NEW YORK (AP) - Goodyear is recalling six versions of its Wrangler Silent Armor tires over concerns that the tread could separate from the tire and cause accidents.

Goodyear Tire & Rubber Co. said Saturday that the separation could happen under what it called "severe usage conditions." Goodyear says the separated tread could strike the car and damage it or cause a tire failure.

Goodyear says the recall affects about 40,000 tires made in 2009, including 27,000 in service. It says it will replace the recalled tires with new ones.

The tires are designed for trucks, vans and SUVs. Goodyear says it will notify owners and replace the tires for free. The recall will start by March 22.