The system, called "System and Method for Determining a Driver Retirement Score", continuously monitors driver behaviour to create objective assessments of driving ability. This addresses a growing challenge as the number of licensed drivers aged 65 and older in the United States has increased by 77% over two decades, reaching nearly 52 million in 2022.

GM's comprehensive approach goes far beyond traditional driving assessments. The system tracks multiple indicators, including reaction times, signs of visual strain, fatigue levels and compliance with traffic rules. It also monitors whether other drivers frequently honk at the vehicle, suggesting problematic driving behaviour.

The technology can detect gradual changes in driving performance that could escape human observation, analysing patterns over months or years. Once analysed, the system generates a detailed report with specific recommendations and can alert designated family members about concerning scores.

The patent filing acknowledges that "deciding to retire from driving a vehicle can be difficult, as driving can provide a sense of freedom". This technology aims to replace emotionally charged family arguments with objective, data-driven discussions about road safety.

Currently, seniors account for 19% of traffic fatalities despite representing a smaller portion of total drivers. However, advanced safety features can significantly benefit older drivers – side airbags reduce fatalities by 45% for drivers over 70, compared to 30% for younger drivers.

GM has not confirmed commercial plans for the system, and critics have raised privacy concerns given the company's history of sharing driving data with insurance companies. Questions remain about preventing age-based discrimination and ensuring the technology serves families rather than creating new barriers.

The automotive industry increasingly focuses on driver monitoring technology, with various manufacturers developing systems to detect declining driving skills. As populations age globally, such objective assessment tools could help balance safety concerns with elderly drivers' independence and dignity.

Success will depend on careful implementation that respects privacy rights while providing families with the objective data they need to make informed decisions about driving retirement.