Mysterious Sound

[cool rod]

Hello. I was cleaning out my "21 Platinum Powerboost today to sell it and this sound started up. I wonder if anyone else has had it and what it was caused by. It only happens when the truck is operating, sitting or driving, it's silent when the truck is turned off. There are no messages on the DIC or on the center screen. I'd like to let this clip run longer but the server won't accept it. But I can say the chirping doesn't stop.

I'm perplexed!

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[Eskram]

Hmmm. It almost sounds like my radar detector, but I got nothing otherwise.

 

[cool rod]

Thanks. You were pretty close, it was the dash cam that I forgot to turn off. It's up behind the rearview mirror so the sound reflected from the windshield and seemed to come from the dashboard.

Cheers

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