all doors won't lock or unlock, with key fob or with the door button.

What is your question?

All doors stopped unlocking and locking at same time. None of the buttons on the doors work or the key fob work to unlock or lock doors. When using key fob you can hear something happening, but nothing engages.

What makes this problem better or worse?

same all the time

How long has your 2006 Buick Rendezvous had this problem?

for weeks