Lincoln MKX (2018 year). Manual - part 23

*Traction: The traction grades, from
highest to lowest are AA, A, B, and C.
The grades 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.

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

M. Maximum Inflation Pressure:
Indicates the tire manufacturer's
maximum permissible pressure, or the
pressure at which the maximum load
can be carried by the tire. This pressure
is normally higher than the vehicle
manufacturer's recommended cold
inflation pressure, which can be 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's seating position), or Tire
Label which is located on the B-Pillar or
the edge of the driver’s door. The cold
inflation pressure should never be set
lower than the recommended pressure
on the vehicle label.

The tire suppliers may have additional
markings, notes or warnings such as
standard load or radial tubeless.

Additional Information Contained on
the Tire Sidewall for LT Type Tires

Note: Tire Quality Grades do not apply
to this type of tire.

A

B

C

B

D

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LT type tires have some additional
information beyond those of P type tires.
These differences are described below.

A. LT: Indicates a tire, designated by the
Tire and Rim Association, that is
intended for service on light trucks.

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B. Load Range and Load Inflation
Limits: Indicates the tire's load-carrying
capabilities and its inflation limits.

C. 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).

D. 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.

Information on T Type Tires

T145/80D16 is an example of a tire size.

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.

A

B

C

D

E

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T type tires have some additional
information beyond those of P type tires.
These differences are described below.

A. 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.

B. 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.

C. 80: Indicates the aspect ratio, which
gives the tire's ratio of height to width.
Numbers of 70 or lower indicate a short
sidewall.

D. D: Indicates a diagonal type tire.

R: Indicates a radial type tire.

E. 16: Indicates the wheel or rim
diameter in inches. If you change your
wheel size, you will have to purchase
new tires to match the new wheel
diameter.

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Location of the Tire Label

You will find a Tire Label containing tire
inflation pressure by tire size and other
important information located on the
B-Pillar or the edge of the driver’s door.

Inflating Your Tires

Safe operation of your vehicle requires
that your tires are properly inflated.
Remember that a tire can lose up to half
of its air pressure without appearing flat.

Every day before you drive, check your
tires. If one looks lower than the others,
use a tire gauge to check pressure of all
tires and adjust if required.

At least once a month and before long
trips, inspect each tire and check the tire
pressure with a tire gauge (including
spare, if equipped). Inflate all tires to the
inflation pressure recommended by Ford
Motor Company.

You are strongly urged to buy a reliable
tire pressure gauge, as automatic
service station gauges may be
inaccurate. Ford recommends the use
of a digital or dial-type tire pressure
gauge rather than a stick-type tire
pressure gauge.

Use the recommended cold inflation
pressure for optimum tire performance
and wear. Under-inflation or
over-inflation may cause uneven
treadwear patterns.

WARNING

Under-inflation is the most common
cause of tire failures and may result

in severe tire cracking, tread separation
or blowout, with unexpected loss of
vehicle control and increased risk of
injury. Under-inflation increases sidewall
flexing and rolling resistance, resulting
in heat buildup and internal damage to
the tire. It also may result in unnecessary
tire stress, irregular wear, loss of vehicle
control and accidents. A tire can lose up
to half of its air pressure and not appear
to be flat!

Always inflate your tires to the Ford
recommended inflation pressure even
if it is less than the maximum inflation
pressure information found on the tire.
The Ford recommended tire inflation
pressure is 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's
seating position), or Tire Label which is
located on the B-Pillar or the edge of the
driver’s door. Failure to follow the tire
pressure recommendations can cause
uneven treadwear patterns and
adversely affect the way your vehicle
handles.

Maximum Inflation Pressure is the tire
manufacturer's maximum permissible
pressure and the pressure at which the
maximum load can be carried by the tire.
This pressure is normally higher than the
manufacturer’s recommended cold
inflation pressure, which can be found
on the Safety Compliance Certification
Label (affixed to either the door hinge
pillar, door-latch post, or the door edge

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that meets the door-latch post, next to
the driver's seating position), or Tire
Label which is located on the B-Pillar or
the edge of the driver’s door. The cold
inflation pressure should never be set
lower than the recommended pressure
on the Safety Compliance Certification
Label or Tire Label.

When weather temperature changes
occur, tire inflation pressures also
change. A 10°F (6°C) temperature drop
can cause a corresponding drop of 1 psi
(7 kPa) in inflation pressure. Check your
tire pressures frequently and adjust
them to the proper pressure which can
be found on the Safety Compliance
Certification Label or Tire Label.

