2009 Toyota Matrix Owners Manual - Page 386

2-4. Using other driving systems CAUTION n When VSC is activated The slip indicator light flashes and a warning buzzer sounds. Always drive carefully. Reckless driving may cause an accident. Exercise particular care when the indicator light flashes and a buzzer sounds. n When TRAC and VSC are off Be especially careful and drive at a speed appropriate to the road conditions. As these are systems to ensure vehicle stability and driving force, do not turn off TRAC and VSC unless necessary. n Replacing tires Make sure that all tires are of the same size, brand, tread pattern and total load capacity. In addition, make sure that the tires are inflated to the recommended tire pressure level. The ABS and VSC systems will not function correctly if different tires are fitted on the vehicle. Contact your Toyota dealer for further information when replacing tires or wheels. n Handling of tires and suspension Using tires with any kind of problem or modifying the suspension will affect the driving assist systems, and may cause the system to malfunction. n Active torque control 4WD system l The AWD system of this vehicle is intended to ensure driving stability on normal roads. It is not designed for use in demanding situations such as rally driving. l Take care when driving on slippery road surfaces. 2 When driving 139