In autonomous driving, vehicles can share information that cannot otherwise be detected via sensors or is not included in the driver's perspective. Vehicle-to-everything(V2X) has several advantages in enhancing the stability of autonomous driving; however, it is not known why artificial intelligence makes specific decisions. Therefore, when an accident occurs in an autonomous driving environment, it may be difficult to determine the cause of the accident. This study proposes a method to reproduce a specific state by using a log system optimized for the V2V component of the V2X technology. The proposed method applies a command and query responsibility system pattern to the existing log system to safely store and utilize basic safety messages used in the V2V.