ICCU failures preventing charging or 12V top-up, subject to recall action
- Typically appears
- 20,000+ miles
- What to inspect
- Check the DVSA recall service by registration and confirm the ICCU update was applied

A 2023 Hyundai Ioniq 6 is now 3 years old, so an average example has covered around 40,500 miles. This is the first model year of the generation · early-build cars carry the highest share of teething faults and the most recall activity, so check the service history for completed recall work. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2023 car has usually reached the mileage where they appear.
Compiled & reviewed by the VehicleFaults Research Team
The 2023 Hyundai Ioniq 6 is 3 years old, so an average example has covered roughly 40,500 miles. At that mileage 3 of the documented faults are already due, so check those first.
Documented onset mileage is at or below the ~41k miles an average 2023 car has covered.
ICCU failures preventing charging or 12V top-up, subject to recall action
Drive battery state of health on high-mileage rapid-charged cars
Rear discs corroding through light use
Age, electronics and build-related issues that are not mileage-driven.
Infotainment and driver-assist software faults
Low, wide body attracting kerb and underbody damage
Generate a tickable pre-purchase checklist for this exact year, mileage and variant · add photos and notes as you inspect.
Check this exact carThe integrated charging control unit can fail, preventing charging; recall and update work addresses it.
Yes, it rapid charges very quickly when the charger supports it.
Hyundai typically covers the high-voltage battery for eight years or 100,000 miles; confirm by VIN.
It is a niche shape, so price realistically and lead on efficiency.