Tesla Cybercab Ditches Brake Lines and Fluid: How Does It Actually Stop?

Tesla’s upcoming two-seat Cybercab takes a radically different approach to vehicle control. Unlike conventional cars, it lacks a steering wheel and pedals entirely, which forced engineers to rethink how braking and steering are managed. Notably, the vehicle does not use traditional brake lines or brake fluid, according to InsideEVs.

Instead, the Cybercab relies on an electro-mechanical braking system, where electric motors handle the braking force at each wheel. This setup eliminates the need for hydraulic fluid and the associated plumbing, simplifying the architecture and potentially reducing maintenance.

Steering is similarly handled by wire, with no mechanical connection between a steering wheel (which doesn’t exist) and the front wheels. The entire driving experience is orchestrated by the vehicle’s autonomous software, which sends electronic commands to the braking and steering actuators.

This design aligns with Tesla’s vision for a fully autonomous, purpose-built robotaxi. By removing human controls and traditional hydraulic systems, the Cybercab aims to be more efficient, lighter, and easier to manufacture at scale. However, the shift to brake-by-wire and steer-by-wire raises questions about redundancy and fail-safes, though Tesla has not yet detailed its specific safety measures.