DETROIT -

Chrysler said Monday that they are adding more than 137,000 Jeep Liberties to an on-going safety recall.

The National Highway Traffic Safety administration website said that that lower control arms in the rear suspension of the Liberty can rust and break, possibly causing a crash.

The agency said Chrysler added the 2006 and 2007 model years to the recall which now totals nearly 347,000 vehicles.

The recall covers vehicles in 20 states and Washington, D.C., where salt is used to clear snow and ice from the roads.

Chrysler said in March that it was recalling about 200,000 Jeeps from the 2004 and 2005 model years for the same problem.

Chrysler said it will inspect the parts and replace them for free if needed and the company knows of no crashes or injuries from the problem.

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