DETROIT (CBSDFW.COM/AP) — First it was Korean automaker Kia, now a warning about fires and safety inside your home for some owners of Ram trucks.

The company that makes heavy-duty diesel Ram trucks is telling some owners to park them outdoors.

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Fiat Chrysler, now part of Stellantis, is recalling more than 20,000 of the trucks mainly in the U.S. and Canada. The company says the 2021 pickup and chassis cab trucks have heater electrical relays that can short, overheat and in rare cases cause fires. The fires can start even if the engines are turned off.

The company says it knows of three fires but no injuries. None involved customer vehicles. The recalled trucks are equipped with 6.7-liter Cummins diesel engines.

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Stellantis is developing a repair. The recall is expected to start April 30.

Owners can call the company’s customer service line at 800-853-1403 or check to see if their truck has been recalled online.

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(© Copyright 2021 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

CBSDFW.com Staff