DavidR
New Member
Hi, All,
I tried "fast charging problems" to find any other references to loss of fast charging capability on this forum, and my search only came up with the above from January 2025 under the Current Mileage and any noticable issues? thread. After typing up my saga below, from more searching I see that I needed to limit my search to "fast charging" plus maybe "fast charging issues" and go through a ton of those to find that the charging port's locking motor or locking motor actuator are often the culprits!
Are there other possible culprits?
***Do you think that my situation fits those possible "solutions"?
My usual routine is to use the button to unlock all doors before trying to remove the level-2 hose or level-3 hose from the charging port -- the level-1 hose seems to come free without that. I have noticed recently that I've had to unlatch the hood and use the emergency charging port release more often to get the hoses to release.
MY KONA's LOSS OF FAST CHARGING (twice, to date):
Starting with a 100% charged battery from my level-2 charger at home, I left on a 275-mile trip to Vermont from Ithaca (NY) in March 2025 in my 2019 Kona EV with 59,229 miles. Along the way, the car wouldn't charge at level-3 fast (CCS-combo) chargers from 2 different vendors, but would still charge at level-2 (J1772) chargers. Three different error messages from the chargers occurred when I would try the same and different charger stations: like (1) "Connector not appropriate. Please try a 120v or 240v charger"; or (2) "Charge complete" (when no current had flowed & the SOC was still at the 61% I'd arrived with, and the level-3 limit was set at 80%); or (3) "Charging start error". The only indication on the dashboard was a triangle with an exclamation point (!) in the top and the letters EV in the bottom of the triangle, although that symbol disappeared at some point in the round trip.
On that trip I tried without success to get help at 3 Hyundai dealers along the way -- all too busy. I ended up staying overnight part way each way and charging back up to 90% at a level-2 charger during the night. Just for grins, on the way back home I tried charging at a level-3 charger that I'd failed at on the way out, and it worked. When back home, my local Hyundai dealer had never heard of this problem, but on searching the car's history they found 2 faults had been triggered:
--fault P1BAB00 "Quick Charging Fault by CCM" (charge control module), and
--fault C182C00 "EVSE Failure" by the BMS (battery management system).
They replaced the Charge Control Module, and cleared the faults. They didn't have a level-3 charger to test it on, but the car did charge several times at level-3 chargers as I took several more 200-300 mile trips.
Then it failed to charge on a 185-mile drive to the Adirondack Mts 2 weeks ago in early May, which I could finish without having to charge until I got there, and charged there back up on a level-2 charger for the return trip. My Kona is now back at the dealer.
BMS UPDATE referred to above by KiwiME in January - Would that help?
So when I brought the car in again a couple days ago, the service manager was buffaloed (stymied). Today the service manager said that there was an update to the Battery Management System available for my car, and hoped that would address the issue, but he later said he thought that update was to allow us to use Tesla charging systems, and probably wouldn't solve this problem. The tech is talking to some online service help that they have access to through Hyundai.
KIA NIRO - with same issue
I know of only one EV acquaintance who has the same issue -- it's a Kia Niro which has been defeating his dealer's efforts (near Buffalo, NY) to solve the loss of level-3 fast charging since January 2025. Don, the owner, tells me that the service techs "replaced the charging port. That didn't work, they replaced I think the harness/connectors between the charging port and the charge control module, and that didn't work so they replaced the charge control module. That didn't work either." He hasn't seen his Niro since January, and says he's put 6000 miles on the dealer's loaner car and he'll have to have the engine oil changed soon!
**Does anyone have any possible solutions that I can pass along to my service manager?
Is this a widespread problem?
Is it covered by a Tech Bulletin?
Is it covered under warranty or recall?
It happened first right as the 60,000 mile/5-year general warranty was elapsing. Now I have 62,000 miles on the Kona since buying the 2019 Kona new in December 2020.
Thanks for any thoughts.
