The Traction control system is designed to be turned off once by pressing the button. This allows you to "heat up" the tires if you'd like and have a little kick to the side. Then the system resets it self back to on.
To turn off the system, you have to have the vehicle on, and in park. Then press and hold the trac button to you see both yellow lights come on.
This turns the traction control and Vehicle Stability Control off until you turn off the car.
McGrath Lexus of Chicago
1250 W Division St
Chicago IL 60622