The 27-year-old told the team's website: "In my career, I found out that anything can happen. Just because a team looks like they can have backs, I'm assuming here they didn't expect to go 0-6, either.
"Things happen and you have to rebound from that, and we just have to take it one game at a time right now. If I can get back into shape and learn the small things on third down and stuff like that, I feel like I really can [help the team].
"It's good to finally get another opportunity. I felt the past couple of years I really haven't had an opportunity to show what I can do and I think I'm going to get my shot, so I better do it well."
Hillis rushed for 1,177 yards during the 2010 season, but has only one other year over 500 yards since joining the league in 2008.