To check the pressure in your tire(s):

1. Make sure the tires are cool, meaning
they are not hot from driving even a
mile.

Note: If you are checking tire pressure
when the tire is hot, (for example, driven
more than 1 mile [1.6 kilometers], never
bleed or reduce air pressure. The tires
are hot from driving and it is normal for
pressures to increase above
recommended cold pressures. A hot tire
at or below recommended cold inflation
pressure could be significantly
under-inflated.

Note: If you have to drive a distance to
get air for your tire(s), check and record
the tire pressure first and add the
appropriate air pressure when you get
to the pump. It is normal for tires to heat
up and the air pressure inside to go up
as you drive.

2. Remove the cap from the valve on
one tire, then firmly press the tire gauge
onto the valve and measure the
pressure.

3. Add enough air to reach the
recommended air pressure.

Note: If you overfill the tire, release air
by pressing on the metal stem in the
center of the valve. Then recheck the
pressure with your tire gauge.

4. Replace the valve cap.

5. Repeat this procedure for each tire,
including the spare.

Note: Some spare tires operate at a
higher inflation pressure than the other
tires. For T type mini-spare tires, see the
Dissimilar Spare Wheel and Tire
Assembly section. Store and maintain
at 60 psi (4.15 bar). For full-size and
dissimilar spare tires, see the Dissimilar
Spare Wheel and Tire Assembly
Information section. Store and maintain
at the higher of the front and rear
inflation pressure as shown on the Tire
Label.

6. Visually inspect the tires to make sure
there are no nails or other objects
embedded that could poke a hole in the
tire and cause an air leak.

7. Check the sidewalls to make sure
there are no gouges, cuts or bulges.

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Inspecting Your Tires and Wheel Valve
Stems

Periodically inspect the tire treads for
uneven or excessive wear and remove
objects such as stones, nails or glass
that may be wedged in the tread
grooves. Check the tire and valve stems
for holes, cracks, or cuts that may permit
air leakage and repair or replace the tire
and replace the valve stem. Inspect the
tire sidewalls for cracking, cuts, bruises
and other signs of damage or excessive
wear. If internal damage to the tire is
suspected, have the tire demounted and
inspected in case it needs to be repaired
or replaced. For your safety, tires that
are damaged or show signs of excessive
wear should not be used because they
are more likely to blow out or fail.

Improper or inadequate vehicle
maintenance can cause tires to wear
abnormally. Inspect all your tires,
including the spare, frequently, and
replace them if one or more of the
following conditions exist:

Tire Wear

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When the tread is worn down to one
sixteenth of an inch (2 millimeters), tires
must be replaced to help prevent your
vehicle from skidding and hydroplaning.
Built-in treadwear indicators, or wear
bars, which look like narrow strips of
smooth rubber across the tread will
appear on the tire when the tread is
worn down to one sixteenth of an inch
(2 millimeters).

When the tire tread wears down to the
same height as these wear bars, the tire
is worn out and must be replaced.

Damage

Periodically inspect the tire treads and
sidewalls for damage (such as bulges in
the tread or sidewalls, cracks in the
tread groove and separation in the tread
or sidewall). If damage is observed or
suspected have the tire inspected by a
tire professional. Tires can be damaged
during off-road use, so inspection after
off-road use is also recommended.

Age

WARNINGS

Tires degrade over time depending
on many factors such as weather,

storage conditions, and conditions of
use (load, speed, inflation pressure) the
tires experience throughout their lives.

You should replace your spare tire when
you replace the road tires or after six
years due to aging even if it has not
been used.

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WARNINGS

In general, tires should be replaced
after six years regardless of tread

wear. However, heat caused by hot
climates or frequent high loading
conditions can accelerate the aging
process and may require tires to be
replaced more frequently.

U.S. DOT Tire Identification Number

Both United States 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 U.S. DOT Tire Identification
Number for safety standard certification
and in case of a recall.

This begins with the letters DOT and
indicates that the tire 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.

Tire Replacement Requirements

Your vehicle is equipped with tires
designed to provide a safe ride and
handling capability.

WARNINGS

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

WARNINGS

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.

To reduce the risk of serious injury,
when mounting replacement tires

and wheels, you should not exceed the
maximum pressure indicated on the
sidewall of the tire to set the beads
without additional precautions listed
below. If the beads do not seat at the
maximum pressure indicated,
re-lubricate and try again.

