2008 Toyota Tacoma Owners Manual - Page 204

08 02.19 When the traction control system is operating, the following conditions occur: D The system controls the spinning of the LS17007b rear wheels (two−wheel drive models) or 4 wheels (four −wheel drive models). At this time, the slip indicator light blinks. 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, it is no problem to continue driving.) The system will be automatically restored after a short time and the slip indicator light goes off. With rear differential lock: However, it is a normal operation for the light to be on with rear differential locked. At this time, the traction control system does not operate. 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 engine switch is turned to "ON". If the indicator light does not come on when the engine switch is turned on, contact your Toyota dealer. The brake actuator temperature increases during continuous operation of the following systems under conditions such as on slippery roads. NORMAL MODE Leave the system on during the 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. D D D D Traction control system "AUTO LSD" system Downhill assist control system Hill −start assist control system 180 2008 TACOMA from Apr. '08 Prod. (OM35898U)