UNITED STATES -- General Motors is recalling nearly half a million Chevrolet, Pontiac and Saturn cars due to a transmission problem. According to GM, the issue can cause the cars to roll away unexpectedly.

The recall affects 2007 to 2010 Chevrolet Malibus, Pontiac G6s and Saturn Auras in the U.S., Canada and Mexico. All of the cars have four-speed automatic transmissions.

According to GM, part of the transmission cables can break, which causes the shifter to show that the car is in park when really, it is in gear. GM says they know of four crashes that have been linked to this problem, but there have been no injuries.

Dealers are now fixing the end of the cables or replacing them. Owners will receive a letter telling them to set up an appointment with their dealer.