2021 TOYOTA TUNDRA width

2774-5. Using the driving support systems
4
Driving
■Operation conditio ns of each function
● Lane departure alert function
This function operates when all of the following conditions are met.
• LDA is turned on.
• Vehicle speed is approximately 32 mph (50 km/h) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or around a gentle curve with a radius
of more than approximately 492 ft. (150 m).
• No system malfunctions are detected. ( P. 279)
● Vehicle sway warning function
This function operates when all of the following conditions are met.
• Setting for “
Warning” in screen of the multi-information display is
set to on. ( P. 111)
• Vehicle speed is approximately 32 mph (50 km/h) or more.
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. ( P. 279)
■ Temporary cancellation of functions
When the operation conditions are no longer met, a function may be tempo-
rarily canceled. However, when the operation conditions are met again, oper-
ation of the function is automatically restored. ( P. 277)
■ Lane departure alert function
The warning buzzer may be difficult to hear due to external noi se, audio play-
back, etc.
■ Vehicle sway warning function
Depending on the vehicle and road conditions, the warning may n ot operate.
■ White (yellow) lines are on ly on one side of road
The LDA system will not operate for the side on which white (ye llow) lines
could not be recognized. When the system determines that the
vehicle is swaying while the vehicle sway
warning function is operating, a buzzer
sounds and a warning message urging
the driver to rest and the symbol shown in
the illustration are simultaneously dis-
played on the multi-information display.

5368-1. Specifications
Maintenance data (fuel, oil level, etc.)
2WD models
*1: Unladen vehicle
*2: P255/70R18 tires
*3: P275/65R18 tires
*4: P275/55R20 tires
Dimensions
Cab typeDouble Cab CrewMax
Bed typeStandardLongShort
Overall length228.9 in. (5815
mm) 247.8 in.
(6295 mm) 228.9 in.
(5815 mm)
Overall width 79.9 in. (2030 mm)
Overall
height
*1
78.3 in.
(1990 mm)
*278.1 in.
(1985 mm)
*2
78.1 in.
(1985 mm)
*3,*478.0 in.
(1980 mm)
*3,*4
Wheelbase 145.6 in. (3700
mm) 164.5 in.
(4180 mm) 145.6 in.
(3700 mm)
Front tread 67.9 in. (1725 mm)
Rear tread67.9 in. (1725 mm)

5378-1. Specifications
8
Vehicle specifications
4WD models
*1: Unladen vehicle
*2: P255/70R18 tires
*3: P275/65R18 tires
*4: P275/55R20 tires
Cab typeDouble Cab CrewMax
Bed typeStandardLongShort
Overall length228.9 in. (5815
mm) 247.8 in.
(6295 mm) 228.9 in.
(5815 mm)
Overall width 79.9 in. (2030 mm)
Overall
height
*1
78.7 in.
(2000 mm)
*278.6 in.
(1995 mm)
*2
78.6 in.
(1995 mm)
*3,*478.3 in.
(1990 mm)
*3,*4
Wheelbase 145.6 in. (3700
mm) 164.5 in.
(4180 mm) 145.6 in.
(3700 mm)
Front tread 67.9 in. (1725 mm)
Rear tread67.9 in. (1725 mm)
Seating capacity
Seating capacity
Vehicles with front sep-
arated type seatsVehicles with front bench type seat
5 (Front 2, Rear 3)6 (Front 3, Rear 3)

5558-1. Specifications
8
Vehicle specifications
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 tire size information
The illustration i ndicates typical
tire size.
Tire use
(P = Passenger car,
T = Temporary use)
Section widt h (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Typical DOT and Tire Iden tification Number (TIN)
Ty p e AType B
Tire size
1
2
3
4
5
6
7
8
1
2
3
4
5

5568-1. Specifications
Load index
(2 digits or 3 digits)
Speed symbol
(alphabet with one letter)
■Tire dimensions
Section width
Tire height
Wheel diameter
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
6
7
1
2
3
Tire section names
1
2
3
4
5
6
7
8
9
10
11

5578-1. Specifications
8
Vehicle specifications
This information has been prepared in accordance with regulations
issued by the National Highway Tr affic Safety Administration of the
U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota
vehicles with info rmation on uniform ti re 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 Requ ire-
ments in addition to these grades. Quality grades can be found
where applicable on the tire sidewall between tread shoulder an d
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 s peci-
fied government t est course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2)
times as well on the governmen t course as a tire graded 100.
The relative performance of tires depends upon the actual condi -
tions of their use. Performance ma y differ significantly from the norm
due to variations in driving habits, service practices and diff erences
in road characteristics and climate.
Uniform Tire Quality Grading

5608-1. Specifications
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 designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a
rim by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity
weight (Total load
capacity)The rated cargo and l uggage 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 sideThe 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 separationA breakdown of the bond between compo-
nents in the bead
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
CarcassThe tire structure, except tread and sidewall
rubber which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or
sidewall
CordThe strands forming th e plies in the tire
Tire related termMeaning

5628-1. Specifications
Open spliceAny parting at any junction of tread, sidewall,
or innerliner that extends to cord material
Outer diameterThe 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.
PlyA layer of rubber-coated parallel cords
Ply separationA 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 co ntains 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
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
SidewallThat portion of a tire between the tread and
bead
Sidewall separationThe parting of the rubber compound from the
cord material in the sidewall
Tire related termMeaning