2007 Toyota Sienna Owners Manual - Page 491

07 SIENNA_U (L/O 0612) Using any other size or type of tire may seriously affect handling, ride, speedometer/odometer calibration, ground clearance, and clearance between the body and tires or snow chains. Check that the maximum load of the replaced tire is greater than 1/2 of the Gross Axle Weight Ratings (GAWR) of either the front axle or the rear axle, whichever is greater. As for the maximum load of the tire, see the load limit at maximum cold tire inflation pressure mentioned on the sidewall of the tire, and as for the Gross Axle Weight Ratings (GAWR), see the Certification Label. For details about the side wall of the tire and the Certification Label, see pages 398 and 401. CAUTION Observe the following instructions. Otherwise, an accident may occur resulting in death or serious injuries. D Do not mix radial, bias belted, or bias−ply tires on your vehicle, as this may cause dangerous handling characteristics resulting in loss of control. D Do not use tires other than the manufacturer's recommended size, as this may cause dangerous handling characteristics resulting in loss of control. D All−wheel drive models: Do not use tires of different brands, sizes, construction or tread patterns, as this may cause dangerous handling characteristics resulting in loss of control. Toyota recommends all four tires, or at least both of the front or rear tires be replaced at a time as a set. See "If you have a flat tire" on page 437 in Section 4 for tire change procedure. When a tire is replaced, the wheel should always be balanced. An unbalanced wheel may affect vehicle handling and tire life. Wheels can get out of balance with regular use and should therefore be balanced occasionally. When replacing a tubeless tire, the air valve should also be replaced with a new one. Initial adjustment of the tire pressure warning system is necessary after you have rotated your tires. See "Tire pressure warning system" on page 214 in Section 1−7. 491 2007 SIENNA from Oct. '06 Prod. (OM45437U)