On October 14, 2025, it was reported that nearly 4,500 Tesla vehicles in South Korea have experienced significant battery system malfunctions, leading to charging failures. The issue, primarily affecting Model 3 and Model Y vehicles, has prompted South Korea's Environment Ministry to demand a resolution, warning that continued inaction could jeopardize government subsidies for Tesla. This news has negatively impacted consumer sentiment, contributing to a decline in the market price for used Model 3 and Model Ys in the country since August. The battery management system (BMS) error has led to consumer outrage, particularly as it was revealed that over half of the battery replacements were with reused, not new, batteries. This development adds to the challenges Tesla faces in the region, including an 8% year-over-year decline in third-quarter deliveries in the highly competitive Chinese market. An investigation by a law firm into potential breaches of fiduciary duties concerning Tesla's autonomous driving technology was also announced.