A driver assistance system for a vehicle, comprising: detection means for detecting the distance between an obstacle and a side of the vehicle, determination means for determining a turning degree angle of the vehicle, and processing means configured to: receive information indicative of the distance between the obstacle and the side of the vehicle from the detection means; receive information indicative of the turning degree angle of the vehicle from the determination means; calculate a risk of at least a portion of the side of the vehicle hitting the obstacle based on the distance between the obstacle and the side of the vehicle, the turning degree angle and the length of the vehicle, and activate means for averting the risk of hitting the obstacle, if the calculated risk is greater than a threshold value, characterized in that the means for averting the risk comprises a means for producing a first warning signal, indicating that the driver will have to either reduce the turning angle or reverse to find a better position to turn, and a second warning signal, indicating that there is no way of averting of hitting the obstacle by changing the turning angle. detection means for detecting the distance between an obstacle and a side of the vehicle, determination means for determining a turning degree angle of the vehicle, and processing means configured to: receive information indicative of the distance between the obstacle and the side of the vehicle from the detection means; receive information indicative of the turning degree angle of the vehicle from the determination means; calculate a risk of at least a portion of the side of the vehicle hitting the obstacle based on the distance between the obstacle and the side of the vehicle, the turning degree angle and the length of the vehicle, and activate means for averting the risk of hitting the obstacle, if the calculated risk is greater than a threshold value, characterized in that the means for averting the risk comprises a means for producing a first warning signal, indicating that the driver will have to either reduce the turning angle or reverse to find a better position to turn, and a second warning signal, indicating that there is no way of averting of hitting the obstacle by changing the turning angle. receive information indicative of the distance between the obstacle and the side of the vehicle from the detection means; receive information indicative of the turning degree angle of the vehicle from the determination means; calculate a risk of at least a portion of the side of the vehicle hitting the obstacle based on the distance between the obstacle and the side of the vehicle, the turning degree angle and the length of the vehicle, and activate means for averting the risk of hitting the obstacle, if the calculated risk is greater than a threshold value, characterized in that the means for averting the risk comprises a means for producing a first warning signal, indicating that the driver will have to either reduce the turning angle or reverse to find a better position to turn, and a second warning signal, indicating that there is no way of averting of hitting the obstacle by changing the turning angle.