Quick Facts — Kia EV9

Est. On UK Roads
8,000+
Years Made
2023–present
Common Engines
76.1 kWh RWD, 99.8 kWh AWD, GT AWD

6 Most Common Kia EV9 Problems

These are the faults most frequently seen on the Kia EV9 by UK garages — ranked by how commonly they occur and what they cost to fix.

1
Software and OTA Teething Issues
Watch
Some early EV9 owners have experienced software glitches affecting the infotainment, ADAS and charging behaviour. OTA updates have addressed most known issues.
💷 Typical repair cost: £0–£300
2
Charging Speed Inconsistency
Watch
Some EV9 owners report inconsistent DC fast charging speeds at certain charge points. Kia software updates have improved compatibility.
💷 Typical repair cost: £0–£200
3
Interior Panel Fit
Low Priority
Some early examples had minor interior panel fit complaints — particularly around the third row seating area.
💷 Typical repair cost: £0–£300
4
12V Auxiliary Battery
Low Priority
The 12V auxiliary battery can fail on any EV causing random electrical faults. Worth checking on older examples.
💷 Typical repair cost: £100–£220
5
Panoramic Roof Wind Noise
Low Priority
A small number of owners report wind noise from the panoramic roof at motorway speeds.
💷 Typical repair cost: £0–£200
6
Rear Wiper Streaking
Low Priority
Some EV9 owners report rear wiper streaking — usually a wiper blade quality issue rather than a mechanical fault.
💷 Typical repair cost: £10–£30

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Kia EV9 — MOT Tips

All high-voltage system warning lights must be clear. All ADAS systems including lane keeping and AEB must function correctly on this modern vehicle. Check all three rows of seat belts — all must work for MOT.

Engine management light on before your MOT? It's an automatic fail. Run a Find Your Problem Now → to get the likely cause and repair cost before booking the test.

Kia EV9 Tyres

Most Kia EV9 models run 255/45 R20 or 255/40 R21 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.

🔍 Not sure what's wrong? Check your symptoms & likely causes →

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Frequently Asked Questions

What is the most common problem with the Kia EV9?

The most frequently reported issue on the Kia EV9 is Software and OTA Teething Issues. Some early EV9 owners have experienced software glitches affecting the infotainment, ADAS and charging behaviour. OTA updates have addressed most known issues.

How many Kia EV9s are on UK roads?

There are an estimated 8,000+ Kia EV9s currently on UK roads.

What tyres does the Kia EV9 use?

Most Kia EV9 models run 255/45 R20 or 255/40 R21 depending on trim level and year. Always check the placard inside the driver's door for the exact size for your vehicle.

Will a warning light fail my Kia EV9's MOT?

All high-voltage system warning lights must be clear. All ADAS systems including lane keeping and AEB must function correctly on this modern vehicle. Check all three rows of seat belts — all must work for MOT.

Similar Issues on Other Models

Audi Q7 — another large SUV worth checking if you're cross-shopping BMW X5 — a comparable large SUV with its own common fault list

Summary

The EV9 is an exceptional large electric SUV. Being very new, almost all UK examples are under warranty and major faults are rare. Software updates and charging compatibility are the main areas to monitor as the fleet matures.

If your Kia EV9 has a warning light on or a symptom you can't identify, a Find Your Problem Now → gives you likely fault causes, UK repair cost estimates and MOT risk — instantly.

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Other Kia Models

Kia Sportage → Kia Ceed → Kia Niro → Kia EV6 →