Hi Bill,
Welcome to Jaguar Owners Club.
You could try
https://www.jaguar.co.uk
Found this as well hope it helps.
Kind Regards,
Julie
How do I update my sat nav on my Jaguar XF?
TOUCH. Download the InControl Touch Map Updater to your PC or Mac using the link provided, and it will advise you if a map update is available for your vehicle. Purchase and download the relevant map, then transfer it to the vehicle's SD card to update your InControl Navigation system.