good question....I had wondered the same thing LOL

Sweet, I guess I should read that info instead of using the manual to balance my desk.....LOL

so i guess this would be helpful if you wanted to do a WICKED BURNOUT!

good call!

As I don't notice an detailed answer . . .
VSC-> Vehicle Stability Control (should be BSC-> Box Stability Control)
The VSC is there to keep the box under control.If you are driving hard, it should light up a yellow bulb on your dash.  It wants to keep you straight, so a sharp high-speed turn kicks it in.
If it beeps, you have pushed it to the very edge and the system is working to prevent the tail coming around on you.

The VSC automatically turns on when you start your box.

What it does is adjust braking and throttle to rebalance the box.
This is a VERY good thing, esp. on sudden mixed surface (leaves, dirt, or sand on road), hydroplaning, or other situations that try to make the vehicle to sudden strange and unfamiliar things.
If driving on a wet road, VSC can make the difference between controlled driving and spinning out your box completely (which could kill it).

So, why would you want to turn it of?

In certain situations, like on a sandy beach, dirty road, snow, etc., you need to wheels to slip and slide somewhat to keep moving.  So, you can turn the VSC system off to keep you from getting completely stuck.
However, it is a good idea to turn it back on as soon as possible, for it is extremely beneficial in the vast majority of conditions.

So with it off my car would no longer beep at me? And when I get into the car it goes to "On" always right? or is it still off if I left it on off when I turn the car off?

I wonder if you could by-pass it to be able to turn it on or off and have it stay that way? Its a drag when trying to merge from a stop only to have the traction control kick in and slow you down.