The recall affects Sedona minivans from 2006 through 2012. They were sold or registered in 20 states and Washington, D.C., where salt is used to clear roads in the winter.
The National Highway Traffic Safety Administration says the lower control arms near the wheels can rust and break due to salt exposure.
Kia dealers will inspect the parts and rustproof or replace them for free starting next month.
The recall covers vans in Massachusetts, Maryland, Michigan, New Hampshire, New York, Pennsylvania, Vermont, Wisconsin, Connecticut, Delaware, Iowa, Illinois, Indiana, Maine, Minnesota, Missouri, New Jersey, Ohio, Rhode Island, West Virginia or the District of Columbia.