Tesla rolls out FSD v14.3.13 and FSD v14.3 Lite for HW3

Tesla is shipping update 2026.38.5.10 with FSD v14.3.13 and FSD v14.3 Lite for HW3 vehicles. The release includes an MLIR-based AI compiler and runtime with 20% faster reaction time, distillation of HW4 V14 intelligence into HW3, Automatic Collision Evasion and Halloween-themed modes.

• AI compiler and runtime rewritten with MLIR for 20% faster reaction
• FSD v14.3 Lite distills HW4 V14 intelligence into HW3 cars
• Automatic Collision Evasion engages FSD when driver is inattentive
• Adds Halloween Mode, Trick or Treat Mode and scheduled light shows