Ford Motor Co. is recalling 5,536 2015-2016 model-year Lincoln MKC SUVs and 2016 Ford Explorer SUVs in the U.S. and Canada so dealers can address an underhood fire risk associated with the block heaters.

The engine block design, coupled with the particular block heater installed in these vehicles, creates an overheating risk when the vehicle is parked and the block heater is plugged in. This condition increases the risk of an underhood fire, the automaker said.

Dealers will remove the heaters and replace them with an updated design to resolve the issue, Ford said. If needed, they will also replace the cords. There will be no charge for this service.

Ford noted it’s aware of two reports of underhood fires in Canada, but the company isn’t aware of any accidents or injuries related to this issue.

The recall covers certain Lincoln MKC SUVs built at Louisville Assembly Plant from Nov. 25, 2013, through Jan. 25 of this year, as well as certain 2016 Ford Explorer SUVs built at Chicago Assembly Plant from Oct. 20, 2014, through Jan. 28 of this year.

The recall includes 3,129 2015-2016 Lincoln MKC SUVs and 2,407 2016 Ford Explorer SUVs. A total of 1,543 of the affected vehicles are in the U.S. and federalized territories, while 3,993 are in Canada.