Tesla rolls out FSD v14.3.9 (2026.27.6) with Automatic Collision Evasion

Tesla has released FSD version 14.3.9 with Automatic Collision Evasion (ACE) for Hardware 4 vehicles, which actively takes control from inattentive drivers to prevent imminent collisions. The update also introduces improvements in neural network training, reaction times, and handling of driver assistance scenarios.

This Wire brief sits within Fusion42's coverage of Micromobility.