Report: 74 deaths may be tied to GM defect

A man walks past cars parked outside a shopping mall in Alhambra, California, including a Chevrolet Silverado pickup truck from General Motors on left on May 16, 2014.  The US auto safety regulator Friday imposed a record $35 million fine on General Motors for its failure to promptly recall cars with ignition faults linked to at least 13 deaths. General Motors has issued yet another recall on its 2014 Chevrolet Silverado and GMC Sierra pickups, this time for a steering issue that could cause a sudden crash. AFP PHOTO/Frederic J. BROWN        (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
A man walks past cars parked outside a shopping mall in Alhambra, California, including a Chevrolet Silverado pickup truck from General Motors on left on May 16, 2014.  The US auto safety regulator Friday imposed a record $35 million fine on General Motors for its failure to promptly recall cars with ignition faults linked to at least 13 deaths. General Motors has issued yet another recall on its 2014 Chevrolet Silverado and GMC Sierra pickups, this time for a steering issue that could cause a sudden crash. AFP PHOTO/Frederic J. BROWN        (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

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    Report: 74 deaths may be tied to GM defect

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GM pushes back on Reuters report that found 74 deaths may be tied to defect. CNN's Poppy Harlow reports.