2005 Chrysler Pacifica electronics quit

The electronics randomly quit working on my car for no apparent reason. The doors won’t unlock without putting the key into the lock. The gauges are dark, etc. The car will start. It usually only lasts a few minutes and fixes itself. It normally happens a time or two in the winter months when it’s wet, but recently happened when we were on vacation in the desert. The dealer and my mechanic friend can find nothing wrong. What can it be?

Condition of battery or its connections? That’s where to start. allpar.com is devoted to Chrysler products past and present and has a minivans/Pacifica forum. I have found it helpful and you might, too. Good luck.