Hello Rod, congratulations on your purchase.You bought a good car!
Unfortunately, "UVO" means different things to different owners, depending on the model and trim package you purchased. Kia has engaged in what I consider "sloppy branding" when they talk about UVO, and I didn't really know what it meant before I purchased my car, still don't feel 100% confident that I know all of what is about even today.
In my 2018 Plug-in Hybrid, it means that I can give voice commands to the car: I can ask the built in navigation system to select a course to a new destination, I can answer my cell phone (if my cell phone is linked with the car), I can give a voice command to the car to tell my cell phone to call someone, and then I can talk to that person over the speakers and microphones in my car, even though my cell phone is in my pocket.
UVO can also mean that I can connect to the car from either a cell phone or a home computer, and can discover it's status. For example, I can discover where it is currently, how many miles it has, etc.
UVO can also mean that when I'm in the shopping mall and planning to be back in the car 10 minutes from now, if I want to mess around with my cell phone for a few minutes, than I can push a button that instructs my car to turn on the air conditioning so that the car will be cooled off when I arrive. People in colder climes than I am in can use this same feature to ask the car to start heating the cabin (but that requires the gas engine to start, and you shouldn't ask it to do that if it's in a closed garage).
Hope this info helps. Welcome to the forum!
2018 Niro PHEV Gravity Blue