IsItAGoodCar
Reliability Guide

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.

2
Known Issues
1
Serious
1
Moderate
0
Minor

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.

Est. Repair Cost: £0 (Recall SC302)
Warning Signs:

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

What to Inspect:
  • Check the official UK recall database for the specific VIN
  • Verify if TSB 24-01-086H or equivalent UK campaign is completed
Verified by IsItAGoodCar Research Team

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.

Est. Repair Cost: £0 (Software update)
Warning Signs:

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

What to Inspect:
  • Confirm the latest BMS and VCU software versions are installed
Verified by IsItAGoodCar Research Team

Buying Tips for 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
Check a 2024 Kia EV6 by Registration