This research aims to analyze the synergy between customary law and positive law in realizing restorative justice in the settlement of traffic accident violations. Traffic accidents not only result in legal consequences for the perpetrators but may also cause losses to victims and disrupt social relations within the community. A normative juridical approach is applied to examine the legal framework governing traffic accident violations, the position of customary law in the Indonesian legal system, and the application of restorative justice as an alternative approach to dispute resolution. The research findings indicate that customary law contains settlement mechanisms based on deliberation, reconciliation, compensation, and restoration of social harmony, which are in line with the fundamental principles of restorative justice. Meanwhile, positive law provides a formal legal framework for the settlement of traffic accident cases and the implementation of restorative justice within the criminal justice system. The synergy between customary law and positive law can strengthen the settlement of traffic accident violations by integrating community-based approaches with formal legal mechanisms, provided that such integration remains consistent with legal certainty, justice, human rights, and applicable statutory provisions. This research recommends strengthening the integration of customary dispute resolution mechanisms into the implementation of restorative justice through clearer legal arrangements, institutional coordination, and community involvement to achieve a settlement that emphasizes restoration, reconciliation, and social harmony.