VSC OFF Indicator Light Remains ON: Description
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
The skid control ECU is connected to the combination meter via the CAN and multiplex communication systems
Pressing the VSC OFF switch turns off traction control and pressing and holding this switch turns off traction and VSC controls If VSC control is turned off, the VSC OFF indicator light will come on.