Lee has an Escort radar detector/GPS device and he can't update the maps. Leo says that many GPS companies are getting out of the business because every smartphone has GPS and a maps app. The phone is constantly up to date, while the GPS device isn't. Escort has also joined the iPhone generation by making their own app that has crowd sourced radar data like GPS. So GPS devices are rapidly becoming obsolete. There may be a software/maps update at the Escort Radar Forums. They'll at least have a conversation about it and that could point him in the right direction.
Scooter X in the chatroom came across this: "To order the latest v1.3 North American maps for your Passport iQ please call our sales experts at 1-800-964-3138. The price is $49.95 plus shipping and handling." That was back in 2012, though.