You sure it isn't the ABS test it does at about 12MPH once each time the car is started cold?

 

+1 I intended to respond to this thread the first time i saw it. It definitely sounds like the ABS/VDC System check.

 

Idk. You'll hear something like air rushing which could be the abs, but it's immediately followed by the sound of rushing water for about 2 seconds.

 

Ok thanks guys! So how do I turn this ABS check system off or get rid of it. I just replaced my pads and rotors a little while ago so that might be the issue. Maybe I did something not knowing it?

 

Did some investigating on other threads about the same issue. So I guess there really isn't anything you can do about the noise. I looked up the ABS system check in the Infiniti handbook and it said its normal so thats good it's just an annoying sound. Thanks for the help everyone!

 

Sounds like the ABS self check to me.