Toyota Highlander (2018 year). Manual - part 164

668

9-1. Specifications

Tire size

 (

→P. 670)

DOT and Tire Identification Number (TIN)

(

→P. 669)

Location of treadwear indicators

(

→P. 531)

Tire ply composition and materials

Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.

Radial tires or bias-ply tires

A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL”
is a bias-ply tire.

TUBELESS or TUBE TYPE

A tubeless tire does not have a tube and air is directly put into the tire.
A tube type tire has a tube inside the tire and the tube maintains the air
pressure.

Load limit at maximum cold tire inflation pressure 

(

→P. 674)

Maximum cold tire inflation pressure 

(

→P. 674)

This means the pressure to which a tire may be inflated.

Uniform tire quality grading

For details, see “Uniform Tire Quality Grading” that follows.

Summer tires or all season tires

 (

→P. 536)

An all season tire has “M+S” on the sidewall. A tire not marked “M+S”
is a summer tire.

“TEMPORARY USE ONLY”

A compact spare tire is identified by the phrase “TEMPORARY USE
ONLY” molded on its sidewall. This tire is designed for temporary
emergency use only.

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2
3
4

5

6

7
8

9

10

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669

9-1. Specifications

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DOT symbol

*

Tire Identification Number (TIN)

Tire manufacturer’s identification mark

Tire size code

Manufacturer’s optional tire type code (3 or 4 letters)

Manufacturing week

Manufacturing year

Manufacturer's code

*

: The DOT symbol certifies that the tire conforms to applicable Federal

Motor Vehicle Safety Standards.

Typical DOT and Tire Identification Number (TIN)



Type A



Type B

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2
3
4
5
6
7
8

670

9-1. Specifications

■

Typical tire size information

The illustration indicates typical
tire size.

Tire use (P = Passenger car, 
T = Temporary use)

Section width (millimeters)

Aspect ratio 
(tire height to section width)

Tire construction code 
(R = Radial, D = Diagonal)

Wheel diameter (inches)

Load index 
(2 digits or 3 digits)

Speed symbol 
(alphabet with one letter)

■

Tire dimensions

Section width

Tire height

Wheel diameter

Tire size

1

2
3

4

5
6

7

1
2
3

671

9-1. Specifications

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Bead

Sidewall

Shoulder

Tread

Belt

Inner liner

Reinforcing rubber

Carcass

Rim lines

Bead wires

Chafer

Tire section names

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2
3
4
5
6
7
8
9

10

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