2007 Yaris 42000 Miles hatchback

[zoidberg444]

Originally Posted by thebarber

i'd bet one of the brake dust shields is coming in contact with the rotor. if you have alloy wheels you can bend it back with your hands. if you have steelies you can likely stick a rod or screwdriver thru the holes to push it back a bit.

I had exactly this symptom on my car. It started around December time. I drove my car through some pretty deep snow drifts. I can only get some snow or ice deformed the dust shield. I just bent it back when i did my 6 month service now that it warmed up. No more symptoms.