2008 Toyota Highlander Owners Manual - Page 811

2-4. Using other driving systems CAUTION n If the hill- start assist control does not operate effectively The hill start assist control may not operate effectively on steep inclines and roads covered in ice. n When the Enhanced 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 Enhanced VSC are off When driving 2 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 Enhanced 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 appropriate tire pressure level. The ABS and Enhanced 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. 213