NHTSA Opens Audit of About 1,000 Tesla Cybercabs as Austin Service Starts

Tesla has begun commercial Cybercab deployment in Austin, but its purpose-built robotaxi now faces a federal audit of the safety-compliance case behind its design.

The immediate constraint is not a finding of noncompliance. It is a review of the evidence Tesla used to certify a vehicle whose passengers cannot take over with conventional controls. That places the company’s technical justification, rather than the early Austin fleet’s size, at the center of the federal action.

The case Tesla must support

The National Highway Traffic Safety Administration has opened an audit involving about 1,000 Tesla Cybercabs. The agency will examine the process and technical data Tesla used to claim that the vehicle complies with federal motor-vehicle safety standards.

The audit also covers the basis for Tesla’s certification and how the company concluded that certain Federal Motor Vehicle Safety Standards were not applicable. That makes the inquiry a review of Tesla’s compliance rationale, not merely a look at the Austin service’s early operations.

NHTSA has not announced a conclusion. But the scope identifies a specific decision Tesla made in bringing the Cybercab forward: which federal requirements it believed applied to the vehicle, and which it believed did not.

No driver fallback inside

NHTSA said the two-seat Cybercab has no permanently attached conventional manual controls: no steering wheel, brake pedal, accelerator pedal, or mirrors. The agency’s standards-applicability question is therefore tied directly to the vehicle configuration Tesla is putting into commercial deployment.

The September 3 rollout put dozens of the vehicles onto Austin streets, according to the Associated Press. With no steering wheel or brake pedals, passengers have no conventional way to assume control in an emergency, making the Cybercab a different operating proposition from a self-driving car that retains driver hardware.

420Tesla autonomous vehicles registered in Texas

Texas state records listed 420 autonomous vehicles registered to Tesla on the morning of publication.

45Cybercabs included in that total

The registered-vehicle total included 45 Cybercabs. Registration figures are not the same measure as the approximately 1,000 vehicles in NHTSA’s audit.

From controlled cars to a dedicated robotaxi

Tesla’s Austin robotaxi service has operated since June 2025 with cars that kept steering wheels and brake pedals. It later expanded to five other cities in Texas and Florida; passengers initially rode with safety drivers who could take over. The Cybercab deployment removes that physical fallback from the vehicle itself.

Tesla began commercial deployment of a small number of Cybercabs in Austin on September 3. The company said it planned to expand gradually to additional vehicles and locations, while the Texas registration figures provide a separate snapshot of vehicles registered in the state rather than a count of the fleet covered by the audit.

A scale race with a safety case attached

Tesla has more than 200 unsupervised robotaxis across its Texas and Florida cities, according to RobotaxiTracker, as cited by the Associated Press. AP reported that Waymo has more than 4,000 such vehicles in 14 cities. The figures frame Tesla’s planned Cybercab expansion against a rival already operating a substantially larger driverless fleet.

The companies also use different sensor approaches, according to AP: Tesla relies on cameras, while Waymo and Zoox combine cameras with radar and lidar, a laser-based sensing technology. NHTSA’s audit does not compare those systems; it focuses on Tesla’s certification process and the technical data behind it.

Tesla did not immediately respond to a request for comment. NHTSA has set out the certification questions it will examine; the agency has not announced a conclusion from the audit.