brake FORD GT 2021 Service Manual

Protected Components
Fuse
Rating
Fuse or
Relay
Number
Not used (spare).
20 A 1
5
Not used (spare).
10 A 2
6
Not used (spare).
10 A 2
7
Not used (spare).
10 A 2
8
Brake on-off switch.
10 A 2
9
Push button start switch.
5 A 2
10
Right-hand and left-hand exterior door locks and handles.
5 A 2
11
RF transceiver module.
7.5 A 2
12
Steering column control module logic.
7.5 A 2
13
Smart datalink connector logic.
Instrument cluster.
Extended power mode module.
10 A 2
14
Smart datalink connector power.
10 A 2
15
Decklid release relay.
15 A 1
16
Combined sensor module.
5 A 2
17
Telematics control unit - modem.
5 A 2
18
Not used (spare).
7.5 A 2
19
Front damper controllers.
7.5 A 2
20
Shift indicator module head up display.
5 A 2
21
Interior temperature sensor.
Extended power mode module.
5 A 2
22
Right-hand window switch illumination.
10 A 1
23
Right-hand door lock switch illumination.
150
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing Fuses

GENERAL INFORMATION
Have your Ford GT serviced regularly to
help maintain its roadworthiness and
resale value. There is a network of Ford GT
service dealers that are certified to help
you with their professional servicing
expertise. We believe that their specially
trained technicians are best qualified to
service your vehicle properly and expertly.
They are supported by a range of highly
specialized tools developed specifically
for servicing the Ford GT.
If your vehicle requires professional service,
an authorized dealer can provide the
necessary parts and service. Check your
warranty information to find out which
parts and services are covered.
Use only recommended fuels, lubricants,
fluids and service parts conforming to
specifications. Motorcraft® parts are
designed and built to provide the best
performance in your vehicle.
Precautions
•
Do not work on a hot engine.
• Make sure that nothing gets caught in
moving parts.
• Do not work on a vehicle with the
engine running in an enclosed space,
unless you are sure you have enough
ventilation.
• Keep all open flames and other burning
material (such as cigarettes) away
from the battery and all fuel related
parts.
Working with the Engine Off
1. Set the parking brake and shift to park
(P).
2. Switch off the engine.
3. Block the wheels. Working with the Engine On WARNING: To reduce the risk of
vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.
1. Set the parking brake and shift to park
(P).
2. Block the wheels.
OPENING AND CLOSING THE
HOOD
Opening the Front Hood 154
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing MaintenanceE229939

UNDER HOOD OVERVIEW
Negative jump start post. See Jump Starting the Vehicle (page 134).
A.
Brake fluid reservoir.
See Brake Fluid Check (page 162).
B.
Cabin air filter access door. See
Cabin Air Filter (page 85).
C.
Washer fluid reservoir. See
Windshield Washers (page 61).
D.
Front hood sensor. See
Warning Lamps and Indicators (page 69).
E.
Hydraulic fluid reservoir for power steering, active aero and active suspension.
See
Power Steering Fluid Check (page 163).
F.
Positive jump start post. See
Jump Starting the Vehicle (page 134).
G.
Front power distribution box. See
Fuse Specification Chart (page 143).
H.
Engine coolant reservoir.
See Engine Coolant Check (page 158).
I.
Rear power distribution box 2. See
Fuse Specification Chart (page 143).
J.
Rear power distribution box 1. See
Fuse Specification Chart (page 143).
K.
Oil cap, reservoir and dipstick. See
Engine Oil Dipstick (page 157).
L.
156
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing MaintenanceE270336

ENGINE OIL DIPSTICK
MINA
MAX
B
ENGINE OIL CHECK
Note: Use a thick cloth to protect your hand
when removing the oil tank cap and dipstick.
To check the engine oil level consistently
and accurately, do the following:
1. Make sure the parking brake is on. Make
sure the transmission is in park (P) or
neutral (N).
2. Run the engine until it reaches normal operating temperature (Coolant
temperature of 190°F (87.7°C) or
higher).
3. Turn the engine off and wait two to three minutes.
4. Make sure that your vehicle is on level ground.
5. Open the rear hatch. See
Opening
and Closing the Hood (page 154).
6. Unscrew the oil tank cap to remove the
dipstick and wipe it with a clean,
lint-free cloth. See
Under Hood
Overview (page 156). 7. Replace the cap and dipstick and
remove it again to check the oil level.
See
Engine Oil Dipstick (page 157).
8. Make sure that the oil level is between
the minimum and the maximum marks.
If the oil level is at the minimum mark,
add oil immediately. See
Capacities
and Specifications (page 205).
9. If the oil level is correct, replace the cap
and dipstick and make sure it is fully
tightened.
Note: Do not remove the dipstick when the
engine is running.
Note: If the oil level is between the
maximum and minimum marks, the oil level
is acceptable. Do not add oil.
Note: The oil consumption of new engines
reaches its normal level after approximately
3,000 mi (5,000 km)
.
Note: High performance vehicles tend to
be driven in such a way the engine
experiences high speed and high load. As a
result, some oil consumption could occur
between oil changes. We recommend that
you check the oil level on a regular basis.
Adding Engine Oil WARNING: Do not remove the filler
cap when the engine is running. WARNING:
Do not add engine oil
when the engine is hot. Hot engine oil
can burn you badly.
Note: Use a thick cloth to protect your hand
when removing the oil tank cap and dipstick.
Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that may
not be covered by the vehicle Warranty.
To top up the engine oil level do the
following:
157
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing MaintenanceE230019

