GM has announced it is recalling 511,508 Chevrolet Camaro cars, mostly in North America, after finding a fault with the ignition system.

The carmaker said a driver’s knee could bump the key fob and turn it out of the “run” position, causing a loss of power.

General Motors said the fault had led to three crashes, causing four “minor” injuries.

In March, GM recalled 2.6 million small cars because of a faulty ignition switch linked to 13 deaths.

GM is recalling 511,508 Chevrolet Camaro cars after finding a fault with the ignition system

In May, the carmaker was fined $35 million for failing to address different defects which have been linked to 13 deaths.

GM has recalled more than 13 million cars in the US this year – more than the carmaker sold in 2013.

In addition to Chevrolet Camaro recall, GM also announced it was recalling 28,789 Saab 9-3 convertibles from the 2004-2011 because of concerns over front seat belt failures and 21,567 Chevrolet Sonic cars from 2012, because of concerns over a transmission fault.

GM is also recalling 14,765 of its 2014 Buicks, because of fears over an electrical wiring fault.

Previous recalls have involved possible faulty seat belts, transmissions and air bags, as well as potential fire issues.

“The Camaro ignition system meets all GM engineering specifications and is unrelated to the ignition system used in Chevrolet Cobalts and other small cars included in the ignition switch recall,” GM said in a statement.

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