“Auto SOS: Smart Vehicle Safety System with instant Emergency Notifications” is a modern technology to propose an intelligent accident detection, location tracking and notification system to prevent accidents and reduce traffic hazards. By using an Accelerometer sensor and a GSM module, the system can detect accidents, and sends notification message to the nearest police control room, trusted contacts and hospitals. With the received information and data, the emergency services can find the shortest route of the accident spot and take initiatives to speed up the rescue process.