Recently changed the battery in my 2014 Honda Pilot. Resulting from that, I'm instructed on the nav screen to enter the PIN security number to reactivate radio, GPS, etc. Where do I find that pin number to enter?

If you dont have card that is in your owmers manual when you buy the vehical then id say dealership

Your PIN number should be located on the side of your glove compartment closest to the radio when you open it. I had to change my battery as well and that's where I was shown the number.

Patrick is right. Dealership.

Call the dealership, after thoroughly googling Honda message boards.