2007 Toyota Sequoia Owners Manual - Page 684

07 05.22 Vehicle stability control system The brake pad or actuator temperature increases during continuous operation of the active traction control system or vehicle stability control system such as on slippery roads. If the brake pad or actuator temperature becomes too high while the active traction control system or vehicle stability control system is operating, a buzzer will start to sound intermittently to indicate that the active traction control system can no longer operate. In this case, stop your vehicle immediately 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 "VSC TRAC" warning light will come on and the active traction control system temporarily stops operating in order to protect the brake pad. (Although the active 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 warning light goes out. If the light comes on while driving, the active traction control system does not work. However, as conventional braking operates when applied, there is no problem to continue your driving. In the following cases, contact your Toyota dealer: The vehicle stability control system helps provide integrated control of the systems such as anti −lock brake system, traction control, engine control, etc. This system automatically controls the brakes and engine to help prevent the vehicle from skidding when cornering on a slippery road surface or operating steering wheel abruptly. The vehicle stability control system is activated when the vehicle speed is more than the following speed. Two−wheel drive models: 15 km/h (9 mph) Four −wheel drive models: "2WD" or "4HI" mode 15 km/h (9 mph) "4LO" mode 30 km/h (18 mph) 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 system is in the self −check mode but does not indicate a malfunction. D The warning light does not come on after the ignition key is turned to "ON". D The warning light remains on after the ignition key is turned to "ON". D The warning light comes on while driving. The "VSC OFF" indicator light will come on when the "VSC TRAC" warning light comes on even if the center differential lock switch is not pushed. 188 2007 SEQUOIA from Aug. '07 Prod. (OM34462U)