KARR security and SWDS dealer-installed alarm devices have a Bluetooth car hack vulnerability affecting 2.2 million vehicles. A firmware update patches the aftermarket security flaw.
Could a small device hidden beneath your dashboard make your car easier to break into? Nancy from Newtown, Pennsylvania, asked me where she should look for the KARR or SWDS "code" in her 2025 Cadillac XT5 and 2024 Hyundai Tucson Limited Hybrid.
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