This is the era of automobile revolution. People in old days looked for comfort luxury and economy, but now a day they are keener on safety. Safety places an important roll on the design and production of modern car. A lot of research and developments made in this field and hence a lot of safety devices are implemented on modern cars. In the two decades, automobile technology is evolved so much and, more and more safety systems have been incorporated into the car in an attempt to make them safer. Safety systems in automobiles are classified in to two o Passive safety system o Active safety system Active safety systems are those systems, which are active during driving and help in avoiding and preventing accidents. Passive safety systems get activated only at the time of an accidents and helps in ensuring safety to the occupants during the crash. Automobile technology continues to grow and evolve at an ever-quickening pace, and the changes that are coming will continue to challenge those, who have fix tomorrows automobiles. There are many safety features now available as standard equipment. Some of these include the electronics stability program (ESP), secure tyre system, Anti-lock braking system, airbags and seat belts. The number of automobile is growing rapidly and so do is the number of accidents. This paper tries to review the emerging safety systems that are incorporated in today?s automobiles to prevent accidents as well as ensure maximum safety to the occupants.