This work presents an IoT based electric vehicle safety system focused on fire prevention and multiple fault detection. The proposed system continuously monitors critical parameters including battery temperature, voltage, current, smoke, and gas leakage to identify abnormal operating conditions at an early stage. A microcontroller processes sensor data and triggers protective actions such as battery isolation, cooling activation, and alarm generation when unsafe thresholds are exceeded. Real time data is transmitted to a cloud platform for remote monitoring and instant alerts through a mobile application. The system enhances vehicle reliability, reduces fire risk, and supports predictive maintenance and reliability enhancement, thereby improving overall safety and user confidence in electric vehicles.