Trufant carried a $10.13 million salary-cap figure for 2012.
Drafted by Seattle with the 11th overall pick in 2003, Trufant started all but one of the 124 regular-season games he played with the Seahawks. He also started all nine postseason games he played with the team.
He finished his career with Seattle with 21 interceptions -- returning two for touchdowns. Trufant was voted to the Pro Bowl after recording a career-high seven interceptions during the 2007 season.
Trufant appeared in four games during the 2011 season before being placed on injured reserve on Oct. 17.
The Associated Press contributed to this report.