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WARNINGS

When inflating the tire for mounting
pressures up to 20 psi (1.38 bar)

greater than the maximum pressure on
the tire sidewall, the following
precautions must be taken to protect
the person mounting the tire:

•

Make sure that you have the correct
tire and wheel size.

•

Lubricate the tire bead and wheel
bead seat area again.

•

Stand at a minimum of 12 ft (3.66 m)

away from the wheel and tire
assembly.

•

Use both eye and ear protection.

WARNINGS

For a mounting pressure more than
20 psi (1.38 bar) greater than the

maximum pressure, a Ford dealer or
other tire service professional should do
the mounting.

WARNINGS

Always inflate steel carcass tires
with a remote air fill with the person

inflating standing at a minimum of 12 ft
(3.66 m) away from the wheel and tire
assembly.

Important: Remember to replace the
wheel valve stems when the road tires
are replaced on your vehicle.

The two front tires or two rear tires
should generally be replaced as a pair.

The tire pressure sensors mounted in
the wheels (originally installed on your
vehicle) are not designed to be used in
aftermarket wheels.

The use of wheels or tires not
recommended by Ford Motor Company
may affect the operation of your tire
pressure monitoring system.

If the tire pressure monitoring system
indicator is flashing, the system is
malfunctioning. Your replacement tire
might be incompatible with your tire
pressure monitoring system, or some
component of the system may be
damaged.

Safety Practices

WARNINGS

If your vehicle is stuck in snow,
mud or sand, do not rapidly spin

the tires; spinning the tires can tear the
tire and cause an explosion. A tire can
explode in as little as three to five
seconds.

Do not spin the wheels at over
34 mph (55 km/h). The tires may

fail and injure a passenger or bystander.

Driving habits have a great deal to do
with your tire mileage and safety.

*Observe posted speed limits

*Avoid fast starts, stops and turns

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*Avoid potholes and objects on the road

*Do not run over curbs or hit the tire
against a curb when parking

Highway Hazards

No matter how carefully you drive
there’s always the possibility that you
may eventually have a flat tire on the
highway. Drive slowly to the closest safe
area out of traffic. This may further
damage the flat tire, but your safety is
more important.

If you feel a sudden vibration or ride
disturbance while driving, or you suspect
your tire or vehicle has been damaged,
immediately reduce your speed. Drive
with caution until you can safely pull off
the road. Stop and inspect the tires for
damage. If you cannot detect a cause,
have the vehicle towed to the nearest
repair facility or tire dealer to have the
vehicle inspected.

Tire and Wheel Alignment

A bad jolt from hitting a curb or pothole
can cause the front end of your vehicle
to become misaligned or cause damage
to your tires. If your vehicle seems to
pull to one side when you’re driving, the
wheels may be out of alignment. Have
an authorized dealer check the wheel
alignment periodically.

Wheel misalignment in the front or the
rear can cause uneven and rapid
treadwear of your tires and should be
corrected by an authorized dealer.
Front-wheel drive vehicles and those
with an independent rear suspension
may require alignment of all four wheels.

The tires should also be balanced
periodically. An unbalanced tire and
wheel assembly may result in irregular
tire wear.

Tire Rotation

Note: If your tires show uneven wear
ask an authorized dealer to check for
and correct any wheel misalignment,
tire imbalance or mechanical problem
involved before tire rotation.

Note: Your vehicle may be equipped
with a dissimilar spare wheel and tire
assembly. A dissimilar spare wheel and
tire assembly is defined as a spare
wheel and tire assembly that is different
in brand, size or appearance from the
road tires and wheels. If you have a
dissimilar spare wheel and tire assembly
it is intended for temporary use only and
should not be used in a tire rotation.

Note: After having your tires rotated,
inflation pressure must be checked and
adjusted to the vehicle requirements.

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Rotating your tires at the recommended
interval (as indicated in the scheduled
maintenance information) will help your
tires wear more evenly, providing better
tire performance and longer tire life.
Sometime irregular tire wear can be
corrected by rotating the tires.

Front-wheel drive and All-wheel drive
vehicles (front tires on the left side of
the diagram).

