Tesla Semi Spotted With FSD Testing Equipment [VIDEO]

Tesla’s latest steps toward autonomous heavy freight were spotted on public roads: a refreshed Tesla Semi was seen carrying data-gathering hardware, indicating the company is collecting ground-truth data to train Full Self-Driving (Supervised) for the truck.

The sighting was shared in a video by @teslaownersSV on X. The truck was reportedly driving near Tesla’s Fremont, California, factory with its "roof loaded with ground truth validation equipment." The post also noted washers for the Semi’s extensive camera suite.

Caught the new Tesla Semi testing in Fremont today — roof loaded with ground truth validation equipment, full camera suite with washers, and it’s already ‘autonomy ready.’

The future of freight is getting closer! 🔥🚛 pic.twitter.com/UjDkAA1nLl

— Tesla Owners Silicon Valley (@teslaownersSV) June 27, 2026

Built for Autonomy

When Tesla introduced its new Class 8 electric truck design last fall, it was described as autonomy-ready. It features 10 external cameras and an interior cabin camera. Today those sensors support safety features such as automatic emergency braking and lane-keep assist, and the newly observed validation rig suggests active development toward enabling FSD (Supervised) on the Semi.

As customer deliveries expand from the dedicated Semi factory in Nevada, the two available configurations compare as follows:

A New Cabin Experience

The latest Semi incorporates updates informed by real-world logistics feedback. The driver sits centrally with two 16-inch touchscreens, integrated wireless phone chargers, and relocated cup holders that are easier to reach during long shifts. Tesla also redesigned the side windows from the previous generation so drivers can more easily reach outside the cabin when interacting with guard shacks or checking mirrors.

On low-friction surfaces such as icy roads, the Semi performs favorably thanks to its Vehicle Dynamics Control (VDC) software, which prevents jackknifing. While there is no official timeline for when the Semi will receive FSD, the presence of validation vehicles on public roads is a major step. Training the neural networks to manage a vehicle weighing up to 82,000 lbs requires significant data, and that groundwork appears to be underway.