Toyota 4Runner (2020 year). Manual - part 34

536

8-1. Specifications

4RUNNER (U)

Load limit at maximum cold tire inflation pressure 

(



P. 541)

Maximum cold tire inflation pressure 

(



P. 541)

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

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.

Radial tires or bias-ply tires

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

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)

7

8

9

10



Type A



Type B

1

2

3

4

5

6

7

8

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■

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

538

8-1. Specifications

4RUNNER (U)

Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer

Tire section names

1

2

3

4

5

6

7

8

9

10

11

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4RUNNER (U)

This  information  has  been  prepared  in  accordance  with  regulations
issued  by  the  National  Highway  Traffic  Safety Administration  of  the
U.S. Department of Transportation.
It  provides  the  purchasers  and/or  prospective  purchasers  of  Toyota
vehicles with information on uniform tire quality grading.

Your Toyota  dealer  will  help  answer  any  questions  you  may  have  as
you read this information.

■

DOT quality grades

All passenger vehicle tires must conform to Federal Safety Require-
ments  in  addition  to  these  grades.  Quality  grades  can  be  found
where applicable on the tire sidewall between tread shoulder and
maximum section width.

For example: Treadwear 200 Traction AA Temperature A

■

Treadwear

The  treadwear  grade  is  a  comparative  rating  based  on  the  wear
rate of the tire when tested under controlled conditions on a speci-
fied government test course.

For example, a tire graded 150 would wear one and a half (1 - 1/2)
times as well on the government course as a tire graded 100.
The  relative  performance  of  tires  depends  upon  the  actual  condi-
tions of their use. Performance may differ significantly from the norm
due to variations in driving habits, service practices and differences
in road characteristics and climate.

■

Traction AA, A, B, C

The  traction  grades,  from  highest  to  lowest,  are AA, A,  B  and  C,
and  they  represent  the  tire’s  ability  to  stop  on  wet  pavement  as
measured under controlled conditions on specified government test
surfaces of asphalt and concrete.

A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking
(straight ahead) traction tests and does not include cornering (turn-
ing) traction.

Uniform Tire Quality Grading

540

8-1. Specifications

4RUNNER (U)

■

Temperature A, B, C

The temperature grades are A (the highest), B, and C, representing
the tire’s resistance to the generation of heat and its ability to dissi-
pate  heat  when  tested  under  controlled  conditions  on  a  specified
indoor laboratory test wheel.

Sustained  high  temperature  can  cause  the  material  of  the  tire  to
degenerate and reduce tire life, and excessive temperature can lead
to sudden tire failure.
Grade C corresponds to a level of performance which all passenger
car  tires  must  meet  under  the  Federal  Motor  Vehicle  Safety  Stan-
dard No. 109.
Grades B and A represent higher levels of performance on the labo-
ratory test wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either sepa-
rately  or  in  combination,  can  cause  heat  buildup  and  possible  tire
failure.

541

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Glossary of tire terminology

Tire related term

Meaning

Cold tire inflation pres-
sure

Tire  pressure  when  the  vehicle  has  been
parked  for  three  hours  or  more,  or  has  not
been driven more than 1 mile or 1.5 km under
that condition

Maximum 

inflation

pressure

The maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire

Recommended  infla-
tion pressure

Cold tire inflation pressure recommended by a
manufacturer

Accessory weight

The combined weight (in excess of those stan-
dard  items  which  may  be  replaced)  of  auto-
matic  transmission,  power  steering,  power
brakes,  power  windows,  power  seats,  radio
and heater, to the extent that these items are
available  as  factory-installed  equipment
(whether installed or not)

Curb weight

The  weight  of  a  motor  vehicle  with  standard
equipment, including the maximum capacity of
fuel,  oil  and  coolant,  and  if  so  equipped,  air
conditioning  and  additional  weight  optional
engine

Maximum loaded vehi-
cle weight

The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

Normal 

occupant

weight

150 lb. (68 kg) times the number of occupants

specified  in  the  second  column  of  Table  1

*

that follows

Occupant distribution

Distribution of occupants in a vehicle as speci-

fied in the third column of Table 1

*

 below

542

8-1. Specifications

4RUNNER (U)

Production 

options

weight

The combined weight of installed regular pro-
duction options weighing over 5 lb. (2.3 kg) in
excess  of  the  standard  items  which  they
replace,  not  previously  considered  in  curb
weight  or  accessory  weight,  including  heavy
duty  brakes,  ride  levelers,  roof  rack,  heavy
duty battery, and special trim

Rim

A  metal  support  for  a  tire  or  a  tire  and  tube
assembly  upon  which  the  tire  beads  are
seated

Rim diameter
(Wheel diameter)

Nominal diameter of the bead seat

Rim size designation

Rim diameter and width

Rim type designation

The industry manufacturer’s designation for a
rim by style or code

Rim width

Nominal distance between rim flanges

Vehicle 

capacity

weight 

(Total 

load

capacity)

