I know Kia extended the warranty on the multi-function switch to 150,000/15 years but got a "voluntary service campaign" letter yesterday to now proactively replace the switch if your vehicle is covered. So I called my dealer yesterday and shocker, they don't have the replacement part. They did say this is not a "inspect and replace" campaign but rather "mandatory replacement" if you got the letter. They anticipate replacement parts within two weeks and put me on the list to call when they are in and apparently I was the only one on the list so far. Covers 2016-2018 model years but not sure if all trim levels or only some.