Huang's widow, Sevonne Huang, and his family also sued the state's Department of Transportation for not maintaining the highway. The California Highway Patrol said Walter Huang was traveling south in the carpool lane when the Tesla crashed against a freeway barrier. The crash caused a fire. Rescuers were able to free him, but he died later at a hospital.
The family's attorney, B. Mark Fong, said Wednesday they are suing to help prevent "this tragedy from happening to other drivers using Tesla vehicles."