The rated cargo and luggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity

Vehicle maximum load
on the tire

The  load  on  an  individual  tire  that  is  deter-
mined by distributing to each axle its share of
the  maximum  loaded  vehicle  weight,  and
dividing by two

Vehicle normal load on
the tire

The  load  on  an  individual  tire  that  is  deter-

mined by distributing to each axle its share of

curb  weight,  accessory  weight,  and  normal

occupant  weight  (distributed  in  accordance

with Table 1

*

 below), and dividing by two

Weather side

The surface area of the rim not covered by the
inflated tire

Bead

The part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is
shaped to fit the rim

Bead separation

A  breakdown  of  the  bond  between  compo-
nents in the bead

Tire related term

Meaning

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Bias ply tire

A  pneumatic  tire  in  which  the  ply  cords  that
extend  to  the  beads  are  laid  at  alternate
angles  substantially  less  than  90  degrees  to
the centerline of the tread

Carcass

The  tire  structure,  except  tread  and  sidewall
rubber which, when inflated, bears the load

Chunking

The  breaking  away  of  pieces  of  the  tread  or
sidewall

Cord

The strands forming the plies in the tire

Cord separation

The  parting  of  cords  from  adjacent  rubber
compounds

Cracking

Any parting within the tread, sidewall, or inner-
liner of the tire extending to cord material

CT

A  pneumatic  tire  with  an  inverted  flange  tire
and  rim  system  in  which  the  rim  is  designed
with  rim  flanges  pointed  radially  inward  and
the  tire  is  designed  to  fit  on  the  underside  of
the  rim  in  a  manner  that  encloses  the  rim
flanges inside the air cavity of the tire

Extra load tire

A tire designed to operate at higher loads and
at  higher  inflation  pressures  than  the  corre-
sponding standard tire

Groove

The space between two adjacent tread ribs

Innerliner

The  layer(s)  forming  the  inside  surface  of  a
tubeless tire that contains the inflating medium
within the tire

Innerliner separation

The parting of the innerliner from cord material
in the carcass

Intended 

outboard

sidewall

(a) The  sidewall  that  contains  a  whitewall,

bears  white  lettering,  or  bears  manufac-
turer,  brand,  and/or  model  name  molding
that  is  higher  or  deeper  than  the  same
molding on the other sidewall of the tire, or

(b) The  outward  facing  sidewall  of  an  asym-

metrical tire that has a particular side that
must always face outward when mounted
on a vehicle

Tire related term

Meaning

544

8-1. Specifications

4RUNNER (U)

Light truck (LT) tire

A  tire  designated  by  its  manufacturer  as  pri-
marily  intended  for  use  on  lightweight  trucks
or multipurpose passenger vehicles

Load rating

The maximum load that a tire is rated to carry
for a given inflation pressure

Maximum load rating

The load rating for a tire at the maximum per-
missible inflation pressure for that tire

Maximum  permissible
inflation pressure

The maximum cold inflation pressure to which
a tire may be inflated

Measuring rim

The  rim  on  which  a  tire  is  fitted  for  physical
dimension requirements

Open splice

Any parting at any junction of tread, sidewall,
or innerliner that extends to cord material

Outer diameter

The overall diameter of an inflated new tire

Overall width

The  linear  distance  between  the  exteriors  of
the sidewalls of an inflated tire, including ele-
vations due to labeling, decorations, or protec-
tive bands or ribs

Passenger car tire

A  tire  intended  for  use  on  passenger  cars,
multipurpose passenger vehicles, and trucks,
that  have  a  gross  vehicle  weight  rating
(GVWR) of 10,000 lb. or less.

Ply

A layer of rubber-coated parallel cords

Ply separation

A  parting  of  rubber  compound  between  adja-
cent plies

Pneumatic tire

A  mechanical  device  made  of  rubber,  chemi-
cals, fabric and steel or other materials, that,
when  mounted  on  an  automotive  wheel,  pro-
vides the traction and contains the gas or fluid
that sustains the load

Radial ply tire

A  pneumatic  tire  in  which  the  ply  cords  that
extend to the beads are laid at substantially 90
degrees to the centerline of the tread

Reinforced tire 

A tire designed to operate at higher loads and
at  higher  inflation  pressures  than  the  corre-
sponding standard tire

Tire related term

Meaning

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*

:

Table 1 



 Occupant loading and distribution for vehicle normal load for

various designated seating capacities

Section width

The  linear  distance  between  the  exteriors  of
the sidewalls of an inflated tire, excluding ele-
vations due to labeling, decoration, or protec-
tive bands

Sidewall

That  portion  of  a  tire  between  the  tread  and
bead

Sidewall separation

The parting of the rubber compound from the
cord material in the sidewall

Snow tire

A tire that attains a traction index equal to or
greater  than  110,  compared  to  the ASTM  E-
1136  Standard  Reference  Test  Tire,  when
using  the  snow  traction  test  as  described  in
ASTM  F-1805-00,  Standard  Test  Method  for
Single  Wheel  Driving  Traction  in  a  Straight
Line on Snow-and Ice-Covered Surfaces, and
which is marked with an Alpine Symbol ( 

 )

on at least one sidewall

Test rim

The rim on which a tire is fitted for testing, and
may  be  any  rim  listed  as  appropriate  for  use
with that tire

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

Tire related term

Meaning

546

8-1. Specifications

4RUNNER (U)

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

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8-2. Customization

When customizing vehicle features, ensure that the vehicle is parked
in a safe place with the shift lever in P and the parking brake set.

