Nevada Hwy 439
On a recent long trip, we traveled through Nevada and found the TomTom Navigation system in our Subaru could not route via Hwy 439. Our maps did show the northern part of this under the alternate name USA Parkway, but because the southern section of the highway was missing, it would not route via it, and I had to use Google Maps.
Upon return, I went to Mapshare and confirm that it appears there. So, I went to update the maps in our navigation system and it says there are no updates.