Merry Christmas! Kona won't start - HV error :(

Sorry to hear. One thing to watch out for with the dealership service team from my experience is to make sure they take the time to get more details on the exact alarm the car is throwing since it likely is a new alarm that isn't in their service manual yet. The first dealership I brought mine too was able to clear the alarm and get the car running again without taking the time to find out what the alarm code meant. Then the second dealership it got towed to took the time to contact Hyundai engineering and found out that the alarm was indicating the main battery needed to be replaced.

 

Usually the dealer needs to get Tech line on the phone to help diagnose, and they might need to go back and forth collecting diagnostics. Hopefully it is an easy fix this time.

 

Condolences to the OP, please keep us updated. Its been a couple of weeks since they cleared my EV system code. My dealer with HYTAC( Canadian tech line) guidance is hoping its just a failed firmware flash. I have zero confidence it won't happen again I just hope I won't be stranded in the boonies when it does.

 

What was your SOC at the time it happened?

 

Hoping for the best. Best of Luck! If it turns out that the HV battery is toast, I'm watching this to see how Hyundai handles it.... if they will actually replace the battery or buy back the car??? There are VERY few dealers that are equipped to replace the battery and getting a new battery from Korea may take months...

 

If it charged to the limit at 90% and you had 88% in the morning (which could mean between 88.00 to 88.99%) then that's a whole lot more than a "vampire drain". That sounds more like cell leakage, exactly what the software is intended to catch. Also, any drains are tabulated by the BMS using the current shunt while leakage is not.

 

Any consolation, your Kona electric looks GOOD being loaded onto the flatbed. Have you noticed the battery saver light coming on post the updates? I have had one since,but it started.

 

Well, this is normal as the car wakes up frequently since Recall 960, the first one..

 

I wasn't thinking about the lemon law but that it may be easier for Hyundai just to buy back the car instead of going through the hassle with the battery.. They may have to have your car shipped to another location to get the swap done..

 

Battery saver function OOSEV048120L comes on,but at some point,it's no longer normal. How frequently,I found something somewhere that said about 6 times?I have hit this number since taking delivery.That light came on pre the recalls.

 

It used to do the top-up every 24 hours, it's now every 4 hours after the update

 

Forgot to mention,on my last charge,set to 90%. The infotainment range was supposed to be 425km.Not actual driving mileage, I know. I got about 18% less when the car shut off at the programmed 90% . I have had the battery recalls done.