So my car starts to make an creaking/squeaking noise that is audible when the windows are down.

-You can hear intermittently when I coast through an alley at less than 5 mph to all the way up to 30-40 mph. I guess past that speed, its drowned out by engine and wind noise.

-Alot of times, it doesn't make any noise at all until at speeds as high as 40 until iI go over an uneven pavement (not bumps or potholes) or make lane change than it goes away.

-It also goes away when I apply the brakes

 

"Squeaky noises"? Usually that means that your control arm bushings are probably worn out, I have the same squeaky noise problem as well....And I know it's my worn out control arm bushings.

 

since u said the squeeks go out when u brake. that usually means you need new pads. check ur brake pads

 

Might also want to check into sway-bar bushings. Maybe the wax is worn out and the rubber bushings are causing the squeaking.

 

Had a similar problem I would check the sway bar bushings. This was the first thing I replaced and it fixed all my sounds.