I started experiencing the failed charging back in Aug of 2022 at around 4k miles; no issues prior to this on my 03/22 build delivered 06/22...Port and VCMS replaced in Sept 22', still had the issue. Dealer took the car back in Oct of 22' and had it until Feb of 23' trying to figure out why the charging was failing...Post TSB update, my car exhibits the same behavior mentioned here on 3 different chargers, two at home and 1 at the dealership; a software throttled charge where it would previously fail. Initial charger was a Juicebox 40 on a N14-50 connected to a 50A circuit. Second charger is a Juicebox 48 and my whip off the charger is hardwired directly to a 60A circuit on the panel...No splicing, junction boxes etc... Car starts at 11.2kW + or - and then drops to 7kW after an hour or two leaving me with not enough charge for my 170mi commute at 4 a.m. Extremely frustrating. This makes the "leave by" function useless as well since the car thinks it's gonna charge at 11kW/h only to be ultimately throttled to 7kW/h. My TOU period here in San Diego is from 00-0600...The fact my car needs to start around 2000 (on-peak/most expensive) to be ready by 04 at 7kW/h is stupid when 11kW/h is available. During my cars stay at the dealership, I had 4 different loaners...A Kona EV, Niro EV, Leaf, and another Niro EV which never had any problems on the JB 40.
Side note and something that's interesting...All these cars pulled a full 7.5 kW/h from their onboard chargers...My EV6 was always around 7.2, 8.2, 9.2, and now 11.2 with the current JB48...This leads me to believe there is something wrong with the inverter...There's 242V available at my panel and the car is always 235-238 under load. Something stinks and it's this dumpster fire of an EV Kia put out before it was ready for prime time IMHO. I'm open to suggestions.