what you can do to get this light off is while in motion at about 15 mph or less, holding the wheel straight ..shut the car off and restart it..and the system should reset..in my 1992 S C 400, ever since it has gotten cold out my check engine light comes on along with the warning light that reads "traction control OFF" when it should be on..this i was told is a safety feature from lexus that causes the car to lose power..and it is very annoying..somtimes its on ..somtimes its off..have no idea what to do ( any1 happen to have this same problem?) the best thing to do if you own an sc400 that is 6 years or older ir to make sure you garage it..especially during the winter...