u/Commercial-Safety635

When my ICCU failed two weeks ago, I had to drive it 7 miles to the dealership. At first it wouldn't go faster than 40 mph, then dropped to 20 mph fairly quickly. At that point, I realized it was in the default level 3 regen, so I switched it to level 0 and got the speed up to 30 mph. Hard to tell, but I bet I got more range as well. The good news is that I got it to the dealership. The bad news is it took two weeks to fix. But the good news is that the extended warranty became official while it was at the dealership so when I picked it up today, I didn't have to pay a cent.

I bought a non-CPO high-mileage (140k miles) 2023 Ioniq 5 in March. Six weeks later, ICCU goes ka-blooey. The Hyundai dealer I took it to says the warranty only covers 100K miles and that I'm on the hook for $4600.

Has Hyundai actually published the 180K warranty extension anywhere? Saying "I read it on Reddit" isn't convincing them that it should be covered.

Does the extended 180K warranty only apply to original owners, or to CPO vehicles?

2023 SEL RWD, purchased 6 weeks ago with 140,000 miles.

I popped out the filament bulbs in the map lights and the trunk and replaced with LED lights. Yay, they worked.

But an hour later my wife drove the car and the "Stop Vehicle and check power supply" warning came on. There's also a warning icon that looks like a 12v battery. The car drives, but tips out at 40 mph. Have only driven around the block with the warning on.

My wife is convinced I caused this by fiddling with the cabin lights. I took out the LEDs and put the original bulbs in, but I still have the power supply warning.

Is this a coincidence, or is it possible that I did mess something up by swapping out the lights?

I guess I need to take this to a dealer as soon as possible. I'm hoping that maybe just the 12v needs replacing and isn't going to need an ICCU replacement.

Any advice?