2005 Lexus GX 470 Owners Manual - Page 611

CHASSIS Tire related term Vehicle normal load on the tire Weather side Meaning the load on an individual tire that is determined by distributing to each axle its share of the curb weight, accessory weight, and normal occupant weight (distributed in accordance with Table 1 that follows) and dividing by two the surface area of the rim not covered by the inflated tire Table 1 - Occupant loading and distribution for vehicle normal load for various designated seating capacities Designated seating capacity, number of occupants 2 through 4 5 through 10 Vehicle normal load, number of occupants 2 3 Occupant distribution in a normally loaded vehicle 2 in front 2 in front, 1 in second seat 586