—Due to the importance of security for Vehicular Ad-hoc NETwork (VANET), Security Credential Management System (SCMS) and Secure Vehicle-to-Everything (V2X) commu- nication are surveyed in this study for SCMS researchers. This study designs sequential prompts that are presented in Section II to supervise ChatGPT for generating the reviews of SCMS and secure V2X. The hot research topics of security and privacy in V2X communications, authentication and access control in V2X networks, key management in V2X networks, and security and privacy in SCMS have been summarized and discussed. Finally, the limitations of SCMS and secure V2X are also surveyed for indicating the future work. Index Terms —Security credential management system, SCMS, secure V2X, ChatGPT I. I NTRODUCTION The objectives of a Security Credential Management System (SCMS) and Secure Vehicle-to-Everything (V2X) communica- tion are to provide secure and trusted communication between vehicles and infrastructure components, to manage the distri- bution of security credentials, and to ensure the authenticity and integrity of the information exchanged between devices. Provide secure and trusted communication between vehicles and infrastructure components: The first objective of SCMS and Secure V2X communication is to provide secure and trusted communication between vehicles and infrastructure components in a connected vehicle environment. This is achieved by implementing strong authentication and encryp- tion mechanisms, and by ensuring that only authenticated and authorized devices are granted access to the communication network [1], [2]. Manage the distribution of security credentials: Another objective of SCMS and Secure V2X communication is to manage the distribution of security credentials, including the issuance, renewal, and revocation of security credentials. This is necessary to ensure that the security credentials are up- to-date and valid, and that any compromised or unauthorized credentials are promptly revoked [3], [4]. Ensure the authenticity and integrity of the information exchanged between devices: The final objective of SCMS and Secure V2X communication is to ensure the authenticity and integrity of the information exchanged between devices. This is accomplished through the use of security measures, such as digital signatures and encryption, which ensure that informa- tion is not tampered with or altered during transmission [5], [6].In summary, the objectives of SCMS and Secure V2X com- munication are to provide secure and trusted communication between vehicles and infrastructure components, manage the distribution of security credentials, and ensure the authenticity and integrity of the information exchanged between devices. These objectives are crucial for the secure and efficient func- tioning of connected vehicle environments. SCMS and secure V2X are important issues to build secure communications in Vehicular Ad-hoc NETwork (V ANET), so this study reviews and summarizes the hot research topics of SCMS and secure V2X to obtain a guildline for SCMS and secure V2X beginners. For surveying the relevant studies, Robot Sam Chang supervises ChatGPT (i.e. an intelligent content generator) [7] to write the major contents of this manuscript through sequential prompts. The contributions of this study are summarized as follows. •For generating the major contents of this manuscript, Robot Sam Chang proposes and creates original sequen- tial prompts to write the surveys of SCMS and secure V2X through ChatGPT. •For correcting the generation contents from ChatGTP, Robot Sam Chang rewrites the generation contents and removes the incorrect contents. •For highlighting the contributions from Robot Sam Chang, the abstract, Section II and Section IX of this manuscript are written by Robot Sam Chang. Nine sections are described in this manuscript. The proposed sequential prompts are shown in Section II for generating the surveys of SCMS and secure V2X by ChatGPT. The overview of SCMS and secure V2X including four research directions is presented in Section III, and the detailed hot topics of each research direction are summarized in Sections IV , V , VI, and VII. Moreover, Section VIII discusses the limitations SCMS and secure V2X for future work. Finally, the conclusions of this study are illustrated in Section IX. II. M ETHOD This study uses sequential prompts to generate the contents of each section through ChatGPT. The used prompts for each section are listed as follows. •Section I is generated based on the prompt ”Please sum- marize the objectives of security credential management system and secure V2X, and please present each objective in detail with citations; furthermore give some