More than 340,000 Ram trucks are being recalled due to a fire risk.

Owners of the affected vehicles are being encouraged to park outside because an electrical connector issue could cause a fire. Six potentially related fires have been reported, including one that occurred when the owner shut off the engine.

The automaker said it is unaware of any related injuries or accidents.

The recall covers certain Ram 2500 and 3500 pickups and Ram 3500, 4500 and 5500 chassis cab trucks from the 2021 through 2023 model years.

All have 6.7-liter Cummins diesel engines with older heater-grid connectors, the company said.

Stellantis, formerly Fiat Chrysler, said it will begin notifying owners by letter in March. For now, owners can see if their vehicle is part of the recall by visiting mopar.com/recalls or nhtsa.gov and inputting their vehicle identification number (VIN).