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Hello. Can anyone provide an opinion on what that whirring sound is that I hear seemingly coming from the rear brakes (or rear of car) when I depress the start button to start the ignition? The sound lasts at most for 3 to 4 seconds. I "suspect" that it has something to do with the braking system that kicks in, or releases on start-up. I don't know whether it is a new noise or one that I am aware of now that the weather is warm and my windows are open on start-up. Thank you for your input.
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