the basis of the principle that the inventor can define the appropriate concept of a term in order to describe his her own present disclosure in the best way it should be construed as meaning and concepts for complying with the technical idea of the present disclosure accordingly the embodiments described in the present specification and the construction shown in the drawings are nothing but one form of the present disclosure and it does not cover all the technical ideas of the present disclosure thus it should be understood that various changes and modifications may be made at the time of filing the present application in addition detailed descriptions of functions and constructions well known in the art may be omitted to avoid unnecessarily obscuring the gist of the present disclosure referring to fig2 to 5 the method for restart when ssc is released according to the embodiment of the present disclosure includes a step s 100 of determining whether a traveling vehicle satisfies a condition for releasing ssc after entry into ssc a step s 200 of determining whether emergency startup of the vehicle is required when the traveling vehicle satisfies the condition for releasing ssc after entry into ssc and a step s 300 of performing a first startup process in which a clutch.