What type of power steering fluid does the 2003 chevy 2500hd use?

The 2003 Chevy 2500 uses ATF max life power steering fluid. It is important to keep Your power steering fluid filled so that You do not lose any power steering while driving because that lead to a dangerous situation where it is difficult to steer. I recommend that You check Your power steering fluid levels every time that You change Your oil to make sure that it is still full. If You happen to notice any leaks I do recommend that You replace the component that has failed. Do not mix different types of power steering fluid as well because that can lead to damage to the pump or steering box.