Tesla Model S and Model X with HW3: FSD V14.2 Lite rollout

© A. Krivonosov

Owners of older Tesla Model S and Model X cars have finally started to see the FSD V14 branch, but only in early access for now. According to owner reports tracked by software-monitoring services, a small number of Hardware 3 cars have received software 2026.27.10 with FSD (Supervised) V14.2 Lite. A broad rollout to regular customer cars has not started.

This is an important difference from Model 3 and Model Y: the lighter V14 branch reached those cars earlier in the summer, while the flagship S/X models remained on the older branch. The limits of HW3 have long been discussed by owners against the backdrop of Tesla's earlier autonomy promises.

The update brings part of the HW4 V14 work to the less powerful HW3 hardware through model distillation. The release notes cite improvements to merging and navigating forks, interactions with pedestrians and traffic lights, smoother steering and more stable lane centering, as well as parking, un-parking, reversing and Arrival Options.

There is an important limitation. Public Teslascope data for version 2026.27.10 and release-note databases still show V14.2 Lite primarily on HW3 Model 3/Y cars. For that reason, its appearance on Model S/X is better treated as Wave1 testing rather than the start of a full-scale rollout.

Older hardware also does not receive every HW4 capability. Automatic Collision Evasion remains a feature of newer hardware in this branch. In other words, moving Model S/X to V14 Lite narrows the software gap but does not remove the hardware limits of HW3.

The next checkpoint will be HW3 Model S/X appearing in broader 2026.27.10 adoption statistics, or in a newer build, followed by installations on regular customer cars outside early access.