wheel size FORD TRANSIT 2021 Owners Manual

USING ALL-WHEEL DRIVE
WARNING: Vehicles with a higher
center of gravity (utility and four-wheel
drive vehicles) handle differently than
vehicles with a lower center of gravity
(passenger cars). Avoid sharp turns,
excessive speed and abrupt steering in
these vehicles. Failure to drive cautiously
increases the risk of losing control of your
vehicle, vehicle rollover, personal injury
and death.
The intelligent AWD system continuously
monitors vehicle conditions and adjusts
the power distribution between the front
and rear wheels. It combines transparent
all-surface operation with highly capable
all-wheel drive.
The AWD system is always active and
requires no driver input. It is capable of
handling all road conditions. You can
optimize the AWD performance for
specialized driving conditions by selecting
different drive modes. See Drive Control
(page
226).
Operating All-Wheel Drive (AWD)
Vehicles with Mismatched Tires WARNING:
Only use replacement
tires and wheels that are the same size,
load index, speed rating and type (such
as P-metric versus LT-metric or
all-season versus all-terrain) as those
originally provided by Ford. The
recommended tire and wheel size may
be found on either the Safety
Compliance Certification Label (affixed
to either the door hinge pillar, door-latch
post, or the door edge that meets the
door-latch post, next to the driver's
seating position), or the Tire Label which
is located on the B-Pillar or edge of the driver's door. If this information is not
found on these labels, then you should
contact your authorized dealer as soon
as possible. Use of any tire or wheel not
recommended by Ford can affect the
safety and performance of your vehicle,
which could result in an increased risk of
loss of vehicle control, vehicle rollover,
personal injury and death.
Major dissimilar tire sizes between the front
and rear axles could cause the AWD
system to stop functioning and default to
rear-wheel drive or damage the AWD
system.
For optimum AWD performance, it is
recommended to follow the tire rotation
maintenance schedule. To avoid potential
AWD malfunction or AWD system damage,
it is recommended to replace all four tires
rather than mixing significantly worn tires
with new tires.
Driving In Special Conditions With
All-Wheel Drive (AWD)
Note: AWD vehicles are equipped for
driving on sand, snow, mud and rough roads
and have operating characteristics that are
somewhat different from conventional
vehicles, both on and off the highway.
Basic Operating Principles in Special
Conditions
• Drive slower in strong crosswinds which
can affect the normal steering
characteristics of your vehicle.
• Be extremely careful when driving on
pavement made slippery by loose sand,
water, gravel, snow or ice.
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PRINCIPLE OF OPERATION
WARNING: Vehicle modifications
involving braking system, aftermarket
roof racks, suspension, steering system,
tire construction and wheel and tire size
may change the handling characteristics
of your vehicle and may adversely affect
the performance of the electronic
stability control system. In addition,
installing any stereo loudspeakers may
interfere with and adversely affect the
electronic stability control system. Install
any aftermarket stereo loudspeaker as
far as possible from the front center
console, the tunnel, and the front seats
in order to minimize the risk of interfering
with the electronic stability control
sensors. Reducing the effectiveness of
the electronic stability control system
could lead to an increased risk of loss of
vehicle control, vehicle rollover, personal
injury and death. WARNING:
Remember that even
advanced technology cannot defy the
laws of physics. It's always possible to
lose control of a vehicle due to
inappropriate driver input for the
conditions. Aggressive driving on any
road condition can cause you to lose
control of your vehicle increasing the risk
of personal injury or property damage.
Activation of the electronic stability
control system is an indication that at
least some of the tires have exceeded
their ability to grip the road; this could
reduce the operator's ability to control
the vehicle potentially resulting in a loss
of vehicle control, vehicle rollover,
personal injury and death. If your
electronic stability control system
activates, SLOW DOWN.
The system automatically turns on each
time you switch the ignition on. If the stability control or traction control
system detects a fault, the following may
occur:
•
The stability and traction control light
illuminates steadily.
• The stability control and traction
control systems do not enhance your
vehicle's ability to maintain traction of
the wheels.
