2004 Toyota Matrix Owners Manual - Page 267

'04 MATRIX_U (L/O 0307) Checking and replacing tires High tire pressure (overinflation)- D Poor handling D Excessive wear D Uneven wear D A greater possibility of tire damage from road hazards Tread wear indicator The tires on your Toyota have built −in tread wear indicators to help you know when the tires need replacement. When the tread depth wears to 1.6 mm (0.06 in.) or less, the indicators will appear. If you can see the indicators in two or more adjacent grooves, the tire should be replaced. The lower the tread, the higher the risk of skidding. Vehicles equipped with P215/50ZR17 tires: Your Toyota has been fitted with specially developed tires which provide exceptional dynamic performance under general road conditions. However your riding comfort may worsen a little and road noise may increase during driving. You may also notice that your tires will wear more rapidly and tire grip performance will be reduced on the snowy and/or icy roads when compared to standard tires. Be sure to have snow tires or tire chains on the snowy and/or icy roads and drive carefully with the speed appropriate for road conditions. CHECKING YOUR TIRES Check the tires tread for the tread wear indicators. If the indicators show, replace the tires. The location of the tread wear indicators is shown by the "TWI" or "∆ " marks, etc., molded on the sidewall of each tire. 267 2004 MATRIX from Oct. '03 Prod. (OM12861U)