If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating
cylinder operation. Each disabled cylinder
acts as an air pump and cools the engine.
When this occurs, your vehicle still
operates, however:
•
Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
When Fail-Safe Mode Is Activated WARNING: Fail-safe mode is for
use during emergencies only. Operate
your vehicle in fail-safe mode only as
long as necessary to bring your vehicle
to rest in a safe location and seek
immediate repairs. When in fail-safe
mode, your vehicle will have limited
power, will not be able to maintain
high-speed operation, and may
completely shut down without warning,
potentially losing engine power, power
steering assist, and power brake assist,
which may increase the possibility of a
crash resulting in serious injury. WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. Your vehicle has limited engine power
when in the fail-safe mode, drive your
vehicle with caution. Your vehicle does not
maintain high-speed operation and the
engine may operate poorly.
Remember that the engine is capable of
automatically shutting down to prevent
engine damage. In this situation:
1. Pull off the road as soon as safely
possible and switch the engine off.
2. Contact the Ford GT Concierge to obtain assistance.
See About This
Manual (page 5).
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level. If the coolant level is at or below the minimum mark,
add prediluted coolant immediately.
5. When the engine temperature cools, you can re-start the engine. Have your
vehicle checked as soon as possible to
minimize engine damage.
Note: Driving your vehicle without repair
increases the chance of engine damage.
Engine Coolant Temperature
Management WARNING:
To reduce the risk of
crash and injury, be prepared that the
vehicle speed may reduce and the
vehicle may not be able to accelerate
with full power until the coolant
temperature reduces.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
161
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing Maintenance

You may notice a reduction in vehicle
speed caused by reduced engine power in
order to manage the engine coolant
temperature. Your vehicle may enter this
mode if certain high-temperature and
high-load conditions take place. The
amount of speed reduction depends on
vehicle loading, slope and ambient
temperature. If this occurs, there is no
need to pull off the road. You can continue
to drive your vehicle.
The air conditioning may automatically
turn on and off during severe operating
conditions to protect the engine from
overheating. When the coolant
temperature decreases to the normal
operating temperature, the air conditioning
turns on.
If the coolant temperature gauge moves
fully into the red zone, or if the coolant
temperature warning or service engine
soon messages appear in your information
display, do the following:
1. Pull off the road as soon as safely
possible and shift the transmission into
park (P).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. After
several minutes, if the temperature
does not drop, follow the remaining
steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
4. If the coolant level is at or below the minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the engine and continue. AUTOMATIC TRANSMISSION
FLUID CHECK
If required, have an authorized dealer check
and change the transmission fluid at the
correct service interval. See Scheduled
Maintenance (page 279).
The automatic transmission does not have
a transmission fluid dipstick.
Refer to your scheduled maintenance
information for scheduled intervals for fluid
checks and changes. Your transmission
does not consume fluid. However, if the
transmission slips, shifts slowly or if you
notice a sign of leaking fluid, contact an
authorized dealer.
Do not use supplemental transmission
fluid additives, treatments or cleaning
agents. The use of these materials may
affect transmission operation and result
in damage to internal transmission
components.
BRAKE FLUID CHECK WARNING:
Do not use any fluid
other than the recommended brake fluid
as this will reduce brake efficiency. Use
of incorrect fluid could result in the loss
of vehicle control, serious personal injury
or death. WARNING:
Only use brake fluid
from a sealed container. Contamination
with dirt, water, petroleum products or
other materials may result in brake
system damage or failure. Failure to
adhere to this warning could result in the
loss of vehicle control, serious personal
injury or death.
162
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing Maintenance

