General Motors' recall problems continue to mount. On Wednesday, the automaker announced it was recalling 218,000 additional vehicles from its Chevrolet Aveo line.

The daytime running light system in the dashboard of cars from the 2004 to 2008 model years can overheat, melt and cause fires, The Associated Press reports.

It's GM's 30th recall this year and follows Tuesday's recall of 2.42 million other vehicles.

"GM has recalled more cars this year than it has sold in several years combined," NPR's Renee Montagne said on Morning Edition, "and it's only May."

Actually, GM this month has recalled about 5.5 million cars and trucks. All told, the company has recalled 13.8 million vehicles since January at a total cost of $1.7 billion.

That's enough to wipe out much of the company's annual profits, according to The New York Times.

The recalls are an outgrowth of GM's stepped-up safety efforts — and increasing regulatory scrutiny — in light of its failure to report for years cars with faulty ignition switches that caused at least 12 deaths.

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