According to Sawyer Merritt, Tesla has officially notified U.S. customers that free Full Self-Driving (FSD) software transfers will end on March 31, 2026. This is the first time Tesla has provided a specific deadline, moving away from previously vague quarterly timelines (Sawyer Merritt, Twitter). This clear-cut policy change signals a strategic shift in Tesla's AI-driven autonomous vehicle business, potentially accelerating FSD adoption and increasing future revenue from FSD software sales. The move underscores the growing commercial importance of AI-powered driver assistance and highlights a tightening of Tesla's value proposition for its AI software ecosystem.