KNOWN FAULTS · Hyundai
Hyundai Kona (II) common problems.
2023–2026 · Petrol / Hybrid / Electric
Sources are not verified in real time and no entry confirms that your car is affected.
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3 known faults with sources
Engines: 1.0 T-GDi (Petrol)
Applies if: Same type of direct-injection turbo engine (T-GDi).
Carbon on the injectors and intake of the T-GDi petrol enginesInjection / turbo
- Engine / equipment
- Hyundai and Kia 1.0 and 1.6 T-GDi direct-injection turbo petrol engines
- Period mentioned
- 2015 onwards
- Symptoms
- Loss of power, higher consumption, hesitation or rough idle, usually at high mileage.
- Possible cause described
- With direct injection, petrol does not wash the intake valves and carbon builds up on the injectors and intake. German guides mention it for the i20 III, Tucson IV and Picanto III (dirty injectors).
- Check for the garage
- Read misfire and fuel-trim codes; inspect the injectors and valves with a borescope; clean the intake if there are deposits.
- Cost cited in the source
- No verified estimate; ask the garage for a quote.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
Gebrauchtwagenberater: Hyundai i20 III, typical problemsGebrauchtwagenberater: Hyundai Tucson IV, typical problemsCarWiki: known problems of the Kia Picanto
View full entryEngines: 1.6 Hybrid (Hybrid) · Kona Electric (Electric)
Applies if: The notice does not name the version: confirm by VIN.
Battery wiring on the Kona II that can short-circuit after a crashElectrical and electronic systems
- Engine / equipment
- Second-generation Hyundai Kona
- Period mentioned
- 2023–2024
- Symptoms
- No symptoms in normal use; after an accident the battery wiring can short-circuit and overheat the engine bay.
- Possible cause described
- Austria’s ÖAMTC published the recall of 751 Kona built from 21/3/2023 to 5/1/2024: the garage reworks the battery wiring in about 30 minutes. In the US the 2024 Kona also had campaigns for a 12 V battery cable that could rub against a bracket.
- Check for the garage
- Check by VIN at the dealer that the campaign has been done.
- Cost cited in the source
- Free under the recall.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
View full entryEngines: Kona Electric (Electric)
Applies if: Only cars built from 5/10/2023 to 13/7/2024. Hyundai USA bulletin for a car built the same way for Europe; in Europe, ask Hyundai by VIN.
Charging on an AC charger stops or slows down (Ioniq 5, Ioniq 6 and Kona Electric, campaign 9B5)Electric charging
- Engine / equipment
- Hyundai Ioniq 6, Ioniq 5 and second-generation Kona Electric
- Period mentioned
- 2022–2024
- Symptoms
- When charging on an AC point (at home or on a 7–11 kW post), the session is interrupted or charging is slower than normal.
- Possible cause described
- According to Hyundai bulletin 24-01-051H-1 (campaign 9B5, September 2024), the car stops or reduces charging to avoid damaging the cable connection. The new logic of the charging manager (VCMS) makes it restart by itself and charge at full power again once things stabilise. It affects Ioniq 6 built from 14/12/2022 to 25/12/2023, Ioniq 5 from 4/10/2023 to 18/12/2023 and Kona Electric from 5/10/2023 to 13/7/2024.
- Check for the garage
- Check the build date and ask Hyundai by VIN whether the charging manager has the campaign 9B5 update. Also check that the cable and socket are not hot, dirty or damaged: if they are, do not charge until they have been checked.
- Cost cited in the source
- No parts cost: it is a software update; ask whether the warranty covers it.A rough figure from the original database, not an up-to-date quote.
Sources from the original database
View full entryEngines for this model
- 1.0 T-GDiPetrol
- 1.6 HybridHybrid
- Kona ElectricElectric