FJ Cruisers from the 2007 through 2013 model years are included in the recall.
Toyota said the driver and front passenger seatbelts are mounted on the vehicle's rear doors. If the doors are closed forcefully over a period of time, cracks can form in the door panel around the seatbelt retractor and the retractor can become detached.
Toyota said it has received no reports of injuries due to the defect.
Toyota said Friday that will notify owners soon by mail. The company will repair the vehicles for free.