- Engine / equipment
- E-GMP electric cars: Hyundai Ioniq 5 and Ioniq 6, Kia EV6
- Period mentioned
- 2021–2025
- Symptoms
- Fault warnings, the car goes into limp mode and can lose drive power while moving; the 12 V battery runs flat.
- Possible cause described
- The ICCU, which charges the 12 V battery from the high-voltage one, can be damaged by voltage spikes and thermal cycling. In the US more than 200,000 cars were recalled: the ICCU and its fuse are checked and replaced if needed and new software is installed; some cars that had already been updated failed again.
- Check for the garage
- Check the ICCU campaigns and software by VIN; if the warning appears, find a safe place to stop and call for assistance.
- Cost cited in the source
- Free under the recall.A rough figure from the original database, not an up-to-date quote.
Integrated charging control unit (ICCU) that stops charging the 12 V battery
Sources are not verified in real time and no entry confirms that your car is affected.
Has this happened to you?
Anonymous answer, no personal data.
Frequently asked questions
How much does it cost to repair this fault?
Free under the recall.
A rough figure from the original database, not an up-to-date quote.
Calculate estimateHow is it checked?
Check the ICCU campaigns and software by VIN; if the warning appears, find a safe place to stop and call for assistance.
What are the symptoms?
Fault warnings, the car goes into limp mode and can lose drive power while moving; the 12 V battery runs flat.
Which cars and years does it affect?
- Brands
- Hyundai, Kia
- Engine / equipment
- E-GMP electric cars: Hyundai Ioniq 5 and Ioniq 6, Kia EV6
- Period mentioned
- 2021–2025
Taking it to a garage?
Models with this entry
- Hyundai Ioniq 52021–2026
- Hyundai Ioniq 62022–2026
- Kia EV62021–2026
Other entries for these makes
- Driver assistance that switches off at times because of an internal front camera faultKia
- Hard starting from the starter-motor freewheel (i10 II)Hyundai
- 12 V battery running flat on the Ioniq and NiroHyundai · Kia
- Electrical connections, automatic gearbox and timing belt on the Hyundai AccentHyundai
- Brake-light switch and fluid leak in the ABS module on the Carens IIIKia
- Warning light and braking affected by software on the e-SoulKia
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