2021 - 2022 KONA Electric - Check Electric Vehicle System Error

Interesting about the Kia Niro recall. Ours is a 2021, but possibly the same EPCU, so I take some comfort in having had it replaced with a (presumably better?) new one.

As for the dealer killing the 12 volt twice, I'll cut them some slack at least for this event. This time, it probably was already dead or near dead by the time they got it, based on warnings the car was giving me as I tried to get it going before it got towed there. I'm more suspicious about the previous time, but the battery was 3 years old at the time and I hear that's around the life expectancy of the original ones.

Unrelated, we just picked up a 2019 Honda Clarity plug-in as a second vehicle and I'm on a big learning curve regarding it (yes, I'm reading the posts in the Clarity forum on this site). Going on a 400 km trip tomorrow just to test it out. Main reason for getting it was to eliminate range anxiety and detailed charger planning on long road trips.
 
Interesting about the Kia Niro recall. Ours is a 2021, but possibly the same EPCU, so I take some comfort in having had it replaced with a (presumably better?) new one.

As for the dealer killing the 12 volt twice, I'll cut them some slack at least for this event. This time, it probably was already dead or near dead by the time they got it, based on warnings the car was giving me as I tried to get it going before it got towed there. I'm more suspicious about the previous time, but the battery was 3 years old at the time and I hear that's around the life expectancy of the original ones.

Unrelated, we just picked up a 2019 Honda Clarity plug-in as a second vehicle and I'm on a big learning curve regarding it (yes, I'm reading the posts in the Clarity forum on this site). Going on a 400 km trip tomorrow just to test it out. Main reason for getting it was to eliminate range anxiety and detailed charger planning on long road trips.
Don't forget to press the HV (Hybrid Vehicle) button in your Clarity after you stop for gas, food, or.... Othewise, you'll be driving in the default EV mode and use up all your traction battery power without realizing it. On trips, I tape a paper HV label over the D[rive] button to remind me to press HV after stopping.
 
Good insight, man (see what I did there?). I'm going to post a couple questions in the Clarity forum and hope you can provide some more insight there too.
 
That's certainly a rare failure and the EPCU is a major part of the car's electrical system. It's interesting that the dealer killed a 12V battery on both repair visits and then doesn't put 2 and 2 together. All they had to do was to disconnect it.

As a note there was a recall on the 2020 Kia Niro EV regarding the EPCU. The defect described would have caused the loss of isolation found. I believe this part is identical to that used in the Kona, at most differing only by firmware.

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I had my EPCU replaced in my first 6 months of ownership in my '18 after my car died. There's a lengthy thread about it buried somewhere.
 
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