Traction Control = VSC??
 

Do Traction Contral and VSC mean the same thing? My 2011 RX350 window sticker listed VSC but did not list Traction Control. I noticed that I can diable Traction Control by pusing the TRAC OFF button once, and if I hold down the same button for 3 seconds, I will disable both Traction Control and VSC with separate indicators on the dash. What is the difference between a vehicle running with both Traction Control and VSC turned on, and another vehicle running only with VSC on and Traction Control off?