Originally posted by On Your Left
Glad to hear the "thud" is common - I guess I'm glad. I noticed the thud at times right away and wondered what it was.

Has anyone heard a humming from the back that speeds and slows with VX?
JT
Yes "Thud" is common especially when unexpected braking occurs.
Got the "Humming" sound when I first got my VX. Dealer could not find anything wrong.

Fix: Install Subwoofers