2003 Toyota Sienna Owners Manual - Page 154

03 SIENNA_U (L/O 0207) Vehicle skid control system In the following cases, contact your Toyota dealer: The vehicle skid control system helps provide integrated control of the systems such as an anti −lock brake system, brake assist system, traction control, engine control, etc. This system automatically controls the output of the brakes or engine to help prevent the vehicle from skidding when cornering on a slippery road surface or abrupt steering wheel operation occurs. This system activates when the vehicle speed is about more than 15 km/h (9 mph). "VSC" warning light This light warns that there is a problem somewhere in the traction control system or the vehicle skid control system. The light will come on when the ignition key is turned to "ON" and will go off after a few seconds. If the light comes on while driving, the system does not work. However, as conventional braking operates when applied, there is no problem to continue your driving. 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 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. 154 2003 MY SIENNA (OM45410U)