As Ford issued a recall for more than 204,000 older SUVs, Chrysler Group announced two more recalls on Wednesday — campaigns that include more than 566,000 trucks and SUVs worldwide.

The larger of the Chrysler campaigns covers an estimated 381,876 trucks globally. The reason is to upgrade certain wiring-harness terminals, and if necessary, replace their fuel-heater housings.

Restricted to vehicles equipped with 6.7-liter Cummins diesel engines, Chrysler indicated the campaign follows an investigation of two cases in which fuel-heater housings showed signs of overheating.

“Chrysler Group is unaware of any incidents involving fire,” officials said. “Chrysler Group engineers discovered a terminal connector near the fuel heater may be subject to friction-induced corrosion. This condition may lead to overheating and potential fuel leakage.”

The company reiterated that it is unaware of any related injuries or accidents.

Chrysler said that service technicians will install new terminals made from upgraded material. The OEM added that fuel-heater housings will be inspected and, if they show signs of leakage, they will be replaced.

This work will be performed at no cost to customers, according to Chrysler.

Affected are certain Ram 2500 and 3500 pickups, and 4500 and 5500 chassis cabs from the 2010 through 2014 model years. An estimated 314,704 trucks are in the U.S.; 59,432 are in Canada; 1,803 are in Mexico and 5,937 are outside the NAFTA region.

Meanwhile,Chrysler also is voluntarily recalling an estimated 184,186 SUVs globally, to upgrade software that helps manage Electronic Stability Control (ESC).

Following an investigation prompted by field data, Chrysler Group engineers discovered a debris cover protecting a certain circuit board may inadvertently disrupt a communication line and disable ESC.

Like the truck recall, the company said it is unaware of any related injuries or accidents.

“The software upgrade restores proper communication and preserves ESC function,” officials said.

Chrysler indicated affected customers will be notified next month and advised when they may schedule service, the cost of which will be borne by the OEM.

The campaign covers certain model-year 2014 Dodge Durango and Jeep Grand Cherokee SUVs. An estimated 132,223 vehicles are in the U.S.; 8,871 are in Canada; 4,742 are in Mexico and 38,350 are outside the NAFTA region.

This particular model year has already been a part of two other recalls by Chrysler. Auto Remarketing shared details about a campaign connected to a component that manages restraint-system deployment as well as an alternator issue.

For any of these recalls, customers with questions can call Chrysler’s Customer Information Center at (800) 853-1403.

Ford Recall for Edge & Lincoln MKX

Ford issued a safety recall for 204,448 SUVs: the Ford Edge and Lincoln MKX from the 2007 and 2008 model years. The vehicles included in the campaign are in corrosion states and provinces in North America for possible corrosion under the reinforcement brackets where the fuel tank is mounted to the vehicle.

Affected vehicles include those that are currently registered or were originally sold in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia and Wisconsin, as well as in the Canadian provinces of New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island and Quebec.

Recalled vehicles include units built at Oakville Assembly from June 15, 2006 to Sept. 22, 2008. Ford is aware of 186,024 vehicles in the United States and federalized territories, and 18,424 vehicles in Canada.

“This condition may result in a fuel odor, fuel leak or potentially a check engine light. A fuel leak in the presence of an ignition source may result in a fire,” the company said. “Ford is aware of one fire that may be related to this condition, with no injuries and no accidents.”

The Blue Oval indicated franchised dealers will inspect the fuel tank and either replace or repair it at no cost to the customer.