2023 Hyundai Ioniq 5 — car died once at a light and restarted immediately

I'd treat 12V warnings as a no-ignore. On the 2023 Hyundai Ioniq 5, I'd get the 12V/DC-DC side checked even if the traction pack looks fine. Then you'll know the next fork. On “car died once at a light and,” that was the fork that mattered for me. I'd want a dollar figure or a measured spec, not 'should be fine.' If that fails I'll eat the diagnostic fee.

Low-voltage gremlins will strand you even with a full pack. Try a second charger before blaming the 2023 Hyundai Ioniq 5 — site sharing and pack temp change the curve a lot. That's where I'd start. No need to make it theatrical. Worth doing even if the car feels fine right now. Not driving it hard until I know more.

Charge curves lie if you don't match starting SOC and temp. Match starting SOC and battery temp if you're comparing 2023 Hyundai Ioniq 5 charge sessions. I'd do that before spending real money. If it doesn't change the out-the-door or the repair estimate, it's noise. I keep a notes app thread for this now.