As electric vehicles (EVs) become an integral part of the global transportation ecosystem, the need for efficient and cost-effective maintenance solutions will rise. This paper explores the application of game theory, specifically reverse auctions, to establish a decentralized, driver-centric marketplace for EV maintenance, promoting sustainability. The proposed system enables EV drivers to act as price determiners by launching individual smart contracts, which serve as reverse auction platforms. Maintenance providers can then bid on these contracts, competing to offer the most cost-effective services. By leveraging blockchain technology, smart contracts ensure transparency, trust, and secure fund management throughout the process. This innovative approach empowers EV drivers, reduces maintenance costs, and promotes a competitive service market. The paper outlines the underlying mechanisms, system architecture, and potential benefits of this model, along with a discussion of its implementation challenges and future implications for the EV ecosystem.