Here is a step by step:
1. Go to
https://jaguar.here.com
2. Log in with your account. You should already have this setup for live services and other services to work. This is what your dealer did for you when you took delivery of the car.
3. Click on MAPS & SERVICES link on the top navigation bar below the Leaper logo on top.
4. Look under MAPS. You would see a GET LATEST VERSION red button for your country map. Click on it.
5. You will be taken to the DOWNLOADS page. Click on the DOWNLOAD MAP button.
6. This will pop up and ask you to install a software called "Map Downloader". Install it. This tool assists in downloading the map to your USB stick.
7. After the install is complete, RETURN to the web page and click on DOWNLOAD MAP button again. This time it will launch the tool you just installed.
8. The tool will ask you to select your USB drive.
9. After the download completes, just go to your car and start the engine.
10. wait a bit and launch Navigation.
11. Plug in the USB stick into the car center console.
12. It should recognize the map update automatically and ask you if you want to install. Agree and press OK.
13. You can start driving at this point. Just make sure the engine is kept running.
14. In about 10 minutes the download will complete and Navigation will restart.
Enjoy!