finally maybe this will solve most of the questions to wind noise? After 3 years and couple months my prius in faithful service, i finally got by the wind noise everyone is talking about... At first, I suspected the license plate frame was the issue and also checking around the front end to see if there's are anything that stuck in the bumper gap, wheel wall, and underneath the car but the noise still there. Finally today...I do actually found it...I tested by either removing or putting on a new 3M tape over one of the screw hole underneath the door site mirror. Over time, some will peel off or break losses and the "gap" is the source for the high pitch noise when you driving fast enough on a road. Mine happen at around 55mph. Ever since I remove the sticker, the noise gone. One thing I'm not sure why there are factory stickers there. But I decided to remove it because I saw water inside the 3m tape after raining. Let me know if this fix you guys mystery noise.
finally maybe this will solve most of the questions to wind noise? After 3 years and couple months my red prius in faithful service, i finally got by the wind noise everyone is talking about... At first, I suspected the license plate frame was the issue and also checking around the front end to see if there's are anything that stuck in the bumper gap, wheel wall, and underneath the car but the noise still there. Finally today...I do actually found it...I tested by either removing or putting on a new 3M tape over one of the screw hole underneath the door site mirror. Over time, some will peel off or break losses and the "gap" is the source for the high pitch noise when you driving fast enough on a road. Mine happen at around 55mph. Ever since I remove the sticker, the noise gone. One thing I'm not sure why there are factory stickers there. But I decided to remove it because I saw water inside the 3m tape after raining. Let me know if this fix you guys mystery noise.