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USING SUMMER TIRES

Summer tires provide superior performance
on wet and dry roads. Summer tires do not
have the Mud and Snow (M+S or M/S) tire
traction rating on the tire side wall. Since
summer tires do not have the same traction
performance as All-season or Snow tires, we
do not recommend using summer tires when
temperatures drop to approximately 45°F
(7°C) or below (depending on tire wear and
environmental conditions) or in snow and ice
conditions. Like any tire, summer tire
performance is affected by tire wear and
environmental conditions. If you must drive
in those conditions, we recommend using
Mud and Snow (M+S, M/S), All-season or
Snow tires.

Always store your summer tires indoors at
temperatures above 19°F (-7°C). The rubber
compounds used in these tires lose flexibility
and may develop surface cracks in the tread
area at temperatures below 19°F (-7°C). If the
tires have been subjected to 19°F (-7°C) or
less, warm them in a heated space to at least
41°F (5°C) for at least 24 hours before
installing them on a vehicle, or moving the

vehicle with the tires installed, or checking
tire inflation. Do not place tires near heaters
or heating devices used to warm the room
where the tires are stored. Do not apply heat
or blow heated air directly on the tires.
Always inspect the tires after storage periods
and before use.

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USING SNOW CHAINS

WARNING

Snow tires must be the same size, load
index, and speed rating as those

originally provided by Ford. 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. Additionally, the
use of non-recommended tires and wheels
could cause steering, suspension, axle,
transfer case, or power transfer unit failure.
It is also strongly advised to follow the Ford
recommended tire 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’s
seating position), or Tire Label which is
located on the B-Pillar or the edge of the
driver door. Failure to follow the tire pressure
recommendations can cause uneven
treadwear patterns and adversely affect the
way your vehicle handles.

The tires on your vehicle may have
all-weather treads to provide traction in rain
and snow. However, in some climates you
may need to use snow chains.

Your vehicle may not be compatible with
snow chain or cable usage with the
factory-fitted wheels and tires. Only certain
chains or snow cables have been approved
by Ford as safe for use on your vehicle with
the following wheel and tire combination(s):
18x8.0 wheels with 235/60R18 tires. You
should only install chains or cables sized at
10 mm or less in dimension as measured on
the sidewall of your tire. Not all S-class snow
chains meet these restrictions. Chains of this
size restriction will include a tensioning
device. The chains should be mounted in
pairs on the front tires only. If you need to
use chains, it is recommended that steel
wheels (of the same size and specification)
be used, as chains may chip aluminum
wheels.

Follow these guidelines when using traction
devices:

•

If possible, avoid fully loading your
vehicle

•

Purchase chains or cables from a
manufacturer that clearly labels body to
tire dimension restrictions.

•

When driving with snow chains or cables,
do not exceed 30 mph (48 km/h) or the
maximum speed recommended by the
chain manufacturer; whichever is less.

•

Drive cautiously. If you hear the chains
or cables rub or bang against the vehicle,
stop and retighten them. If this does not
work, remove the chains or cables and
prevent vehicle damage.

•

Remove the chains or cables when they
are no longer needed. Do not use the
chains or cables on dry roads.

•

If a temporary spare tire is mounted on
your vehicle, do not use snow chains on
the axle with the temporary spare tire.

If you have any questions regarding snow
tires or snow chains, please contact your
authorized dealer.

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TIRE PRESSURE MONITORING
SYSTEM

WARNING

The tire pressure monitoring system is
not a substitute for manually checking

tire pressures. You should periodically check
tire pressures using a pressure gauge.
Failure to correctly maintain tire pressures
could increase the risk of tire failure, loss of
control, vehicle rollover and personal injury.

Note:  You should only use tire sealants in
roadside emergencies as they may cause
damage to the tire pressure monitoring
system sensor. 

Note:  If the tire pressure monitoring system
sensor becomes damaged, it may not
function.

Each tire, including the spare (if
provided), should be checked
monthly when cold and inflated to

the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard
or tire inflation pressure label. (If your vehicle
has tires of a different size than the size
indicated on the vehicle placard or tire
inflation pressure label, you should
determine the proper tire inflation pressure
for those tires).

As an added safety feature, your vehicle has
been equipped with a Tire Pressure
Monitoring System (TPMS) that illuminates a
low tire pressure telltale when one or more
of your tires is significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces fuel
efficiency and tire tread life, and may affect
the vehicle’s handling and stopping ability.

Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the
driver’s responsibility to maintain correct tire
pressure, even if under-inflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.

Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the
system detects a malfunction, the telltale will
flash for approximately one minute and then
remain continuously illuminated. This
sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists.

When the malfunction indicator is illuminated,
the system may not be able to detect or
signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of
reasons, including the installation of
replacement or alternate tires or wheels on
the vehicle that prevent the TPMS from

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functioning properly. Always check the TPMS
malfunction telltale after replacing one or
more tires or wheels on your vehicle to
ensure that the replacement or alternate tires
and wheels allow the TPMS to continue to
function properly.

This device complies with Part 15 of the FCC
Rules and with License exempt RSS
Standards of Industry Canada. Operation is
subject to the following two conditions:

1. This device may not cause harmful

interference, and

2. This device must accept any interference

received, including interference that may
cause undesired operation.

Note: Changes or modifications not
expressively approved by the party
responsible for compliance could void the
user's authority to operate the equipment.
The term "IC:" before the radio certification
number only signifies that Industry Canada
technical specifications were met.

Changing Tires With a Tire Pressure
Monitoring System

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Note: Each road tire is equipped with a tire
pressure sensor located inside the wheel
and tire assembly cavity. The pressure
sensor is attached to the valve stem. The
pressure sensor is covered by the tire and
is not visible unless the tire is removed. Take
care when changing the tire to avoid
damaging the sensor.

You should always have your tires serviced
by an authorized dealer.

Check the tire pressure periodically (at least
monthly) using an accurate tire gauge. See
When Inflating Your Tires in this chapter.

Understanding Your Tire Pressure
Monitoring System

E250820

The tire pressure monitoring system
measures pressure in your road tires and
sends the tire pressure readings to your
vehicle. You can view the tire pressure
readings through the information display.
See General Information (page 118). The low
tire pressure warning light will turn on if the
tire pressure is significantly low. Once the

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light is illuminated, your tires are
under-inflated and need to be inflated to the
manufacturer’s recommended tire pressure.
Even if the light turns on and a short time
later turns off, your tire pressure still needs
to be checked.

When Your Temporary Spare Tire is
Installed

When one of your road tires needs to be
replaced with the temporary spare, the
system will continue to identify an issue to
remind you that the damaged road wheel
and tire assembly needs to be repaired and
put back on your vehicle.

To restore the full function of the tire
pressure monitoring system, have the
damaged road wheel and tire assembly
repaired and remounted on your vehicle.

When You Believe Your System is Not
Operating Properly

The main function of the tire pressure
monitoring system is to warn you when your
tires need air. It can also warn you in the
event the system is no longer capable of
functioning as intended. See the following
chart for information concerning your tire
pressure monitoring system:

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Customer action required

Possible cause

Low tire pressure warning light

Make sure tires are at the proper pressure. See Inflating your tires
in this chapter. After inflating your tires to the manufacturer’s
recommended pressure as shown on the Tire Label (located on
the edge of driver’s door or the B-Pillar), the vehicle must be driven
for at least two minutes over 20 mph (32 km/h) before the light
turns off.

Tire(s) under-inflated

Solid warning light

Repair the damaged road wheel and tire assembly and reinstall
it on the vehicle to restore system function. For a description on
how the system functions, see When Your Temporary Spare Tire
is Installed in this section.

Spare tire in use

If the tires are properly inflated and the spare tire is not in use but
the light remains on, contact your authorized dealer as soon as
possible.

TPMS malfunction

Repair the damaged road wheel and tire assembly and reinstall
it on the vehicle to restore system function. For a description on
how the system functions, see When Your Temporary Spare Tire
is Installed in this section.

Spare tire in use

Flashing warning light

If the tires are properly inflated and the spare tire is not in use but
the light remains on, contact your authorized dealer as soon as
possible.

TPMS malfunction

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Wheels and Tires

When Inflating Your Tires

WARNING

Do not use the tire pressure displayed
in the information display as a tire

pressure gauge. Failure to follow this
instruction could result in personal injury or
death.

When putting air into your tires (such as at a
gas station or in your garage), the tire
pressure monitoring system may not respond
immediately to the air added to your tires.

It may take up to two minutes of driving over
20 mph (32 km/h) for the light to turn off after
you have filled your tires to the
recommended inflation pressure.

