Quick Facts — Hyundai Ioniq 5

Est. On UK Roads
30,000+
Years Made
2021–present
Common Engines
58 kWh RWD, 72.6 kWh RWD, 72.6 kWh AWD

6 Most Common Hyundai Ioniq 5 Problems

These are the faults most frequently seen on the Hyundai Ioniq 5 by UK garages — ranked by how commonly they occur and what they cost to fix.

1
Software and OTA Update Issues
Watch
Some Ioniq 5 owners have experienced issues following over-the-air software updates — ADAS malfunctions, charging speed reductions and infotainment glitches. Hyundai has issued multiple patches.
💷 Typical repair cost: £0–£300
2
800V Charging Compatibility
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Early Ioniq 5 models had some compatibility issues with certain 800V ultra-rapid chargers. Software updates have resolved most of these.
💷 Typical repair cost: £0–£200
3
Heat Pump in Cold Weather
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The heat pump reduces range noticeably in very cold UK winter conditions. Not a fault but a known characteristic.
💷 Typical repair cost: N/A
4
Rear Brake Squeal
Low Priority
Rear brake squeal after inactivity is commonly reported — surface rust on rear discs causes noise until the brakes clear.
💷 Typical repair cost: £0–£300
5
12V Auxiliary Battery
Low Priority
The 12V auxiliary battery can fail on older examples causing random electrical faults.
💷 Typical repair cost: £100–£220
6
Panoramic Roof Wind Noise
Low Priority
Some owners report wind noise from the panoramic sunroof seal at motorway speeds.
💷 Typical repair cost: £0–£200

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Hyundai Ioniq 5 — MOT Tips

All high-voltage system warning lights must be clear. ADAS systems including AEB and lane keeping must function correctly. Charging port must operate. 12V auxiliary battery should be verified on older examples.

Engine management light on before your MOT? It's an automatic fail. Run a MotorLoom diagnostic for £1.99 to get the likely cause and repair cost before booking the test.

Hyundai Ioniq 5 Tyres

Most Hyundai Ioniq 5 models run 235/55 R19 or 255/45 R20 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.

Summary

The Ioniq 5 is an outstanding electric car — one of the best all-round EVs on sale. Most UK examples remain under warranty. Software behaviour and charging system reliability are the main areas to monitor as the fleet ages.

If your Hyundai Ioniq 5 has a warning light on or a symptom you can't identify, a MotorLoom diagnostic report for £1.99 gives you likely fault causes, UK repair cost estimates and MOT risk — instantly.

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