Thank you IS973800. I opened mine up and took a picture and blew it up. Mine too is a KR5T44. Just for grins, I called the service dept of the place I bought the car. They were very nice, but he said he had to research how to get the ID. He called back an hour or so later and said they knew of no way of getting it. I truly think it was a case of them not knowing, I don't think they were just trying to get me to buy THEIR parts. As they are the ones that said they would gladly program and cut any keys/fobs I brought to them.You have to remove the cover of you key FOB as if you were going to be replacing the battery. Once the cover is off, you will see the FCC ID on the circuit board. I think my 2019 Touring FOB has an ID of KR5T44 after checking it just now but the numbers are pretty small. I don't have a magnifying glass handy right now to make sure of the numbers. Here is a You Tube video of how to remove the cover.
Remove Key FOB Cover