If the stability control or traction control
system activates, the following may occur:
• The stability and traction control light
flashes.
• Your vehicle slows down.
• Reduced engine power.
• A vibration in the brake pedal.
• The brake pedal is stiffer than usual.
• If the driving condition is severe and
your foot is not on the brake pedal, the
pedal may move as the system applies
higher brake force.
The stability control system has several
features built into it to help you maintain
control of your vehicle.
Electronic Stability Control
The system helps to prevent your vehicle
skidding or laterally sliding by individually
applying the brakes to one or more wheels
and, if necessary, reducing engine power.
Roll Stability Control
The system helps to prevent rollovers by
detecting your vehicle's roll motion, and
individually applying the brakes to one or
more wheels.
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Cruise Control Indicator
The indicator appears when you
switch the system on.
USING ADAPTIVE CRUISE
CONTROL (IF EQUIPPED) WARNING: You are responsible for
controlling your vehicle at all times. The
system is designed to be an aid and does
not relieve you of your responsibility to
drive with due care and attention. Failure
to follow this instruction could result in
the loss of control of your vehicle,
personal injury or death. WARNING:
Pay close attention to
changing road conditions such as
entering or leaving a highway, on roads
with intersections or roundabouts, roads
without visible lanes of travel, roads that
are winding, slippery, unpaved, or steep
slopes. WARNING:
The system may not
detect stationary or slow moving
vehicles below
6 mph (10 km/h). WARNING:
Do not use the system
when towing a trailer that has
aftermarket electronic trailer brake
controls. Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death. WARNING:
The system is not a
crash warning or avoidance system. WARNING:
The system does not
detect pedestrians or objects in the road. WARNING:
The system does not
detect oncoming vehicles in the same
lane. WARNING:
Do not use the system
in poor visibility, for example fog, heavy
rain, spray or snow. WARNING:
Do not use tire sizes
other than those recommended because
this can affect the normal operation of
the system. Failure to do so may result
in a loss of vehicle control, which could
result in serious injury.
The system adjusts the vehicle speed to
maintain the set gap between you and the
vehicle in front of you in the same lane.
You can select four gap settings.
The system uses a radar that projects a
beam directly in front of your vehicle. The adaptive cruise controls are on the
steering wheel.
Switching Adaptive Cruise Control
On
Press to set the system in
standby mode.
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•
Higher - to allow higher load carrying
capacity and to allow it to travel over
rough terrain without getting hung up
or damaging underbody components.
• Shorter - to give it the capability to
approach inclines and drive over the
crest of a hill without getting hung up
or damaging underbody components.
All other things held equal, a shorter
wheelbase may make your vehicle
quicker to respond to steering inputs
than a vehicle with a longer wheelbase.
• Narrower - to provide greater
maneuverability in tight spaces,
particularly in off-road use. As a result of the above dimensional
differences, sport-utility vehicles, vans and
trucks often will have a higher center of
gravity and a greater difference in center
of gravity between the loaded and
unloaded condition.
These differences that make your vehicle
so versatile also make it handle differently
than an ordinary passenger car. TIRE SEALANT AND INFLATOR
KIT WARNING: Do not use the inflator
kit on run flat tires. This could cause loss
of vehicle control. WARNING: Depending on the type
and extent of tire damage, some tires
can only be partially sealed or not sealed
at all. Loss of tire pressure can affect
vehicle handling, leading to loss of
vehicle control. WARNING:
Do not use the kit on a
previously damaged tire, for example
when it has been driven under inflated.
This could cause loss of vehicle control,
personal injury or death.
Note: Motorhome owners may have to
follow separate instructions issued with the
temporary mobility kit.
If your vehicle does not have a spare wheel
it has a tire sealant and inflator kit. The kit
is in the right-hand side stepwell. Only use
the kit supplied with your vehicle.
Note: : The kit can only temporarily repair
one tire puncture with a maximum puncture
size of up to 0.24 in (6 mm).
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Federal Motor Vehicle Safety
Standard No. 139. Grades B and A
represent higher levels of
performance on the laboratory
test wheel than the minimum
required by law.
