2003 Toyota 4Runner Owners Manual - Page 135

'03 4Runner_U (L/O 0208) D You may feel vibration or noise in your vehicle, caused by operation of the brakes. This indicates the system is functioning properly. The slip indicator light comes on for a few seconds when the ignition key is turned to "ON". If the indicator light does not come on when the ignition is turned on, contact your Toyota dealer. NORMAL DRIVING MODE Leave the system on during ordinary driving so that it can operate when needed. You may hear a sound in the engine compartment for a few seconds when the engine is started or just after the vehicle is started. This means that the traction control system is in the self-check mode, but does not indicate a malfunction. When the traction control system is operating, the following conditions occur: TRACTION CONTROL OFF MODE If your wheels get stuck in an ditch when you are driving on a severe off road and sand, turn off the traction control system. This system that controls engine performance may interfere with the process of freeing your wheels. To turn off: Push "TRAC OFF" switch. The "TRAC OFF" indicator light will come on. To turn on: Push "TRAC OFF" switch once again. The "TRAC OFF" indicator light will go off. D The system controls the spinning of the rear wheels. At this time, the slip indicator light blinks. 2003 4RUNNER from Aug. '02 Prod. (OM35795U) 135