2013 Toyota Matrix Owners Manual - Page 445

6-1. Specifications Tire related term Tread Tread rib Tread separation Treadwear indicators (TWI) Wheel-holding fixture Meaning That portion of a tire that comes into contact with the road A tread section running circumferentially around a tire Pulling away of the tread from the tire carcass The projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread The fixture used to hold the wheel and tire assembly securely during testing *: 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 2 in front, 1 in second seat, 1 in third seat, 1 in fourth seat 2 in front, 2 in second seat, 2 in third seat, 1 in fourth seat 11 through 15 5 16 through 20 7 468