A “particularly dangerous situation red flag warning” - a relatively rare alert - remains in effect across Los Angeles.

This time around, NHTSA is investigating whether GM did enough in a recent recall of eAssist-equipped models, namely the 2013 Chevrolet Malibu Eco and the 2012-2013 Buick Regal and LaCrosse.

U.S. automobile safety regulators are closing their preliminary investigation into General Motors' Cruise robotaxis without taking further action.