How Temperature Affects Your Tire
Pressure

The tire pressure monitoring system monitors
tire pressure in each pneumatic tire. While
driving in a normal manner, a typical
passenger tire inflation pressure may
increase about 2–4 psi (14–28 kPa) from a
cold start situation. If the vehicle is stationary

overnight with the outside temperature
significantly lower than the daytime
temperature, the tire pressure may decrease
about 3 psi (21 kPa) for a drop of 30°F (17°C)
in ambient temperature. This lower pressure
value may be detected by the tire pressure
monitoring system as being significantly
lower than the recommended inflation
pressure and activate the system warning
light for low tire pressure. If the low tire
pressure warning light is on, visually check
each tire to verify that no tire is flat. If one or
more tires are flat, repair as necessary.
Check the air pressure in the road tires. If
any tire is under-inflated, carefully drive the
vehicle to the nearest location where air can
be added to the tires. Inflate all the tires to
the recommended inflation pressure.

CHANGING A ROAD WHEEL

 (If

Equipped)

WARNING

If the tire pressure monitor sensor
becomes damaged it may not function.

Note: You should only use tire sealants in
roadside emergencies as they may cause
damage to the tire pressure monitoring
system sensor.

Note: The tire pressure monitoring system
indicator light illuminates when the spare
tire is in use. To restore the full function of
the monitoring system, all road wheels
equipped with tire pressure monitoring
sensors must be mounted on the vehicle.

If you get a flat tire when driving, do not
apply the brake heavily. Instead, gradually
decrease your speed. Hold the steering
wheel firmly and slowly move to a safe place
on the side of the road.

Have a flat serviced by an authorized dealer
in order to prevent damage to the tire
pressure monitoring system sensors. See
Tire Pressure Monitoring System (page 369).
Replace the spare tire with a road tire as
soon as possible. During repairing or
replacing of the flat tire, have an authorized
dealer inspect the tire pressure monitoring
system sensor for damage.

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MKX (CD9) Canada/United States of America, enUSA, Edition date: 201707, Second Printing

Wheels and Tires

Dissimilar Spare Wheel and Tire
Assembly Information

 (If Equipped)

WARNING

Failure to follow these guidelines could
result in an increased risk of loss of

vehicle control, injury or death.

If you have a dissimilar spare wheel and tire,
then it is intended for temporary use only.
This means that if you need to use it, you
should replace it as soon as possible with a
road wheel and tire assembly that is the
same size and type as the road tires and
wheels that were originally provided by Ford.
If the dissimilar spare tire or wheel is
damaged, it should be replaced rather than
repaired.

A dissimilar spare wheel and tire assembly
is defined as a spare wheel and tire assembly
that is different in brand, size or appearance
from the road tires and wheels and can be
one of three types:

1. T-type mini-spare: This spare tire begins
with the letter T for tire size and may have
Temporary Use Only molded in the sidewall.

2. Full-size dissimilar spare with label on
wheel: This spare tire has a label on the
wheel that states: THIS WHEEL AND TIRE
ASSEMBLY FOR TEMPORARY USE ONLY.

When driving with one of the dissimilar spare
tires listed above, do not:

•

Exceed 50 mph (80 km/h).

•

Load the vehicle beyond maximum
vehicle load rating listed on the Safety
Compliance Label.

•

Tow a trailer.

•

Use snow chains on the end of the
vehicle with the dissimilar spare tire.

•

Use more than one dissimilar spare tire
at a time.

•

Use commercial car washing equipment.

•

Try to repair the dissimilar spare tire.

Use of one of the dissimilar spare tires listed
above at any one wheel location can lead to
impairment of the following:
•

Handling, stability and braking
performance.

•

Comfort and noise.

•

Ground clearance and parking at curbs.

•

Winter weather driving capability.

•

Wet weather driving capability.

•

All-wheel driving capability, if applicable.

3. Full-size dissimilar spare without label
on wheel

When driving with the full-size dissimilar
spare wheel and tire assembly, do not:
•

Exceed 70 mph (113 km/h).

•

Use more than one dissimilar spare
wheel and tire assembly at a time.

•

Use commercial car washing equipment.

•

Use snow chains on the end of the
vehicle with the dissimilar spare wheel
and tire assembly.

The usage of a full-size dissimilar spare
wheel and tire assembly can lead to
impairment of the following:
•

Handling, stability and braking
performance.

•

Comfort and noise.

•

Ground clearance and parking at curbs.

•

Winter weather driving capability.

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MKX (CD9) Canada/United States of America, enUSA, Edition date: 201707, Second Printing

Wheels and Tires