In present world many people’s having their own Vehicles. Fuel is essential to run vehicle. The main aim of this paper is monitor fuel in vehicles and provides security to the vehicles. Vehicle tracking and accident alert system also implemented in this design. This system contains GSM module, GPS,IR sensor, Ultra Sonic sensor, Vibrate sensor, Fuel flow sensor, Arduino Mega, Motor and keypad. Fuel flow sensor is used to detect the amount fuel filling at petrol bunk and it will display filled amount of fuel on LCD. Ultrasonic sensor is used to measure fuel level in vehicle. GSM is used to send messages about fuel levels, vehicle location, security password and accident alerts. Whenever ignition will be ON, one time password (OTP) will be send to registered mobile number. After entered correct OTP using keypad, then only vehicle will starts. If anyone entered wrong password it will give an alarm. Vibration sensor is used to detect accidents to the particular vehicle. Whenever accident happens to particular vehicle it will send an alert message to the concerned persons about current location of the vehicle. Such that we can save many lives of peoples by intimating to the surrounding hospitals and higher authorities in proper time. In this design Arduino Mega is used as a controller