Ford is exploring an innovative way to protect drivers from one of the most common vehicle crimes: catalytic converter theft. A recently published patent details a new audio-based detection system that could identify theft attempts by recognizing the unique sounds associated with tampering.

The patent, filed on December 21, 2023 and published on September 9, 2025, outlines a system that uses onboard microphones to listen for specific audio signatures. Once detected, the vehicle would analyze the sound to confirm that it isn’t caused by normal activity — like maintenance or nearby noise — before escalating the alert.

If confirmed as a theft attempt, the system could notify the vehicle owner in real time, or even contact authorities depending on the situation. This proactive approach would make it far more difficult for thieves to remove catalytic converters undetected, especially from vehicles like the Ford F-Series pickups, which remain top targets for this type of crime.

In a statement, Ford emphasized that patent filings are a normal part of the company’s innovation process, noting that “submitting patent applications protects new ideas and helps us build a robust portfolio of intellectual property.” Ford also clarified that not every patent reflects immediate production plans — but it does signal where the company’s technology is headed.

With catalytic converter thefts still a widespread concern across North America, this kind of smart audio technology could give Ford owners extra peace of mind. Whether or not it reaches production, the idea showcases Ford’s ongoing commitment to innovation, security, and customer protection.