The integration of Internet of Things (IoT) sensors into modern vehicles is fundamentally transforming the landscape of automotive safety. These advanced sensors enable vehicles to monitor their environment, interact with one another, and offer real-time feedback to drivers and automation systems. The result is not just smarter cars, but safer roads for everyone. Through a combination of data analytics, autonomous technologies, and instant alerts, IoT sensors are redefining how we prevent accidents, respond to hazards, and protect passengers and pedestrians alike.