Common Problems with the
2024 Kia EV6

We've identified 2 known issues that can affect the 2024 Kia EV6. 1 of these are serious faults that could be expensive to repair.

Known Issues

Serious

Moderate

Minor

The 2024 period has an average number of reported issues compared to other Kia EV6 year periods.

All Known Issues

ICCU Failure & MOSFET Damage

SeriousElectrics & Electronics

The Integrated Charging Control Unit can fail due to overvoltage spikes that damage internal MOSFET transistors. This often blows a 40A high-voltage fuse, disabling the DC-DC converter that charges the 12V battery.

Most affected: All EV6 models (Standard, Long Range, GT)

Estimated cost: £0 (Recall SC302)Affects: 2021–2024Often appears around: 2,000–30,000 miles

Typical symptoms

•"Stop vehicle and check power supply" warning
•Audible "pop" followed by loss of power
•Car enters Turtle Mode
•Total electrical failure

What to inspect before you buy

✓Check the official UK recall database for the specific VIN
✓Verify if TSB 24-01-086H or equivalent UK campaign is completed

12V Battery Logic Bugs

ModerateElectrics & Electronics

Early software logic would cease 12V battery maintenance if the main High Voltage battery dropped below 20%. Newer updates have revised this "Orange Light" logic to be more aggressive in maintaining 12V health.

Most affected: All EV6 models

Estimated cost: £0 (Software update)Affects: 2021–2024Often appears around: Any

Typical symptoms

•12V battery dies while parked despite HV battery having 20%+ charge
•Remote app fails to wake car

What to inspect before you buy

✓Confirm the latest BMS and VCU software versions are installed

Buying Tips for the 2024 Kia EV6

✓Crucially, check the VIN for the ICCU (Integrated Charging Control Unit) recall (R/2024/197); ensure the software update or unit replacement is documented.
✓Check for any "Stop vehicle and check power supply" alerts in the history; this indicates the 12V battery is no longer being charged by the main pack.
✓Test the 12V battery health; persistent "low battery" warnings often precede an ICCU hardware failure.
✓Test the flush-fitting door handles to ensure they retract and extend smoothly, as early models had alignment issues.
✓Ask if the car has been used with third-party apps like Optiwatt, as these can trigger 12V drain by preventing the car from entering "Deep Sleep".

2021–2023 Kia EV6