Tesla IncTesla rolls out FSD Supervised v14.3.9, which can steer to avoid imminent collisions even without FSD engaged.

Tesla is rolling out software update FSD Supervised v14.3.9, which lets its vehicles activate on the driver's behalf and steer to avoid an imminent collision even if Full Self-Driving was never engaged. Tesla AI announced the rollout on Sep 4, 2026, saying the feature kicks in when Automatic Emergency Braking may not be enough, and Elon Musk amplified the post on Sep 14, 2026, reaching nearly 500,000 impressions. The push comes as paid FSD customers globally reached nearly 1.5 million, with active FSD subscriptions climbing 56% year over year to 1.48 million, and roughly 55% of Tesla's North American deliveries in Q2 2026 had an FSD subscription enabled at delivery. Two days before the retweet, on Sep 12, 2026, Musk endorsed Anthropic CEO Dario Amodei's call to slow AI development, a contradiction Barron's flagged in a headline noting Tesla stock dropped as Musk added to the chorus of AI concern. Tesla shares traded at $365.88 on Sep 14, 2026, down 18.64% year to date, with a market cap near $1.43 trillion and a P/E around 380. Open questions include the v14.3.9 rollout scope across trims, whether the intervention runs on cars that never enabled FSD, and any regulator notification.
Tesla IncTesla rolls out FSD Supervised v14.3.9, which can steer to avoid imminent collisions even without FSD engaged.