

Nothing major but was wondering.