Before going off to college, I had my car carefully inspected by a trusted mechanic whom I asked to inform me of any major problems. That is to say, the car has none now.
However, I just noticed (don't ask how I didn't notice before) that whenever I turn at a low speed, such as maneuvering in parking lots, there is a bit of squealing. Everything works perfectly, and the squealing isn't hideously loud-- it's just loud enough.
What might cause this, and how can I fix it?