ChargingHigh
ICCU faults affecting charging and 12V supply, addressed by recall updates
- Typically appears
- 20,000+ miles
- What to inspect
- Check the DVSA recall service and confirm the update was applied
2023–2026 Kia EV9 · common problems & known faults
A large seven-seat electric SUV where battery health, 800V charging and the software update history matter far more than the modest mileages these cars carry.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2023–2026 Kia EV9 are ICCU faults affecting charging and 12V supply, addressed by recall updates, State of health on rapid-charged, high-mileage cars and Infotainment and driver-assist software glitches. 2 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
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Build the inspection planReliability snapshot
Based on the documented faults on this page for the Kia EV9.
5.2/ 10
- Critical
- 0
- High
- 2
- Medium
- 4
- Low
- 2
Guidance only · reflects reported patterns, not a specific car's condition.
Kia EV9 problems by year
Which faults an average example has usually reached depends on its age. Pick a model year for the faults that matter on that build.
Known faults to check
BatteryHigh
State of health on rapid-charged, high-mileage cars
- Typically appears
- 30,000+ miles
- What to inspect
- Run a battery health report and compare with the original usable capacity
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Build the inspection planElectricalMedium
Infotainment and driver-assist software glitches
- Typically appears
- Age-related
- What to inspect
- Confirm the software version and test all cameras and sensors
SuspensionMedium
Very heavy vehicle wearing tyres and bushes early
- Typically appears
- 30,000+ miles
- What to inspect
- Check tyre inner edges and listen for front-end knocks
BodyworkLow
Large body attracting car park damage on doors and corners
- Typically appears
- Age-related
- What to inspect
- Inspect door edges, corners and rims
InteriorMedium
Second-row swivel seats on 6-seat variants failing to lock securely into the forward-facing position or rattling over uneven surfaces.
- Typically appears
- 5,000-15,000 miles
- What to inspect
- Release the second-row seat swivel latch, rotate the seat, and return it to the forward position. Ensure it clicks firmly into place and push/pull the backrest to check for excessive play.
ExteriorMedium
Flush electronic door handles failing to deploy automatically upon unlocking or sticking in the open position due to actuator faults or water ingress.
- Typically appears
- 10,000-20,000 miles
- What to inspect
- Lock and unlock the vehicle using the key fob three times in succession. Observe all four exterior handles to ensure they present smoothly and retract completely flush with the door panel.
HVACLow
Excessive vibration or loud humming from the front heat pump and blower motor assembly during high-demand cabin heating.
- Typically appears
- 10,000-25,000 miles
- What to inspect
- Set the climate control to maximum heat and the highest fan speed. Sit in the cabin and stand near the front bonnet to listen for abnormal resonance or grinding noises from the pump.
Inspecting a Kia EV9?
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Build my inspection planFrequently asked questions
Is the EV9 practical for families?
Yes, it is a genuine seven-seater, which is rare among electric SUVs.
What is the running cost warning?
Tyres are large and expensive, and the weight wears them quickly.
What warranty applies?
Kia's seven-year warranty transfers to subsequent owners; confirm the mileage cap by VIN.
Does depreciation hurt?
Yes, large EVs have fallen sharply, so buy on current trade values.
What is the towing capacity of the EV9?
The EV9 is highly capable for an EV, boasting a maximum braked towing capacity of up to 2,500 kg on dual-motor AWD versions, whereas RWD models are limited to 900 kg. Always check the V5C to confirm the specific variant's rating and inspect the factory-fitted retractable tow bar for smooth operation.
What are the correct service intervals for this model?
Kia mandates routine servicing every 24 months or 20,000 miles, whichever comes first. Despite being an EV with fewer moving parts, dealers must ensure the brake fluid is replaced, the cabin filter is changed, and the high-voltage battery coolant is inspected to maintain the manufacturer warranty validity.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.
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