The law firm that obtained a $1.6 billion civil settlement with Toyota over sudden-acceleration defects has filed a class action against General Motors Co. over its recall of 1.6 million vehicles for ignition switch defects.

Seattle’s Hagens Berman Sobol Shapiro, which filed the class action on Wednesday in U.S. District Court for the Central District of California, seeks to represent a nationwide class of consumers who purchased or leased the recalled vehicles. The suit was filed on behalf of a woman in Irvine, Calif., who owns a 2007 Saturn Ion Coupe.