Hyundai now offers an “optional” Hyundai Ioniq 5 security upgrade in the UK. The £49 ($65) update includes new hardware and software to stop thieves using Game Boy-like devices to unlock and start cars without keys.
In recent years, Kia, Hyundai, and Genesis EVs have faced attacks from criminals using this tool. It exploits the wireless protocols in vehicles such as the Ioniq 5, original Kia EV6, and Genesis GV60. Hyundai says the upgrade improves protection against “evolving security threats.”
The decision has sparked criticism. Many owners argue that Hyundai should fix the flaw for free, especially since the brand offers a five-year warranty. The company has not announced a similar program for US models.
The handheld tool, built by European hackers, has been in use for at least five years. It looks like a Nintendo Game Boy but captures the signal from a car’s keyless entry system. When the driver touches the handle, the device intercepts the signal, cracks it, and sends a response to open the doors. The same process starts the engine in seconds.
These devices cost about €20,000 in Europe. They have helped steal Hyundai, Kia, Nissan, Genesis, and Mitsubishi cars. In 2024, the Ioniq 5 and Kia EV6 ranked among the UK’s most stolen vehicles.
Hyundai Motor Group has faced other security problems. In 2023, Hyundai and Kia agreed to a $200 million settlement over the “Kia Boyz” USB cable attack, which bypassed engine immobilizers. In 2024, researchers found a flaw in Kia’s web portal that let attackers unlock and start vehicles remotely.
Hyundai hopes this upgrade will reduce theft and restore confidence in its EV lineup. Still, many drivers believe the fix should come at no cost—especially when it addresses a long-known security weakness.
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