General Motors (GM.NYSE) announced in a filing with US safety regulators on Tuesday that a defective ignition switch was manufactured by Chinese-based Dalian Alps Electronics, Reuters reported. The switch was used in nearly 3.4 million Chevrolet Impala and Monte Carlo, Buick LaCrosse and Lucerne, and Cadillac DeVille and DTS cars that were recalled on June 16, marking the second time this year an auto manufacturer has discovered a problem with a China-made part. In February, British car maker Aston Martin recalled most of its sports cars built since 2007 after discovering a Chinese sub-supplier was using counterfeit plastic.