2007 Toyota 4Runner Owners Manual - Page 187

06 06.07 D You may feel vibration or noise in your vehicle, caused by operation of the brakes. This indicates the system is functioning properly. CY16063 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. The brake actuator temperature increases during continuous operation of the traction control system, the "AUTO LSD" system, the vehicle stability control system and the hill−start assist control system such as on slippery roads. If the brake actuator temperature becomes too high while any of the systems is operating, a buzzer will start to sound intermittently to indicate that the traction control system can no longer operate. In this case, immediately stop your vehicle at a safe place. If the system continues to operate, the buzzer sound changes from intermittent to continuous. (The continuous buzzer sounds for about 3 seconds.) At the time the slip indicator light will come on and the traction control system temporarily stops operating in order to protect the brake actuator. (Although the traction control system does not operate, there is no problem to continue your driving.) The system will be automatically restored after a short time and the slip indicator light goes out. 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 begins to move. 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: D The system controls the spinning of the rear wheels. At this time, the slip indicator light blinks. 2007 4Runner from Aug. '06 Prod. (OM35866U) 171