2023 Kia EV6 · symptom sheet
Battery dies or the car will not start
- 43owner reports
- 10,523median miles
- 0involved a crash
Newest report Aug 14, 2026 · checked Oct 2, 2026
103 of the 137 complaints on this car are about the electrical system. 43 of those describe dead battery, which makes it the most reported problem on the 2023 EV6.
Tick what matches of 43 reports
Dead battery on other EV6 years
Report counts are for each model year on its own, so a newer car has had less time to collect them.
What this problem usually is
These owners walk out to a car that's dead. Some find it drained after sitting only a day or two, some need a jump start every week, and some have had the battery replaced more than once without the problem going away. A good number describe the dealer testing the battery, calling it fine, and sending them home.
What got replaced
Owners who name the part that was replaced mention the battery (37 reports).
Recalls and investigations
3 recalls on the electrical system cover the 2023 model year. A recall on the same system isn't always the same failure, so read the defect text.
The high voltage battery cells may contain misaligned electrodes, which can lead to a fire while parked or driving.
The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-volt battery, which can result in a loss of drive power.
The Integrated Charging Control Unit (ICCU) may become damaged and stop charging the 12-Volt battery, which can result in a loss of drive power.
All 4 recalls on the 2023 Kia EV6, with the owner complaints on each recalled system
NHTSA investigations into the electrical system on the EV6
Loss of motive power. Closed apr 17, 2024, led to recall 24V-200.
Pedestrian alert sounds. Closed aug 7, 2023, led to recall 22V-063.
None of these investigations covers the 2023 model year.
When it happens
The middle half of failures fell between 8,000 and 30,000 miles, from the 8 reports that gave a mileage.
Is this a known problem?
The manufacturer has sent NHTSA 3 service bulletins or notices for the 2023 Kia EV6 that deal with this problem. Newest first.
Federal rules make a manufacturer send NHTSA a copy of any notice about a defect that goes to more than one dealer or owner. Most of these are service bulletins, the repair instructions manufacturers send to dealers. NHTSA generally leaves safety recall bulletins out of this file, and recalls are listed separately.
PITSTOP: SHARING KIA CONNECT CREDENTIALS WITH THIRD-PARTY APPS AND POTENTIAL IMPACT TO 12V BATTERY IN EVS Kia is aware of reports of unexpected drainage of the 12-volt battery in some Kia electric vehicles (EVs). While Kia¢s investigation is ongoing, a possible cause of the issue may be third-party applications used by the customer that are causing excessive ...
BMS DTC JUDGEMENT LOGIC IMPROVEMENT (P1AA600) This bulletin provides information to update the software logic of the Battery Management System (BMS) on some 2022-2023MY EV6 (CV) vehicles produced from November 17, 2021 through February 3, 2023 which have a stored DTC P1AA600.
VCMS BATTERY CHARGING LOGIC IMPROVEMENT This bulletin provides the procedure to update the software logic of the Vehicle Charging Management System (VCMS) system on some 2023MY EV6 GT (CV GT) vehicles produced from June 21, 2022 through March 28, 2023, which might experience inoperable High Voltage ...
What owners wrote
“1st instance: Battery Coolant errors that occurred on and off. 2nd instance: The ICCU unit failed and car was not able to charge via level 2 and only fast charge. Car was still operable. Dealer replaced ICCU 3rd instance: The ICCU failed and car was rendered inoperable. Dealer Replaced ICCU. We are now on our third ICCU since we purchased the car in 11/26/2022. This would be considered a lemon law”
Filed Mar 2, 2026
“Pulling out of garage, car warned of limited speed and then within about 30 seconds completely shut down-- could not move, operate locks, etc. Car could not be started again and had to be towed away. 12v battery had been drained down to 4v due to failure of ICCU unit. Dealership replaced entire ICCU unit and fuse.”
Filed Feb 23, 2026
“Got a Check electrical system error, car reduced speed and 12v battery stopped charging. Car was towed to the dealership and they confirmed that the ICCU needed to be replaced.”
Filed Jan 8, 2026
“Car said there was a 12V low battery danger and said to pull over immediately while driving. After taking it to the dealership, they said my ICCU went out. So they had to replace it. I've read that the ICCU on these cars are notorious for failing and needing replacement.”
Filed Dec 23, 2025
Should you keep driving it?
This page can't tell you that. 0 of 43 reports involved a crash. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.
File your own report with NHTSA. Complaint counts are how a problem gets an investigation. How reports land on this sheet.
Guide Paid for this repair before a recall covered it? How recall reimbursement works