My son and I tried to used the Nav system in his Rubicon to find a ranch in Wyoming. We had a good street address, but the Nav took us to a private lane that was a dead end, not even on the right road!
We found the ranch the old fashioned way, with a map.
I have had similar problems in Wyoming with a Tom-Tom. It told me to turn five miles before the road where I needed to turn. Luckily there was no road of any kind where it wanted me to turn, so I ignored it.
I have learned to not trust any nav system of any kind. They just aren't as smart as some folks think they are!