Glossary of Tire Terminology
•
Tire label: A label showing the
OE (Original Equipment) tire
sizes, recommended inflation
pressure and the maximum
weight the vehicle can carry.
• Tire Identification Number
(TIN): A number on the
sidewall of each tire providing
information about the tire
brand and manufacturing
plant, tire size and date of
manufacture. Also referred to
as DOT code.
• Inflation pressure: A measure
of the amount of air in a tire.
• Standard load:
A class of
P-metric or Metric tires
designed to carry a maximum
load at set pressure. For
example: for P-metric tires
35 psi (2.4 bar)
and for Metric
tires 36 psi (2.5 bar). Increasing
the inflation pressure beyond
this pressure will not increase
the tire capability.
• Extra load: A class of P-metric
or Metric tires designed to carry
a heavier maximum load at
42 psi (2.9 bar)
. Increasing the
inflation pressure beyond this
pressure will not increase the
tire ’s load carrying capability. •
bar
Metric unit of atmospheric
pressure.
• kPa:
Kilopascal, a metric unit
of air pressure.
• PSI:
Pounds per square inch, a
standard unit of air pressure.
• Cold tire pressure:
The tire
pressure when the vehicle has
been stationary and out of
direct sunlight for an hour or
more and prior to the vehicle
being driven for
1 mi (1.6 km).
• Recommended inflation
pressure:
The cold inflation
pressure found on the Safety
Compliance Certification Label
(affixed to either the door hinge
pillar, door-latch post, or the
door edge that meets the
door-latch post, next to the
driver seating position) or Tire
Label located on the B-Pillar or
the edge of the driver door.
• B-pillar:
The structural
member at the side of the
vehicle behind the front door.
• Bead area of the tire: Area of
the tire next to the rim.
• Sidewall of the tire:
Area
between the bead area and the
tread.
• Tread area of the tire:
Area of
the perimeter of the tire that
contacts the road when
mounted on the vehicle.
• Rim:
The metal support
(wheel) for a tire or a tire and
tube assembly upon which the
tire beads are seated.
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Information Contained on the
Tire Sidewall
United States of America, and
Canada Federal regulations
require tire manufacturers to place
standardized information on the
sidewall of all tires. This
information identifies and
describes the fundamental
characteristics of the tire and also
provides a United States of
America DOT Tire Identification
Number for safety standard
certification and in case of a recall.
P Type Tires
P215/65R15 95H is an example of
a tire size, load index and speed
rating. The definitions of these
items are listed below.
Note:
Tire size, load index and
speed rating for your vehicle may
be different from the following
example. P: Indicates a tire,
designated by the Tire
and Rim Association, that
may be used for service on
cars, sport utility vehicles,
minivans and light trucks.
A
215: Indicates the nominal
width of the tire in
millimeters from sidewall
edge to sidewall edge. In
general, the larger the
number, the wider the tire.
B
65:
Indicates the aspect
ratio which gives the tire's
ratio of height to width.
C
R:
Indicates a radial type
tire.
D
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15: Indicates the wheel or
rim diameter in inches. If
you change the wheel
size, you will have to
purchase new tires to
match the new wheel
diameter.
E
95:
Indicates the tire's
load index. It is an index
that relates to how much
weight a tire can carry.
You may find this
information in the Owner ’s
Guide. If not, contact a
local tire dealer.
F
H:
Indicates the tire's
speed rating. The speed
rating denotes the speed
at which a tire is designed
to be driven for extended
periods of time under a
G
standard condition of load
and inflation pressure.
The tires on your vehicle
may operate at different
conditions for load and
inflation pressure. These
speed ratings may need
to be adjusted for the
difference in conditions.
The ratings range from 81
mph (130 kph) to 186 mph
(299 kph). These ratings
are listed in the following
chart. United States of
America DOT Tire
Identification Number
(TIN):
This begins with
the letters DOT and
indicates that the tire
H
meets all federal
standards. The next two
numbers or letters are the
plant code designating
where it was
manufactured, the next
two are the tire size code
and the last four numbers
represent the week and
year the tire was built. For
example, the numbers 317
mean the 31st week of
1997. After 2000 the
numbers go to four digits.
