Door lock/unlock out of sync?

[wasbaggedonce]

Whenever I use my fob to either lock or unlock my doors, the passenger front door is always out of sync with the others. I'll hit the unlock button and I can hear the delay. It's not milliseconds either. It's like a full 1.5 second delay. The front driver side door and both back doors all unlock at the exact same moment together, then the front passenger unlocks by itself shortly after. Maybe I'm just being picky, but it's annoying to me. Is there anyway to reset this or would I have to replace a motor or something?