2006 Toyota Sienna Owners Manual - Page 436

06 SIENNA_U (L/O 0603) "TRAC OFF" indicator light comes on for a few seconds when the ignition key is turned to "ON". It will come on again when you push the "TRAC OFF" switch to turn off the system. In the following cases, contact your Toyota dealer: D The indicator light does not come on when the ignition key is turned "ON". D The indicator light remains on after the ignition is turned on. D The indicator light comes on with the TRACTION CONTROL OFF MODE If your wheels get stuck in a ditch when you are driving on a severe off road and sand, turn off the traction control system. This system that controls engine performance interferes with the process of freeing your wheels. To turn off: Push "TRAC OFF" switch. The "TRAC OFF" indicator light will come on. The vehicle stability control system is always activated, even if the traction control system is turned off. To turn on: Push "TRAC OFF" switch once again. The "TRAC OFF" indicator light will go off. normal driving mode while driving. "VSC" warning light This light warns that there is a problem somewhere in the traction control system or the vehicle stability 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. 204 2006 SIENNA from March '06 Prod. (OM45443U)