Lexus IS250 2009, Service Manual

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6-1. Specifications
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:Table 1
⎯
Occupant loading and distribution for vehicle normal load for
various designated seating capacities
Tire related term Meaning
Tread
That portion of a tire that comes into contact with the
road
Tread rib
A tread section running circumferentially around a
tire
Tread separation Pulling away of the tread from the tire carcass
Treadwear indicators
(TWI)
The projections within the principal grooves
designed to give a visual indication of the degrees of
wear of the tread
Wheel-holding fixture
The fixture used to hold the wheel and tire assembly
securely during testing
Designated seating
capacity, Number of
occupants
Vehicle normal load,
Number of occupants
Occupant distribution in
a normally loaded vehicle
2 through 4 2 2 in front
5 through 10 3 2 in front, 1 in second seat
11 through 15 5
2 in front, 1 in second
seat, 1 in third seat, 1 in
fourth seat
16 through 20 7
2 in front, 2 in second
seat, 2 in third seat, 1 in
fourth seat