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I get that too - very high pitched (maybe 12,000 Hz) but not higher. Kids can hear higher Hz levels than older folks.

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Mine is about 9k-10k I think .. mostly on regen coasting/breaking <40mph

This and Bluetooth static are on volt case# 71-128754793. My daughter and I can hear it .. my wife can't (and she's the one always asking me if I'm deaf!) LOL

Angelo
 

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Afternoon EVolt3163,

If you could PM me as well with the last 8 of your VIN and the best way for you to be reached I will have your Advisor contact you too.

-Ian Chevrolet EV Customer Service
Ian, I'm bringing in my volt on Monday for this exact issue and the Bluetooth static issue. Did anyone find/resolve OPs issue and document so I can mention to my service rep?

Thanks

Ang
 

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I drove my friend's Volt (first production run version) and it has the noise even louder than mine .. and he can't hear it (but he plays in a rock band LOL)

The service manager couldn't hear it .. but then the mechanic/tech could on test drive. I took the car back home without them addressing it as they said they need to huddle with the Chevy techs (but they DID fix the static using handsfree bluetooth!)

My tone is 11,500Hz. Here is a free iPhone app that you can dial in and match your frequency while actually in the car!

https://itunes.apple.com/us/app/tone-generator/id457003837?mt=8

Also, if you want to do it from your desk .. use this ..

http://plasticity.szynalski.com/tone-generator.htm

If we can get a consensus on the exact frequency, maybe they can use that info to find the culprit.

Ang
 
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