2008 Toyota Yaris Owners Manual - Page 554

2-4. Using other driving systems CAUTION n The ABS does not operate effectively when l Tires with inadequate gripping ability are used (such as excessively worn tires on a snow covered road). l The vehicle hydroplanes while driving at high speed on the wet or slick road. n Stopping distance when the ABS is operating on the wet or slick roads The ABS is not designed to shorten the vehicle's stopping distance. Always maintain a safe distance from the vehicle in front of you in the following situations. l When driving on dirt, gravel or snow-covered roads l When driving with tire chains l When driving over bumps in the road l When driving over roads with potholes or uneven roads 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 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. 136