UPDATE 1-US opens probe into 3,322 GM Cadillac Lyriq EVs over loss of brake assist

The U.S. National Highway Traffic Safety Administration (NHTSA) said on Monday it has opened a preliminary evaluation to investigate claims related to loss of brake assist for 3,322 GM Cadillac Lyriq electric vehicles. The NHTSA said it received reports of a hard brake pedal, followed by a "Brake System Failure" message at start up or while driving. GM said the electronic brake control module has an internal spindle that can fracture during an anti-lock braking system (ABS) event, according to a NHTSA preliminary evaluation report.