So yesterday i noticed that when i was lettin the car go on its own( didnt hit the gas/break pedal) kind of rollin, i could hear a squeaky noise from time to time coming from the rear of the car. however whenever i press the gas pedal theres no noise at all, it only occurs if the car is goin about 5-15mph or less than that. Also whenever im parking and hit the R it gets louder. it only occurred louder. im wondering what can that be, i just checked my car last week, it was all good, i replaced front breaks, rear ones were only lightly used, so they are almost new. Its not that its too noticeable, its just its annoyin n i hate that kind of squeaky sound.

 

Could be the parking brakes?