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Dash Vibration

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Old Oct 10, 2012 | 01:21 PM
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Default Dash Vibration

I've been noticing a vibration sound from my dash whenever driving on the highway above 60 MPH or so. Almost sounds like a hum. It comes and goes oddly enough, but seems to stop if I put pressure with my hand on the dash close to the defroster grate.

Anyone else have this problem or an easy fix? Not really annoyed at it enough to have a dealer rip apart my interior.
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Old Oct 10, 2012 | 02:45 PM
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Default

Originally Posted by tlr3715
I've been noticing a vibration sound from my dash whenever driving on the highway above 60 MPH or so. Almost sounds like a hum. It comes and goes oddly enough, but seems to stop if I put pressure with my hand on the dash close to the defroster grate.

Anyone else have this problem or an easy fix? Not really annoyed at it enough to have a dealer rip apart my interior.
Yes, I had this problem on my 2012 GS...it turned out to be the cowling on the passenger side...plastic piece in front of the windshield...air gets under it and makes it hum...sounds like it is coming from the dash but actaully it is coming from outside...

Maybe someone has the link to the thread...my dealer fixed it with double sided tape...



Good Luck!
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Old Oct 10, 2012 | 03:28 PM
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Default

Originally Posted by N2TU
Yes, I had this problem on my 2012 GS...it turned out to be the cowling on the passenger side...plastic piece in front of the windshield...air gets under it and makes it hum...sounds like it is coming from the dash but actaully it is coming from outside...

Maybe someone has the link to the thread...my dealer fixed it with double sided tape...



Good Luck!
If it is the same issue as this, there is actually a GM TSB on the vibration... I had the issue as well, from what the TSB says, and from my own experience, the sound is usually greatly reduced when you put the A/C on "recycle" mode.

If that does happen to be the issue, any GM dealer with moderate Corvette traffic should know about it right away, if not, they should be able to look it up anyway.
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