Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
Lets try this,
On the Nuvi go to settings, maps, map info.. Tell me what maps you see, and what map you have selected / checked currently?
Hello again,Did you still need help with this issue? If so, please respond so we can get started.Otherwise, if you want to cancel this support ticket, please respond and let us know so that we know to close this ticket out. Thank you,Dustin S.Senior Technician and Network Switching Systems Operator / Maintainer.