tire pressure FORD GT 2018 Owner's Manual

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. 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, 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 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
195
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and Tires

WARNINGS
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. The use of
non-recommended tires and
wheels could cause steering,
suspension, axle, transfer case or
power transfer unit failure. If you
have questions regarding tire
replacement, contact your
authorized dealer as soon as
possible. 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. 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. 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.
It is recommended that the two
front tires or two rear tires
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.
196
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and Tires

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, your
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.
*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 a tire is
under-inflated or damaged, see
the instructions on use of the tire
sealant and inflater kit at the
beginning of this section. If the kit
cannot provide a temporary tire
inflation, contact an authorized
dealer.
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.
197
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and Tires

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 (if
equipped) 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.
USING SUMMER TIRES
Your Ford GT was built with Michelin Pilot
Sport Cup 2 tires which are a summer tire.
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 about 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.
USING SNOW CHAINS
WARNINGS
If you choose to install snow tires on
your vehicle, they must be the same
size, construction, and load range as
the original tires listed on the tire placard,
and they must be installed on all four
wheels. Mixing tires of different size or
construction on your vehicle can adversely
affect your vehicle's handling and braking,
and may lead to loss of vehicle control. Do not use snow chains or cables on
this vehicle as they may cause
damage to your vehicle which may
lead to loss of vehicle control. Snow chains have not been approved for
use on your vehicle.
TIRE PRESSURE MONITORING
SYSTEM
WARNINGS
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. Do not use tire sealants as they may
damage the tire pressure monitoring
system.
198
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and Tires

WARNINGS
If the tire pressure monitor sensor
becomes damaged it may not
function.
Each tire 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 flashes for
approximately one minute and then
remains illuminated. This sequence
continues 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 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 Licence exempt RSS
Standards of Industry Canada. Operation
is subject to the following two conditions:
•
This device may not cause harmful
interference, and
• This device must accept any
interference received, including
interference that may cause undesired
operation. WARNING
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. 199
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and Tires

Changing Tires With a Tire
Pressure Monitoring System
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 Inflating Your Tires in this
chapter. Understanding Your Tire Pressure
Monitoring System 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 70). The
low tire pressure warning light turns on if
the tire pressure is significantly low. Once
the 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 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:
200
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and TiresE142549 E250820

Customer action required
Possible cause
Low tire pressure
warning light
Make sure tires are at the proper pres-
sure. 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
If the tires are properly inflated and the
light remains on, contact your authorized
dealer as soon as possible.
TPMS malfunction
If the tires are properly inflated and the
light remains on, contact your authorized
dealer as soon as possible.
TPMS malfunction
Flashing warning
light
When Inflating Your Tires
Note: Do not use the tire pressure display
screen as a tire pressure gauge, this can
result in over or under inflation of a tire.
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. When 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.
201
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and Tires

CHANGING A ROAD WHEEL
Important Information for Lifting
or Jacking
A vehicle jack is not included with your
vehicle. If you are on the road and need to
change a wheel, it is recommended that
you contact the Ford GT Concierge to
obtain roadside assistance. See Special
Notices (page 10). Front lift points
A
Middle lift points
B
Rear lift points
C
To avoid damage to your vehicle, use a low
profile hydraulic jack when removing a road
wheel. Only place the jack on one of the
alloy lifting posts when lifting your vehicle.
Do not lift your vehicle on the carbon fiber
panels.
Note: It is recommended that an interface
be used between the alloy lifting point and
the vehicle jack (for example, a hockey puck
or dense rubber pad). DRIVING AT HIGH SPEED
Tire Pressure - Speeds Greater
Than
165 mph (265 km/h) WARNING
Always re-inflate tires to
recommended tire pressures before
the vehicle is operated on-road. The
recommended pressure is located on the
tire label or safety certification label,
located on the B-pillar, inside the driver's
door. Note:
When driving over
165 mph
(265 km/h), be sure to check and adjust
your tire pressures accordingly.
Note: If you are not sure about the proper
tire inflation pressures, contact an
authorized dealer or service center. Your tires may require additional inflation
pressure for operation at speeds greater
than
165 mph (265 km/h). If this label is
present on your vehicle, you must adjust
the tire pressure accordingly.
202
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Wheels and TiresE228623 E247515

Oils and Fluids
In many cases, fluid discoloration is a
normal operating characteristic and, by
itself, does not necessarily indicate a
concern or that the fluid needs to be
changed. However, a qualified expert, such
as the factory-trained technicians at your
dealership, should inspect discolored fluids
that also show signs of overheating or
foreign material contamination
immediately.
Make sure to change your vehicle
’s oils and
fluids at the specified intervals or in
conjunction with a repair.
NORMAL SCHEDULED MAINTENANCE
Normal Maintenance Intervals Annually or Every 5,000 mi (8,000 km)
Change oil and filter.
Inspect tires and check tire pressures.
Inspect the brake pads, rotors, hoses, brake cooling duct hoses and check parking brake
function. Check brake fluid level.
Inspect the engine cooling system strength and hoses. Check coolant level.
Inspect the exhaust system and heat shields.
Inspect the accessory drive belts.
Inspect the steering linkage, ball joints, suspension and tie-rod ends.
Inspect the wiper blades. Check washer fluid level.
Inspect hinges and latches. Lubricate if needed.
Inspect vehicle battery and state of charge.
Check the hydraulic fluid level.
Check operation of all lights.
Check operation of warning indicators inside the instrument cluster.
Check for any fluid leaks.
275
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Scheduled Maintenance

Before Operating Your Vehicle at High
Speeds:
•
Verify your tires have the correct
pressures See Technical
Specifications (page 203).
• Inspect wheels and tires for wear and
damage. Replace any damaged wheels
and tires.
• Check and set lug nut torque. See
Technical Specifications (page 203).
• Verify fluid levels for oil, coolant, brake,
and hydraulic fluid. See Maintenance
(page
157).
• Change the oil and filter prior to use on
the track. After Operating Your vehicle at High
Speeds and Track Day Driving, Do the
Following:
•
Set tire pressures to specification.
• Check and set lug nut torque. See
Technical Specifications (page 203).
• Check all fluid levels.
• If you drive your car for an extended
period of time at high speed or on the
track for an extended time, change the
oil and filter.
SCHEDULED MAINTENANCE RECORD 277
Ford GT (CGX), enUSA, Edition date: 201711, First Printing Scheduled MaintenanceE146852
Repair Order #:Distance:
Engine hours (optional): Multi-point inspection (recommended): Signature:
Dealer stamp