Could be related to the switch that detects when your foot is on the brake pedal.
Hi Nettles516. Were you able to figure out the problem? I'm having the same issue with my 2016 Kia SorentoI only see one actual switch on the pedal arm. I will do some more research.
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Mine also went out last week. I have ~67k miles on mine and the charge was about $900 for the BCM replacement. I reached out to Kia via Twitter and they are covering half the cost at least. I'd suggest going that route. It can't hurt.This just happened to me as well on my 2016 Sorento. I'm no longer under warranty (just my 100K, I'm at about 68K) so not covered. They are having to order the BCM and also a new shifter as the screwdriver that we used to put in the small lock area so we could drive it to the dealership ended up causing damage to some gasket and now the whole shifter has to be replaced. So the parts and labor are going to end up being $1800 which seems ridiculous.