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Montana Wrote the Rules First: SB 67 Clears a Path for Level 4 RidesTen Seconds a Cab: Tesla’s Unboxed Line Is Built for SpeedIn Austin, Hail Is Already Live: Open the App and Call a CybercabTesla Maps Cybercab Stops Across Australia and New ZealandMontana’s First Cybercab Bid Starts With Six Cars in MissoulaChina’s First Look at Cybercab Comes With Addresses, Not FaresUnder Wraps in Sydney, the Cybercab Makes Its Australian DebutRobotaxi App Hue Matches Cybercab Lights So Riders Find the Right Gold CarAfter a Cybercab Ride, Conventional Cars Can Feel BrokenIn Berkeley, a Gold Cybercab Test Mule Wears a Bolted Cybertruck WheelComfort on the Curves: Cybercab Holds Mountain SwitchbacksRobotaxi Profits May Hinge on Cars Tesla Does Not OwnIn the Crash Lab, Cybercab Takes the Hits It Was Built ForAfter a Week of Cybercab, the Steering Wheel Feels StrangeIn the Crash Lab, Cybercab Takes the Hits It Was Built ForA Cybercab Turns Up Again on Seattle's South Lake Union StreetsNine Years Later: Tesla Starts the Clock on the Next RoadsterIShowSpeed Spots a Gold Cybercab With No One at the WheelMontana Wrote the Rules First: SB 67 Clears a Path for Level 4 RidesTen Seconds a Cab: Tesla’s Unboxed Line Is Built for SpeedIn Austin, Hail Is Already Live: Open the App and Call a CybercabTesla Maps Cybercab Stops Across Australia and New ZealandMontana’s First Cybercab Bid Starts With Six Cars in MissoulaChina’s First Look at Cybercab Comes With Addresses, Not FaresUnder Wraps in Sydney, the Cybercab Makes Its Australian DebutRobotaxi App Hue Matches Cybercab Lights So Riders Find the Right Gold CarAfter a Cybercab Ride, Conventional Cars Can Feel BrokenIn Berkeley, a Gold Cybercab Test Mule Wears a Bolted Cybertruck WheelComfort on the Curves: Cybercab Holds Mountain SwitchbacksRobotaxi Profits May Hinge on Cars Tesla Does Not OwnIn the Crash Lab, Cybercab Takes the Hits It Was Built ForAfter a Week of Cybercab, the Steering Wheel Feels StrangeIn the Crash Lab, Cybercab Takes the Hits It Was Built ForA Cybercab Turns Up Again on Seattle's South Lake Union StreetsNine Years Later: Tesla Starts the Clock on the Next RoadsterIShowSpeed Spots a Gold Cybercab With No One at the Wheel
Cybercab.News

Did you know · Production

No Brake Fluid: Cybercab Goes Fully Electronic

The two-seater is Tesla's first brake-by-wire car, with an actuator at each caliper and no hydraulic lines.

James Okonkwo, Production · Sept. 4, 2026 · 2 min read

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Factory robots over vehicle modules.
cybercab.news

Cybercab is the first Tesla with fully electronic brake-by-wire and no hydraulic brake fluid.

Each corner gets an actuator. The car drops the lines and plumbing that a conventional brake system carries around for the life of the vehicle. Musk has said electric brakes avoid that complexity.

A robotaxi that is supposed to run for 500,000 miles, Tesla's stated design life for the cab, does not want fluid to change, leak, or age. Steer-by-wire is part of the same design. There is no column to connect to a wheel that is not there.

ARK's Keeney listed the brake system with Unboxed production and the rare-earth-free motor as the hardware that makes a cheap mile possible. It is unglamorous. It is also how you build a cab that other people might buy.

James Okonkwo covers Gigafactory Texas, Unboxed production, and the hardware that makes a cheap mile.

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