Hyundai Kona OS EV Recall R/2026/128: Some Vehicles Fitted With A High Voltage Battery May Have Internal Cell Voltage Deviation, Who Is Affected And What To Do
- Urgent
- How serious
- 4 May 2026
- Launched
- 25,056
- vehicles in the UK
- 61D004
- Manufacturer’s campaign code
Hyundai recalled Kona OS EV vehicles built between 24 January 2018 and 15 July 2023. Some vehicles fitted with a high voltage battery may have internal cell voltage deviation. The recall notice describes the fix as: hyundai has launched a Safety Recall to update the battery management system (BMS) software. You won't usually pay for it.1
What’s Wrong
Some vehicles fitted with a high voltage battery may have internal cell voltage deviation. If this occurs it may result in the risk of an electrical short circuit inside the battery. Until the high voltage battery software has been updated we recommend the vehicle to be parked in a well ventilated area. The vehicle can be used as normal.
DVSA's Original Wording
Concern: Some vehicles fitted with a high voltage battery may have internal cell voltage deviation Defect: Some vehicles fitted with a high voltage battery may have internal cell voltage deviation. If this occurs it may result in the risk of an electrical short circuit inside the battery. Until the high voltage battery software has been updated we recommend the vehicle to be parked in a well ventilated area. The vehicle can be used as normal. Remedy: Hyundai has launched a Safety Recall to update the battery management system (BMS) software.
Contains public sector information licensed under the Open Government Licence v3.0.
The Risk
If the fault occurs, the recall notice says it could result in the risk of an electrical short circuit inside the battery.
The Fix
The recall notice describes the fix as: hyundai has launched a Safety Recall to update the battery management system (BMS) software. The fix is a software update, which usually takes under an hour at the dealer.
Are You Affected?
Kona OS EV built between 24 January 2018 and 15 July 2023 may be included. Hyundai estimates 25,056 vehicles in the UK. Enter your registration to check, then confirm by VIN with Hyundai, because not every car in the date range may be included.
Which Car Is It?
Choose the make and model so we can match recalls to your car.
What To Do Now
- Check your car by registration above, then by VIN with Hyundai.
- Book with any franchised Hyundai dealer, quoting the campaign code 61D004 or the DVSA reference R/2026/128. See how to get a Hyundai recall fixed.
- Follow the letter's instructions until the repair is done. See can you drive a car with a recall?.
Related Recalls
| Launched | Vehicle and fault | Severity | Reference |
|---|---|---|---|
| Kona OS EVSubject vehicles may experience a loss of coolant within the electronic power control unit | Low | R/2023/134 | |
| Ioniq 5Some vehicles may have a potential issue with one module within the high voltage battery which may have been manufactured with misaligned electrodes | Urgent | R/2026/319 | |
| Inster AX EVThe vehicle three-way coolant valve may become defective during the vehicle operation | Urgent | R/2026/267 | |
| Ioniq AE EVSome vehicles fitted with a high voltage battery may have internal cell voltage deviation | Urgent | R/2026/159 | |
| Ioniq 6The vehicle charge port door outer panel may detach | Urgent | R/2025/457 |
This is one of 102 Hyundai recalls in DVSA’s data. The Hyundai recall launched before it was R/2026/093 on 6 Apr 2026, for the vehicle fuel pump may have an internal malfunction which may fail over time. The one launched after it was R/2026/159 on 15 Jun 2026, for some vehicles fitted with a high voltage battery may have internal cell voltage deviation. You can also see every Hyundai recall, the Hyundai Kona recall history, all recalls launched in 2026 and high-voltage battery recalls across every make.
Source: DVSA recall R/2026/128, launched 4 May 2026. Data updated 15 October 2026. How we grade urgency.
Sources
- The Code does not itself say repairs are free. GOV.UK guidance says "You will not usually have to pay for any repairs or parts under a safety recall." gov.uk Checked 15 Oct 2026.