2005 Toyota Tundra Owners Manual - Page 192

'05 TUNDRA_U (L/O 0408) 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. When the traction control system is operating, the following conditions occur: The brake actuator temperature increases during the traction control system, vehicle stability control system or "AUTO LSD" system operating. 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. D The system controls the spinning of the rear wheels (two−wheel drive models) or 4 wheels (four −wheel drive models). At this time, the slip indicator light blinks. Without tachometer 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. With tachometer 192 2005 TUNDRA from Aug. '04 Prod. (OM34427U)