A little late here, but can we all agree this isn't old news. And it's surely not about millings being left behind in the manufacturing process one time in 2010. Hyundai is lying about the issues, and seemingly refuses to fix the real issue. Independent inspections of affected vehicles determined there were several issues from faulty HPFP parts, faulty electronics, fuel rail issues, and even engine blocks blowing holes that dump oil onto the exhaust. We're talking 10 years worth of recalls. That's enough time to diagnose and fix their design/parts.
I agree that the issue of engines just popping for no "apparent" reason (LSPI) has been pretty well buttoned up. But the engine fires still going on is not very exciting to hear. Just yesterday Hyundai/KIA extended the recall to include more cars. It's up to 5.6M vehicles ranging all the way up to 2019, my guess is that the recall will go on with time, meaning next year the 2020s will be included, then the year after that, the 2021s will be included. MANY thousands of cars have burst into flames while driving, and people have been killed because they couldn't stop their flaming car in time to get out because the brakes also failed.
I personally am not too concerned about my car catching on fire, because to me, it's just metal that can be replaced, and I am perfectly capable of stopping a car without brakes in a life and death situation. And even though it has been many thousands of cars that have been destroyed, they have sold millions of cars over the same timeframe, so the percentage is relatively low (although anything more than 1 car bursting into flames should be concerning). But it irritates me that Hyundai won't take the steps to fix the issues, rather they seem like they're lying and hiding something. From all of the cases I've read about, the #1 most common issue seems to be related to the HPFP leaking from either the unit or the connectors. And then some people who had warranty work done, the "fix" seemed to damage the fuel rail which then causes that to leak and catch fire instead.
It reminds me of the GM ignitions switches that were failing and killing people. Instead of replacing them with better quality parts, they just changed the part number to try and hide the issue from auditors.