Volvo is recalling 30,929 Volvo S60 vehicles in the U.S. because drivers may not be warned of low oil pressure, according to the National Highway Traffic Safety Administration.

The recall, which affects vehicles released for the 2011-2012 model years, won't begin until December 31.

Affected vehicles were produced from June 22, 2010 through May 14, 2012, according to the NHTSA.

"In the affected vehicles, the vehicle may not alert the driver of a low oil pressure situation," said NHTSA in a summary of the issue.

If the engine oil pressure is too low, there will be no warning displayed in the Driver Information Module.

The S60 vehicles are equipped with five-cylinder engines.

Volvo dealers are being instructed to update the vehicle's software so that the consumers will be alerted if the vehicle's oil pressure is low.

"Without being warned of a low oil pressure situation, the driver may continue to drive the vehicle until it stalls, which increases the risk of a crash," said the NHTSA.

Owners with more questions can contact Volvo at 1-800-458-1552.

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