I just came back from dealer and they replaced the part on the multi function switch that is covered under the extended warranty; however, they also told me this did not fix the issue on my vehicle and I need an entirely new multi function switch ASSEMBLY. This is not covered under the extended warranty and would cost around $500!What was the outcome of taking it to the dealer? My 2017 Sorento just started doing this a few weeks ago and has done it twice while on the highway which is super scary.