Whenever any obstacle is detected in the vehicle in operation depends on the distance that automatically controls the speed of the vehicle. The driver in the sleeping / drowse position the eye blink sensor detects the eye blinking is not more than 30 sec eye closed vehicle stop the automatically, it is not manual. Give alarm to the driver's alert. The ultrasonic sensor system continuously sends signals and monitors from any car or other obstacles in front of the car. The distance to which the ultrasonic sensor can work can be up to 4 meters. When any obstacle or vehicle detected by the ultrasonic sensor system will send the signal to the built-in board. After receiving this signal the built-in board sends a signal to the motor to automatically reduce the speed of the car which can control the speed of the car immediately. The vehicle is automatically controlled without any manual operation when the vehicle is 4 meters away from the front vehicle. Also give alarm to alert the driver. Many motorway accidents are occurring because of the nearby race of vehicles. If the front driver of the vehicle slows down or pauses applied, then it is very difficult for the next driver of the vehicle to control his vehicle, resulting in accident . To avoid this type of accident, the alarm system, which contains the alarm system and display can be arranged at the rear of each vehicle. If there is a short circuit in the detection of the smoke sensor of the engine part and alerts the driver and stops the vehicle.