You can read reviews about navteq gps systems on the following site: http://www.navteq.com/. They have great products.
NavTeq is a company that makes maps digitally. These maps are then used in GPS systems that go into vehicles. While it operates independently, NavTeq is a subsidiary company of Nokia.
Tom TOM Gps units use the NAVTEQ GPS maps.
You can typically download maps for your Garmin GPS from the Garmin website, where you can purchase and download them directly to your device using the Garmin Express software. Additionally, you may find maps available for purchase from third-party retailers or through online marketplaces like Amazon.
GPS systems tell it's customer where to go. Hopefully, this GPS system is reliable in it's ability to know exactly where it's customer is and where exactly it is going.
Navteq was created in 1985.
The population of Navteq is 4,400.
Navteq's population is 2,009.
Navteq's motto is 'The map the world turns to for direction'.
A digital map company
GPS satellites do not 'find' anything, that is not their purpose.
Contact the company that your GPS comes from. You can find their number listed on their website. They will be able to to tell you where to find the necessary items to update your GPS.