■

Changing by using the multi-information display

Use the meter control switches to select 

 on the multi-infor-

mation display.

Choose the desired item using 

 or 

, and then press 

.

Select  the  desired  setting  by  operating 

  or 

,  and  then

press 

.

To stop the selection, press 

 to return to the previous screen.

■

Changing on the audio system screen

Press the “MENU” button.
Select “Setup” on the “Menu” screen.
Select “General” or “Vehicle” on the “Setup” screen.

Various setting can be changed. Refer to the list of settings that can
be changed for details.

Customizable features

Your vehicle includes a variety of electronic features that can be
personalized to suit your preferences. The settings of these fea-
tures can be changed by using the steering wheel switches, nav-
igation system, multimedia system or at your Toyota dealer.
It is also possible to customize certain vehicle features yourself
using the multi-information display.

Customizing vehicle features

1

2

3

1

2

3

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8-2. Customization

4RUNNER (U)

Some function settings are changed simultaneously with other func-
tions being customized. Contact your Toyota dealer for further details.

Settings that can be changed using the meter control switches
Settings  that  can  be  changed  using  the  navigation  system  or  the
multimedia system
Settings that can be changed by your Toyota dealer

Definition of symbols: O = Available, – =Not available

■

Door lock (



P. 110, 131, 510)

Customizable features

1

2

3

Function

Default setting

Customized 

setting

Unlocking using a key

Driver’s  door
unlocked 

in

one  step,  all
doors
unlocked 

in

two steps

All 

doors

unlocked 

in

one step

–

–

O

Automatic door lock

Shift position 

linked door 

locking opera-

tion

Off

–

O

O

Speed linked 

door locking 

operation

Automatic door unlock

Shift position 

linked door 

unlocking oper-

ation

Off

–

O

O

Driver’s door 

linked door 

unlocking oper-

ation

1

2

3

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■

Smart key system

*

 and wireless remote control 

(



P. 110, 118, 131)

*

: If equipped

■

Smart key system

*

 (



P. 110, 118, 131)

*

: If equipped

Function

Default setting

Customized 

setting

Operation signal (buzzer)

Level 5

Off

–

O

O

Level 1 to 7

Operation  signal  (Emer-
gency flashers)

On

Off

–

O

O

Time  elapsed  before  the
automatic  door  lock  func-
tion is activated if a door is
not  opened  after  being
unlocked

60 seconds

OFF

–

O

O

30 seconds

120 seconds

Open  door  warning  func-
tion  (When  locking  the
vehicle)

On

Off

–

–

O

1

2

3

Function

Default setting

Customized 

setting

Smart door unlocking

Driver’s door

All the doors

–

O

O

Smart key system

On

Off

–

O

O

Number  of  consecutive
door lock operations

2 times

As many 

as desired

–

–

O

1

2

3

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■

Wireless remote control (



P. 102, 110, 131)

■

Driving position memory

*

 (



P. 149)

*

: If equipped

■

Automatic light control system

*

 (



P. 225)

*

: If equipped

Function

Default setting

Customized 

setting

Wireless remote control

On

Off

–

–

O

Panic function

On

Off

–

–

O

Unlocking operation

Driver’s  door
unlocked 

in

one  step,  all
doors
unlocked 

in

two steps

All 

doors

unlocked 

in

one step

–

O

O

1

2

3

Function

Default setting

Customized 

setting

Selecting  the  door  linking
driving  position  memory
with door unlock operation

Driver’s door

All doors

–

–

O

1

2

3

Function

Default setting

Customized 

setting

Time elapsed before head-
lights automatically turn off
after doors are closed

30 seconds

Off

–

O

O

60 seconds

90 seconds

Light sensor sensitivity

Level 3

Levels 1 to 5

–

O

O

1

2

3

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■

Interior lights (



P. 355)

*

1

: For vehicles with a smart key system

*

2

: If equipped

Function

Default setting

Customized 

setting

Time  elapsed  before  the
interior lights turn off

15 seconds

Off

–

O

O

7.5 seconds

30 seconds

Operation  after the  engine
switch  is  turned  to  the
“LOCK” position (without a
smart  key  system)  or  the
engine  switch  is  turned  to
OFF (with a smart key sys-
tem)

On

Off

–

–

O

Operation  when  the  doors
are  unlocked  with  the
smart  key  system  or  wire-
less remote control

On

Off

–

–

O

Operation 

when 

you

approach  the  vehicle  with
the  electronic  key  on  your
person

*

1

On

Off

–

–

O

Operation  of  the  footwell
lights

*

2

On

Off

–

–

O

Lounge  illumination  con-
trol

*

2

On

Off

–

–

O

1

2

3