My ppf warning came on yesterday for the 3rd time. I’ve done 3k miles and had 2 forced regeneration already I’ll try clearing myself using their advice for clearing ppf but I was unsuccessful last twice. When took to dealership they have told me each time to have at least half a tank of fuel for forced regeneration as far as I’m concerned the car is not fit for purpose just go onto the kia forums and you’ll see all the problems with this ppf it’s been going on for a few years and all the software fixes have been absolutely useless.