remat457 Posted December 11, 2009 Share Posted December 11, 2009 Ok, when I got the 350 earlier this year there was no road noise. Mid-year I noticed a little bit of whistling around the window at highway speed, but the road had to be flat (hahaha...not much of that around here), no rain (good luck here) or traffic (again haha). I took it to the dealer and they said they couldn't duplicate the problem. It could only be heard on the driver's side not the passenger. Well, now I can hear it pretty much all of the time as long as the above conditions are met. Everytime I bring the car there are not ideal conditions so I don't have them check. Opinions? Is this normal, or should I definitely have it checked? I bothers me that the passenger side is still perfect.... thanks Quote Link to comment Share on other sites More sharing options...
forourspam Posted January 3, 2010 Share Posted January 3, 2010 I have the same issue on my '10 IS350. It is a high pitched whistle that can only be heard on smooth surface at high speed. I guess that's the downside of having a quiet car. ;) Quote Link to comment Share on other sites More sharing options...
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