(AP) - Of the nearly 50 self-driving cars rolling around California roads and highways, four have gotten into accidents since September.
That's when the state officially began permitting the cars of the future, which use sensors and computing power to maneuver around traffic.
Three accidents involved souped-up Lexus SUVs run by Google Inc. The fourth was an Audi retrofitted by the parts supplier Delphi Automotive.
Google and Delphi said the accidents were minor and their cars were not at fault.
The state Department of Motor Vehicles would not comment about fault, saying the accident reports it received are confidential.
The Associated Press learned that two of the cars were in self-driving mode, while the two other times the person who must sit behind the wheel was in control.