Update: Cruise updates software for autonomous vehicles after SF injury crash

SAN FRANCISCO -- An autonomous vehicle run by  Cruise LLC got into a crash in San Francisco injuring two people and causing the company to update software and recall 80 vehicles.

The San Francisco-based unit of General Motors says the crash happened June 3. The company says it filed recall paperwork at the request of federal safety regulators and to be transparent with the public

In documents posted Thursday by the National Highway Traffic Safety Administration, Cruise said one of its vehicles was making an unprotected left turn at an intersection when it was hit by an oncoming vehicle.

The oncoming vehicle was in a right turn and bus lane when it switched lanes and went straight, hitting the right rear of the Cruise car. The document says police found the other vehicle was the party most at fault for the crash.

People in both vehicles had apparent minor injuries, and the Cruise car suffered major damage and was towed away, according to a report Cruise filed with the California Department of Motor Vehicles.

"This is a recall for a prior version of software and does not impact or change our current on-road operations," Cruise said in a statement Thursday.

Cruise began charging passengers for robotaxi rides in the Bay Area in June after getting approval from California regulators.

The company says in the documents that the software update will prevent similar crashes in the future. This was the first crash in more than 123,000 unprotected left turns made before the software change, the documents said.

Cruise, a majority-owned subsidiary of GM, said the autonomous vehicle's software determined that it needed to brake hard to avoid colliding with the oncoming Toyota Prius, which it predicted would make a right turn into the robotaxi's path. The Prius was traveling about 40 miles per hour (64 kilometers per hour) in a lane with a 25 mph speed limit, the documents said.

"The Cruise AV (autonomous vehicle) had to decide between two different risk scenarios and chose the one with the least potential for a serious collision," the company said in NHTSA documents.

The crash forced the Cruise fleet to stop making unprotected left turns until the software update was sent out on July 6. It also limited the areas where the vehicles could travel.

The new software improves the vehicles' ability to predict where other vehicles will travel, "including the conditions similar to the singular, exceptional event that is the subject of this filing," Cruise said in the documents.

The updated software would have picked a different path and avoided the crash, the company said in NHTSA documents.