Lower than a day after one in all its driverless taxis collided with a hearth truck in a San Francisco intersection, Cruise agreed on Friday to a request from state regulators to chop in half the variety of automobiles it was working within the metropolis.

The setback for the driverless automotive firm got here only a week after the California Public Utilities Fee voted to permit the growth of driverless taxi companies from Cruise, which is owned by Normal Motors, and its rival Waymo, which is owned by the Google mother or father firm Alphabet.

On Friday, the California Division of Motor Automobiles, which regulates the security of the driverless vehicles, requested Cruise to half the variety of automobiles it was working in San Francisco. The Cruise car’s collision with a hearth truck the day earlier than had injured a passenger within the driverless automotive. Earlier within the week, one other Cruise car acquired caught in newly poured concrete on one other metropolis avenue.

Cruise didn’t instantly reply to a request for remark.

The corporate, which now has 400 automobiles working in San Francisco, could have not more than 50 driverless vehicles working throughout the day and 150 at night time.

Final weekend, about 10 Cruise automobiles stopped functioning in the course of a busy avenue in San Francisco’s North Seashore neighborhood, blocking site visitors for quarter-hour. Drew Pusateri, a spokesman for Cruise, mentioned in a press release that the vehicles had problem connecting to the Cruise workers who might need guided them out of the way in which due to a spike in mobile site visitors attributable to a music competition within the metropolis’s Golden Gate Park about 4 miles away.

A number of different Cruise automobiles additionally stalled in streets close to the park.

One week in the past, the C.P.U.C. allowed each firms to cost for rides across the clock wherever in San Francisco. The C.P.U.C. and the D.M.V. are the 2 businesses governing autonomous automobiles in California. An organization has to acquire a allow from the D.M.V. earlier than it applies for driverless deployment permits — the type that Cruise and Waymo acquired final week — from the utilities fee.

The motor automobiles authority mentioned in a press release that it’s “investigating latest regarding incidents involving Cruise automobiles in San Francisco.” The company requested Cruise to chop the variety of automobiles working in San Francisco “till the investigation is full and Cruise takes applicable corrective actions to enhance street security.”

“The DMV reserves the precise, following investigation of the details, to droop or revoke testing and/or deployment permits if there’s decided to be an unreasonable threat to public security,” the company mentioned in its assertion.

San Francisco officers have complained since January that autonomous automobiles have been interfering with emergency automobiles. Earlier than this week, officers documented 55 incidents the place a driverless automotive abruptly stopped or interfered with emergency automobiles, together with one occasion with firefighters who have been battling a home fireplace.

On Wednesday, metropolis officers filed an injunction asking the C.P.U.C. to quickly halt the driverless taxi growth. Neither firm has detailed how they plan so as to add to their driverless taxi companies.