Ford Motor Co. is recalling nearly 520,000 2013-15 model-year Ford Fusion and Lincoln MKZ cars, as well as some 2015 Ford Edge vehicles, in North American states and provinces that use road salt for snow removal.

Salt-related corrosion can cause steering gear motor attachment bolts to fracture, Ford said, and this can lead to the steering system defaulting to manual steering mode. As a result, the vehicle will become more difficult to steer, especially at lower speeds.

Ford said it isn’t aware of any accidents or injuries related to the condition.

Of the 518,313 vehicles covered by the recall, 487,301 are in the U.S. and federalized territories. A total of 31,012 are in Canada.

Vehicles included in this recall were either originally sold in, or are currently registered in, Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin.

Also included are the Canadian provinces of Ontario, Quebec, Prince Edward Island, Newfoundland and Labrador, Nova Scotia and New Brunswick.

Customers located in non-corrosion states or provinces will be covered by extended warranty if they experience similar concerns, Ford said.

Dealers will replace the steering gear motor attachment bolts with new bolts, seal them, and replace damaged steering gears at no cost to the customer.