There's an intermittent squeaking noise coming from the right-front passenger side of the dash, which is where the blower motor is located. It seems to happen more often in cooler weather/winter. It's like a very soft squeak that gets faster as you increase the fan setting. Not very noticeable unless you have good ears. The sound comes and gos. Because it doesn't happen often I don't think it's worth the time and effort repairing (and money).