Cruise LLC, a subsidiary of General Motors, is recalling the automated driving software in 300 vehicles after one of its driverless vehicles collided with the back of a San Francisco bus.
According to the company, the March 23 collision was caused by a software error in a Cruise automated vehicle that incorrectly predicted the movement of an articulated San Francisco Municipal Transit Authority bus.
The collision caused moderate damage but no injuries.
According to a filing with the National Highway Traffic Safety Administration on Friday, Cruise updated the software on March 25 to address concerns that the system “may inaccurately predict the movement of articulated vehicles such as buses and tractor trailers.”
In a separate filing with California, Cruise stated that the vehicle was travelling on Haight Street when a bus stopped ahead of it, causing the Cruise to collide with the rear bumper.
Vogt stated, “The bus’s behavior was reasonable and predictable. It pulled out into a lane of traffic from a bus stop and then came to a stop. Although our car did brake in response, it applied the brakes too late and rear-ended the bus at about 10 mph.”
As the bus pulled out in front of the AV, the driverless vehicle’s view of the bus’s front section was completely blocked.
After the update, Cruise determined that the crash would not occur again. After a June crash in San Francisco that injured two people, Cruise announced in September that it recalled and updated software in 80 self-driving vehicles.
