Originally Posted by mputnik
so I hosed it down real good, undercarriage and all for a solid 5 minutes. It went away, only to come back the next day. Taking it to the dealer on Wednesday to se what gives.
That sounds like bushings. You soaked them so the water actually acted as a temporary "lube" but when it dried out the squawk came back. Probably the sway bar bushings. Tell the tech to check there and try some silicone grease there; a good tech will look at this first unless there's a TSB already.
EDIT: Wait a sec on my suggested diagnosis....does this squawk ONLY happen when you stop and then release the brakes to go (i.e. two times) but not when you are driving over undulating surfaces? If it ONLY happens when you brake at a stop and then release, that is just the sound of brake pad scrub on new brake lining. If that noise is ONLY when you stop and then release the brakes, try braking harder and hold until you are completely stopped and the quickly and full release the brakes and there should be no noise. Also, when stopped slowly release your brakes (like trying to creep along veeery slowly)...does the squawk noise occur? If it does, it's just your brakes still being broken in. Just try to make more "prompt" stops and not creep along with your brakes if this is the case and that squawk will go away when the brakes and rotors are completely mated. Sometimes weather can cause the noise if you brake very lightly at very slow, baby-crawl speeds.