The safety, who made 74 tackles in 2012, is entering the final year of his contract with the team.
The 33-year-old told NFL Network: "I've definitely let the team know I want to continue playing there. I'm also very comfortable with what's happened in my career and how long I've been able to play.
"I'm also actively working on setting things up for when I retire. Seeing what things I like to do and hopefully have those opportunities. I wouldn't necessarily say I'm concerned, but I would like to play. If I don't, I'm pretty happy how it went.
"To bounce around and try to go to all these different places and maybe play for one-year contracts here and there, that's not something I really want to do."
Clark joined the Steelers in 2006 after two-year stints with the Washington Redskins and New York Giants.