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The development of intelligent driver assistance mechanism ensures safety and comfort of passengers, the intelligent braking and maneuvering mechanism is proposed by transforming the anti-lock braking technology for a four wheeled vehicle. This paper presents an active safety mechanism which incorporates both steering and braking assistance system in a maneuvering vehicle. The algorithm of collision avoidance mechanism is featured and interfaced in an intelligent vehicle with short range radar to assist driving system of host vehicle based on predicted motion of sensed obstacles. The developed system will be activated for obstacles in front of the host vehicle within critical risk level. The intelligent braking mechanism plays a pivotal role at the time of emergency situation depending on the predicted collision time and relative velocity between host and target, it also provides assistance to avoid panic situation for driver.