VSC Warning Light Remains ON: Description
WARNING: This page is about a different car, the 2006 Lexus IS 350. 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 CAN and multiplex communications.
If the ECU stores DTC, the master caution indicator light will comes on and the DTC will be displayed on the multi information display in the combination meter.