I understand that the VDC should be shut off for hard accelration, but when I forgot, I heard a clunck from the rear end. Is this normal when the VDC (or TCS) engages? Thanks...

 

i got to test out the VDC on stock tires in an inch of snow and it kinda sounds like your antilock breaks sound when you slam on them that kinda jutter sound and most of the slowing down for the VDC should come from the front of the car since it effects your front wheels.

http://www.nissanusa.com/vehicles/Mo...,30382,00.html

check out the info on the VDC on this site it kinda explains where this is applied.

Hope this helps