For example, 2501 means
the 25th week of 2001.
The numbers in between
are identification codes
used for traceability. This
information is used to
contact customers if a tire
defect requires a recall.
M+S or M/S:
Mud and
Snow, AT: All Terrain, AS:
All Season.
I
Tire Ply Composition
and Material Used:
Indicates the number of
plies or the number of
layers of rubber-coated
fabric in the tire tread and
J
sidewall. Tire
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the driver door. The cold
inflation pressure should
never be set lower than
the recommended
pressure on the vehicle
label.
Tire speed ratings
mph ( km/h)
Letter
rating
81 mph (130 km/h)
M
87 mph (140 km/h)
N
99 mph (159 km/h)
Q
106 mph (171 km/h)
R
112 mph (180 km/h)
S
118 mph (190 km/h)
T
124 mph (200 km/h)
U
130 mph (210 km/h)
H
149 mph (240 km/h)
V
168 mph (270 km/h)
W
186 mph (299 km/h)
Y
Note: For tires with a maximum
speed capability over 149 mph
(240 km/h), tire manufacturers
sometimes use the letters ZR. For
those with a maximum speed
capability over 186 mph (299
km/h), tire manufacturers always
use the letters ZR. Note:
If the tire size does not begin
with a letter, this may mean it is
designated by either ETRTO
(European Tire and Rim Technical
Organization) or JATMA (Japan Tire
Manufacturing Association). You
may not find this information on all
tires because it is not required by
federal law.
Note: The tire suppliers may have
additional markings, notes or
warnings, for example standard
load, radial tubeless, etc.
T Type Tires
T145/80D16 is an example of a
tire size. T type tires have some
additional information beyond
those of P type tires. The
definitions of these items are
listed below.
Note: The temporary tire size for
your vehicle may be different from
this example. Tire Quality Grades
do not apply to this type of tire.
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T: Indicates a type of tire,
designated by the Tire
and Rim Association, that
is intended for temporary
service on cars,
sport-utility vehicles,
minivans and light trucks.
A
145:
Indicates the
nominal width of the tire
in millimeters from
sidewall edge to sidewall
edge. In general, the larger
the number, the wider the
tire.
B 80:
Indicates the aspect
ratio which gives the tire's
ratio of height to width.
Numbers of 70 or lower
indicate a short sidewall.
C
D:
Indicates a diagonal
type tire. R: Indicates a
radial type tire.
D
16:
Indicates the wheel or
rim diameter in inches. If
you change the wheel
size, you will have to
purchase new tires to
match the new wheel
diameter.
E
Additional Information for LT
Type Tires
LT235/85 R16 is an example of a
tire size. LT type tires have some
additional information beyond
those of P type tires. The
definitions of these items are
listed below.
Note: Tire Quality Grades do not
apply to this type of tire.
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LT: Indicates a tire,
designated by the Tire
and Rim Association
(T&RA), that is intended
for service on light trucks.
A
Load Range and Load
Inflation Limits:
Indicates the tire's
load-carrying capabilities
and its inflation limits.
B Maximum Load Dual lb
(kg) at psi (kPa) cold:
Indicates the maximum
load and tire pressure
when the tire is used as a
dual, defined as four tires
on the rear axle (a total of
six or more tires on the
vehicle).
C
Maximum Load Single
lb (kg) at psi (kPa)
cold:
Indicates the
maximum load and tire
pressure when the tire is
used as a single, defined
as two tires (total) on the
rear axle.
D
Additional Information for
ETRTO Euro-Metric
Commercial Vehicle Tires
Euro-metric commercial vehicle
tires end in the letter "C" (for
example, 235/65R16
C). The "C"
does not signify the tire's Load
Range like the T&RA LT tire
dimension (for example,
LT245/75R17
E).
Tire Load Capacities are identified
by the Single/Dual Load indexes
that follow the tire size on the
tire's sidewall (for example,
235/65R16C
121/119).
Note: Tire Quality Grades do not
apply to this type of tire.
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