The club announced Friday it has signed the veteran long snapper to a one-year contract that will bring Warren back for a 12th season in 2016.
Warren is one of four Steelers remaining from the team that won the franchise's fifth Super Bowl title after the 2005 season. Warren hasn't missed a game in six straight years and served as the long snapper this season for kicker Chris Boswell, who set a club record for field goals made by a first-year player when he made 29 of 32 attempts.
The 34-year-old Warren signed with the Steelers in April, 2005 as an undrafted rookie free agent.