WASHINGTON--The U.S. Department of Labor is investigating Hyundai Motor Co. and one of its suppliers for illegal use of child labor at factories in Alabama.

TOKYO—Toyota Motor Corp will change the way it pays factory workers, focusing on their performance rather than their seniority. Toyota’s new arrangement, designed to attract young talent, will apply to about 40,000 employees, or about 60 percent of its workforce.

TORONTO—The Canadian Auto Workers has temporarily suspended negotiations with GM over a new contract for hourly workers at the carmaker’s CAMI assembly plant.

WARREN, MI—Chrysler has fired a worker here who helped organize a demonstration two weeks ago to protest a controversial new work schedule.