Washington ? Toyota Motor Corp. said Friday it was recalling 600,000 Sienna minivans sold in the United States to address potential rusting spare tire cables that could break and create a road hazard in the latest safety problem to strike the beleaguered automaker.

Company leaders vowed to respond quickly to the safety concerns.

Toyota said its latest recall covered the 1998-2010 model year Siennas with two-wheel-drive that have been sold or registered in 20 cold-climate states and the District of Columbia. Kansas is not among them. Toyota said rust from road salt could cause the carrier cable that holds the spare tire to rust and break, allowing the tire to tumble into the road. The problem could threaten the safety of other drivers.

Toyota said it was unaware of any accidents or injuries. The National Highway Traffic Safety Administration said it had received six complaints of spare tires falling off Siennas.

The company said it was working on a fix for the problem. In the meantime, customers will receive a notice telling them to bring their vehicle to a dealership for an inspection.