U.S. safety regulators are investigating whether to add more than a million General Motors midsize cars to a recall for brake light problems.
The National Highway Traffic Safety Administration says it's checking into complaints about the 2004 to 2011 Chevrolet Malibu and the 2007 to 2009 Saturn Aura.
In 2009, GM recalled about 8,000 Pontiac G6 midsize cars from the 2005 model year. The government announced in February that it's investigating whether to add 550,000 G6s sold from 2005 to 2009. The safety agency says the brake lights may not come on when the pedal is pressed, or the lights illuminate for no reason.
Now the agency is investigating 97 complaints from Malibu and Aura owners about the same problems.
GM says it has no reports of crashes or injuries.
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