what is vsc system
You will have to get the error codes read. That's the only way to narrow down the problem. Here is a link with a short video on the VSC system... http://www.toyota- global.com/innovation/safety_technology/safety_technology/technolog y_file/active/vsc.html
Link may be too long to work. Just Google VSC system. Plenty of explanations on what it's all about. Many things can make the light come on as far as error codes.
vehicle stability control.
Looking for a Used RX 400h in your area?
CarGurus has 515 nationwide RX 400h listings starting at $5,500.
Search Lexus RX 400h Questions
Are you a UK consumer? CarGurus now has a discussion forum in the UK.
Lexus RX 400h Experts