Here is the info from the email I received. I have not done this yet so I can't confirm that it works. If anyone tries this, let us know how it went. I will do likewise when I do.
Please follow these instructions to download the latest software update for your vehicle. You will first need to ensure that you have the Navigation Updater installed on your computer. To do this, visit
www.update.kia.com and click on the link called Navigation Updates. Once on that page, you will select the correct version for your computer (Mac or PC), and follow the instructions in the installation wizard. Once you have that done:
1. Open the Navigation Updater and log in using your Kia account (the same credentials used on
owners.kia.com or your Kia Access app) or log in as a guest.
2. If you logged in using your Kia account, your vehicle should automatically be registered. This screen will also give you the option of choosing where the file is downloaded, allow you to change the vehicle if needed, and then allow you to start the download.
3. When you choose where you would like the download to be saved, note that if you save it to a hard-disk, you will need to copy that file to an SD card or USB device in order to install the update.
4. Once completed, it's time to install the update in your vehicle. To do this, please ensure your vehicle is running, and do not remove the device until the update is completely finished. To see detailed instructions on how to install for your vehicle, check
https://update.kia.com/US/EN/updateGuide/03