A car security system is a comprehensive network of electronic and mechanical components which are designed to protect a vehicle from unauthorized access, theft, and vandalism. These systems typically include alarm sirens, immobilizers, keyless entry, central locking, motion detectors, and GPS tracking technologies. Car security systems function by detecting suspicious activities such as forced entry or vehicle movement and triggering alerts to deter intruders or notify the vehicle owner. As vehicle theft methods are evolving, modern security systems are being integrated with smart features such as biometric access, smartphone controls, and real-time tracking, making them essential for personal vehicle protection and insurance compliance.