🚗Kia EV9 Battery Issue Hits Up to 10% of Owners
Up to 10% of Kia EV9 owners face battery issues
TL;DR
Up to 10% of Kia EV9 owners are experiencing significant battery problems. The 12V and high-voltage batteries can fail, causing charging issues and reduced range. Wait times for repairs can be up to nine months.
Kia EV9 owners face a serious issue: up to 10% have reported faulty 12V and high-voltage battery packs. When the 12V battery dies, cars become unusable. Even after software updates, some still experience charging issues like jumping from 82% to 100%, then dropping range to around 30 miles. The main high-voltage pack's faulty cells can cause a car to lose power while driving. Kia has issued warranty extensions but wait times for repairs are up to nine months in the UK, with slightly better results in the US.

Key Points
Up to 10% of Hyundai and Kia EV owners experienced ICCU failures, causing power loss while driving.
Kia's battery repair program has no ETA but covers the eight-year warranty period in the UK.
Some EV9s only had 71kWh usable energy at full charge instead of expected 96kWh.
Wait times for a new battery can be as long as nine months, with courtesy cars provided.
An OBD scanner was used to diagnose issues like dead cells and reduced range.
Why It Matters
If you own a Kia EV9 or are considering one, the battery issue is critical. Up to 10% of owners face significant problems that can render their car unusable for months. The high-voltage pack's faulty cells can cause power loss while driving, an incredibly dangerous situation. Warranty extensions help but long wait times mean many owners are without reliable vehicles.
Frequently Asked Questions
Why does this matter?
If you own a Kia EV9 or are considering one, the battery issue is critical. Up to 10% of owners face significant problems that can render their car unusable for months. The high-voltage pack's faulty cells can cause power loss while driving, an incredibly dangerous situation. Warranty extensions help but long wait times mean many owners are without reliable vehicles.
What happened?
Up to 10% of Kia EV9 owners are experiencing significant battery problems. The 12V and high-voltage batteries can fail, causing charging issues and reduced range. Wait times for repairs can be up to nine months.
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