Any one want to comment on how the dealer would DIAL-IN max cooling command so they can hear the noise ?
I for one don't want to be the first person to aim the heat-shrink gun at the air inlet temp sensor.
There is still a possibility of a fan hitting something at high RPM but that sound is east to detect.
There is a forum post on the sounds the volt can make - There must be a few smartphone Sound APP's that monitor sound dB level that would help.
2012 RED Volt VIN:#C-8860 - Premium Leather Seats Jet Black with Dark Trim, Rear Camera & Park Assist, Nav
09/29/2011 Ordered -- 11/15/2011 took it home