Tesla Patent Turns Cars into Earth‑Based GPS Satellites for Full Self‑Driving

Tesla has filed a patent that could change how its Full Self‑Driving (FSD) system navigates. Instead of relying solely on global positioning satellites, the technology would use other vehicles on the road as moving reference points, effectively turning them into a ground‑based GPS network. This approach aims to improve location accuracy where satellite signals are weak or blocked, such as in urban canyons or tunnels.

The patent describes a method where cars share their positions and sensor data to create a real‑time map that helps each vehicle pinpoint its exact location. By treating other cars as dynamic landmarks, the system reduces dependence on traditional GPS and could enhance the reliability of autonomous driving. Tesla’s idea is to make the fleet itself a cooperative positioning system, where every car contributes to and benefits from the network.

While Tesla has not publicly commented on the patent, the filing highlights the company’s focus on solving edge cases in autonomy. If implemented, this car‑to‑car positioning could complement existing sensors like cameras and radar, making FSD more robust without extra infrastructure. The patent was spotted by Teslarati, which noted its potential to turn ordinary vehicles into Earth‑based satellites for navigation.