Forgive me if I understood your problem wrongly. While the HD has built-in GPS it is not supplied with any software or app associated with it for navigating or even for displaying coordinates or compass navigation.
Once you download the Google Maps (which also supports, for some countries the street map display) application onto your device, it will make use of the GPS and show you your position, with moving map display as you drive, quite smoothly and accurately. It will also show your approximate position indoors without GPS (using A-GPS and the cell site ID supporting LBS).
For point to point navigation and voice prompts guess one has to use 3rd party app like Garmin XT, TomTom; but I have not used these.