AUBURN HILLS, Mich. — Chrysler Group is recalling about 67,900 Jeep Wranglers in the U.S. because of a risk of fires, the National Highway Traffic Safety Administration, or NHTSA, said on its website.

AUBURN HILLS, Mich. — Chrysler Group is recalling about 67,900 Jeep Wranglers in the U.S. because of a risk of fires, the National Highway Traffic Safety Administration, or NHTSA, said on its website.

The recalls affect only 2010-model Wranglers with automatic transmissions. The transmission skid plate, which is close to the catalytic converter, can collect debris and can ignite without warning, NHTSA said on its site, which said Chrysler reported the recall on May 15.

Chrysler said it will replace the skid plate with a skid bar free of charge.