Buick Lucerne

The defective ignition switch that led General Motors to recall an additional 3.4 million large sedans earlier this month was manufactured in China, according to a report filed with safety regulators obtained by Reuters.

The switches can be knocked out of the run position, much like those affecting the Chevrolet Cobalt and other GM small cars, turning off the engine and safety systems like the airbags. Unlike GM's previous ignition switch recall, though, this latest issue will see dealers simply modify the key rather than replace the ignition switch outright, despite the fact that the switches were "slightly" below torque specifications.

If what GM is claiming about this switch's origin is true, it'd mark the second high-profile recall of a part manufactured in China, following Aston Martin's (relatively) huge recall due to faulty accelerator arms in over 75 percent of the cars it had built since 2007.

For what it's worth, from our perspective, the link between the Aston plastics and this GM switch seems just a bit too tenuous for us to put a lot of stock in GM's problems stemming from the location of its parts supplier, especially when the related investigation into its corporate culture has resulted in so many other culpable actors.