Mislead often implies that the deception is unintentional, while deceive suggests a more deliberate attempt to mislead.
Here's an example:
* Mislead: "The map misled me, and I ended up going in the wrong direction." (The map was faulty, not intentionally designed to trick the person.)
* Deceive: "The salesman deceived me by claiming the car was brand new, when it was actually used." (The salesman deliberately lied about the car's condition.)
While the words are often interchangeable, the nuance of intention can sometimes make one word a better choice than the other.