Rear-view systems are safety features in vehicles designed to help drivers see what is behind them when reversing. These systems typically include a rearview camera and sometimes sensors that detect obstacles. The camera displays a live video feed on a screen inside the vehicle, providing a clear view of the area behind the car. In addition to cameras, some rear-view systems use ultrasonic sensors to alert drivers of nearby objects through visual or audible warnings. This technology enhances safety by reducing blind spots and helping to prevent accidents while backing up, making it easier for drivers to navigate tight spaces.