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Physix Frontier · News Briefing Card (IT Home · Oct 15, 2026)

Tesla pushes FSD v14 Lite to Intel-chip HW3 Model S/X

KEY FACTS

  • Tesla is pushing FSD v14.3 Lite to HW3 Model S and Model X vehicles with Intel chips in North America.
  • This version is a distilled, stripped-down build of FSD v14, tailored to the memory-limited HW3 legacy onboard computer.
  • The update improves ramp merging, pedestrian recognition, traffic light handling, and the ability to respond to cut-in vehicles.
  • Older Model S and Model X vehicles lack Arrival Options, FSD start from park, and Auto Reverse features.
  • Tesla has confirmed that HW3 cannot support unsupervised FSD and cannot run the upcoming FSD v15.

KEY DATA

FSD v14.3 LitePushed Version
2026.38.5.1Software Update Package

PHYSIX OBSERVATION

HW3 legacy owners finally get the v14 branch, but the features are clearly cut down, and they are treated differently from Model 3/Y vehicles on the same chip. More critically, Tesla has already handed HW3 a death sentence: v14 Lite is the endpoint, and whether the promised hardware upgrade is honored will determine the ceiling of these owners' FSD experience.

Source: IT Home report