Hyundai brand mark

2025 Hyundai Ioniq 5 problems

A 2025 Hyundai Ioniq 5 is now a year old, so an average example has covered around 13,500 miles. The final model year of the generation · generally the most sorted build, so mileage, servicing and condition matter more than build-year faults. Check the state safety inspection and service history alongside the documented faults below, which are sorted by whether a 2025 car has usually reached the mileage where they appear.

Compiled & reviewed by the VehicleFaults Research Team

Quick answer

The 2025 Hyundai Ioniq 5 is a year old, so an average example has covered roughly 13,500 miles. At that mileage most documented faults are still ahead of it, so servicing evidence matters more than wear. A further 5 typically appear later in the car's life.

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Faults that appear at any mileage

Age, electronics and build-related issues that are not mileage-driven.

ElectricalMedium

Infotainment and instrument cluster software glitches requiring updates

Typically appears
Age-related
What to inspect
Check the car has the latest software update and test all screens for freezing
InteriorLow

Dashboard and door trim rattles on rough roads

Typically appears
Age-related
What to inspect
Drive over rough surfaces and listen for interior rattles
BodyworkLow

Panoramic sunroof wind noise and seal issues

Typically appears
Age-related
What to inspect
Check for wind noise around the sunroof at motorway speed if fitted

Faults still ahead of this car

Typically appear later than this year's average mileage · worth budgeting for rather than inspecting.

ElectricalMedium

12V battery drain issues on early production cars

Typically appears
20,000+ miles
What to inspect
Check the 12V battery health and ask about any history of failed starts
SuspensionMedium

Rear suspension knocking from worn bushes

Typically appears
40,000+ miles
What to inspect
Check for knocking noises over speed bumps at the rear
High Voltage SystemHigh

Integrated Charging Control Unit (ICCU) failure preventing AC charging or displaying a 'Check EV System' warning.

Typically appears
15,000-40,000 miles
What to inspect
Plug the vehicle into a forecourt AC wallbox. Ensure it initiates and sustains a charge for at least 60 seconds without dashboard error messages.
Exterior ElectricalMedium

Motorised charge port door mechanism fails to open, gets stuck, or makes grinding noises during operation.

Typically appears
20,000-50,000 miles
What to inspect
Press the charge port door button on the key fob and the physical button on the car. Verify it opens smoothly and closes completely flush.
BodyworkMedium

Flush exterior door handles fail to present automatically when the vehicle is unlocked.

Typically appears
30,000-60,000 miles
What to inspect
Lock the car, wait 10 seconds, and unlock it using the key fob. Confirm that all four electronic door handles pop out simultaneously and retract fully when locked.

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Hyundai Ioniq 5 · frequently asked questions

Is the Ioniq 5 reliable?

Yes, it has a strong reliability record, with most issues being minor software glitches.

Should I check the 12V battery?

Yes, early cars had some 12V drain issues, so checking its health is a sensible precaution.

Is battery degradation a concern?

Battery health is generally strong under the manufacturer warranty, but a health check report is still worthwhile.

Are there any structural concerns?

None significant, though checking for panoramic sunroof wind noise is worthwhile if fitted.

What are the servicing requirements for the high-voltage battery coolant?

The Ioniq 5 uses a specialised low-conductivity coolant for the high-voltage battery system. This must be replaced every 40,000 miles or 3 years, whichever comes first. It is a costly service procedure requiring diagnostic tools to bleed the system, so check the service history to ensure this has been completed on schedule.

Does the Ioniq 5 suffer from accelerated or uneven tyre wear?

Yes, due to the vehicle's kerb weight of over two tonnes and instant electric torque, rear tyre wear can be rapid, particularly on dual-motor AWD variants. Inspect the inner edges of the rear tyres carefully, as factory camber settings can cause the inner shoulders to scrub out significantly faster than the outer tread.

Other Ioniq 5 model years

202420222021

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