Hyundai Corp is recalling 204,768 Elantras because of a power steering defect that might cause the cars to suddenly revert to manual steering, the company said Saturday in a report filed with U.S. auto safety regulators. The recall affects four-door Elantra sedans produced from June 1, 2008, to April 30, 2010, and 2009-10 model Elantra Touring hatchbacks, Hyundai said in a report on the National Highway Traffic Safety Administration website.