2005 Toyota Highlander Owners Manual - Page 315

'05 HIGHLANDER_U (L/O 0409) Types of tires From this condition, if 3 more passengers with the combined weight of 176 kg (388 lb.) get on, the available cargo and luggage load will be reduced as follows: Without third seat 224 kg - 176 kg = 48 kg. (494 lb. - 388 lb. = 106 lb.) With third seat 360 kg - 176 kg = 184 kg. (793 lb. - 388 lb. = 405 lb.) As shown in the above example, if the number of occupants increases, the cargo and luggage load equaling the combined weight of occupants who got on later must be reduced. In other words, if the increase in the number of occupants causes the excess of the total load capacity (combined weight of occupants plus cargo and luggage load), you have to reduce the cargo and luggage on your vehicle. For details about total load capacity, see "Vehicle load limits" on page 312. CAUTION Even if the total load of occupant's weight and the cargo load is less than the total load capacity, do not apply the load unevenly. That may cause not only damage to the tire but also deterioration to the steering ability due to unbalance of the vehicle, causing an accident. Determine what kind of tires your vehicle is originally equipped with. 1. Summer tires Summer tires are high −speed capability tires best suited to highway driving under dry conditions. Since summer tires do not have the same traction performance as snow tires, summer tires are inadequate for driving on snow −covered or icy roads. For driving on snow −covered or icy roads, we recommend using snow tires. If installing snow tires, be sure to replace all four tires. 2. All season tires All season tires are designed to provide better traction in snow and to be adequate for driving in most winter conditions, as well as for use all year round. 315 2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)