Ford is recalling over 1.3 million vehicles mainly in North America to fix rear suspension and transmission control software problems.

The largest recall covers over 1.2 million Explorer SUVs from 2011 through 2017. Ford says a rear suspension toe link can break if the suspension moves a lot. That can limit steering control.

One customer reported running into a curb when a link broke, but Ford says it’s not aware of any injuries.

Dealers will replace the left and right toe links, which keep weight on the tires. The Explorer recall will cost Ford an estimated $180 million that will show up in the company’s second-quarter results, Ford said in a filing with U.S. securities regulators.