Chrysler has scheduled overtime at its Dodge Ram truck plant in Warren, Michigan, and a plant in Toledo, Ohio, that makes the Jeep Wrangler sport-utility vehicle, said the person familiar with the plans. The minivan plant in Windsor, Ontario, has started operating with a third shift, the person said. This is a reversal from April when the Canadian Auto Workers union said the company would cut the shift and shed 1,200 jobs.