General Motors says a defective ignition switch linked to the recall of almost 3.4 million cars was made in China, where another car maker discovered a problem part earlier this year. The No. 1 U.S. automaker said in a filing with U.S. safety regulators that the switch used in the Chevrolet Impala and Monte Carlo, Buick LaCrosse and Lucerne, and Cadillac DeVille and DTS cars recalled on June 16 was made by China-based Dalian Alps Electronics. The switch problem is similar to the defect linked to at least 13 deaths in an earlier recall of 2.6 million Chevy Cobalts, Saturn Ions and other cars that led to a record U.S. fine of $35 million and numerous federal and state investigations. In both cases, the ignition switch can be jarred out of the "run" position and potentially affect power steering, power brakes and air bags. In the most recent switch recall for the Impala and other cars, GM said it was aware of eight crashes and six injuries, but no deaths.