CHANGING THE 12V BATTERY
WARNING: Battery posts,
terminals and related accessories
contain lead and lead compounds,
chemicals known to the State of
California to cause cancer and
reproductive harm. Wash your hands
after handling
.
The Ford GT uses a lithium Ion battery.
The battery is inside the right front fender.
For battery maintenance or replacement,
contact an authorized dealer.
When a battery replacement is required,
you must use a recommended
replacement battery that matches the
electrical requirements of the vehicle.
Note: If you add electrical accessories or
components to the vehicle, it may adversely
affect the low voltage battery performance
and durability. This may also affect the
performance of other electrical systems in
the vehicle.
Because your vehicle ’s engine is
electronically controlled by a computer,
some control conditions are maintained
by power from the battery. When the
battery is disconnected or a new battery
is installed, the engine must relearn its idle
and fuel trim strategy for optimum
driveability and performance.
To restore the settings, do the following:
1. Apply the parking brake.
2. Shift into park (P) or neutral (N).
3. Switch off all accessories.
4. Press the brake pedal and start your vehicle. 5. Run the engine until it reaches normal
operating temperature. As the engine
is warming up, complete the following:
Reset the clock.
See Audio System
(page 216). Reset the radio station
presets. See Audio System (page 216).
6. Allow the engine to idle for at least one
minute.
7. Drive the vehicle at least 10 mi (16 km)
to completely relearn the idle trim and
fuel trim strategy.
Note: If you do not allow the engine to
relearn the idle and fuel trim strategy, the
idle quality of your vehicle may be adversely
affected until the engine computer
eventually relearns the idle trim and fuel
trim strategy.
Make sure that you dispose of old batteries
in an environmentally friendly way. Seek
advice from your local authority about
recycling old batteries.
Battery Charger and Maintainer
If you plan to have your GT parked or in
storage for more than two weeks without
driving it, connect the Li-Ion compatible
battery charger and maintainer provided.
There are two methods to connect the
charger:
Method 1: Rear Hatch Storage
Compartment Power Point
Your Ford GT has a 12V power point in the
rear hatch storage area that allows you to
conveniently plug in to charge and
maintain your battery.
Note: You can only the use the hatch
storage power point for battery charging.
The one inside the passenger compartment
on the side of the center console will not
work for this purpose.
164
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing Maintenance

Note:
The GT battery charger and
maintainer is designed for the Lithium
battery used on Ford GT. Use only this
device. A charger designed for a lead acid
battery may damage the lithium battery in
your GT.
Battery Management System
The battery management system monitors
battery conditions and takes actions to
extend battery life. If excessive battery
drain is detected, the system temporarily
disables the electrical systems to protect
the battery.
Use the charger to bring the battery back
to full charge.
Electrical Accessory Installation
Note: If you add electrical accessories or
components to the vehicle, it may adversely
affect battery performance and durability.
This may also affect the performance of
other electrical systems in the vehicle.
ADJUSTING THE HEADLAMPS
Headlamp Aim Target 8 ft (2.4 m).
A
Center height of lamp to ground.
B 25 ft (7.6 m).
C
Horizontal reference line.
D
Vertical Aim Adjustment
1. Park your vehicle on a level surface approximately 25 ft (7.6 m) away from
a vertical wall or screen.
2. Apply the parking brake.
3. Measure the height from the center of the headlamp to the ground.
Note: There may be an identifying mark on
the lens to help you locate the center of the
headlamp bulb.
4. Mark a horizontal reference line on the
vertical wall or screen that is a
minimum of
8 ft (2.4 m) long.
5. Switch the low beam headlamps on. 6.
There is a distinct change from light to
dark in the left-hand portion of the
headlamp beam pattern. Position the
top edge of this cut-off
2 in (5 cm)
below the horizontal reference line.
166
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing MaintenanceE142592 E209825

Operating at High Speeds and on
Track Days
Your vehicle is capable of sustained high
speeds and track day driving. Follow the
guidelines for breaking in the tires and
powertrain before operating your vehicle
at high speeds or on a track. See
Breaking-In (page 131).
Note: Obey all traffic laws and only operate
your vehicle at locations designed to do so
safely.
Note: For a detailed description of what
your vehicle's New Limited Warranty covers,
see the Ford GT Warranty Guide provided
to you along with your owner's manual.
Before operating your vehicle at high
speeds, follow these guidelines:
Overall Vehicle Preparation:
• Inspect wheels and tires for wear and
damage. Replace any damaged wheels
or tires.
• Torque the wheel lug nuts to the proper
specification:
150 lb.ft (204 Nm).
• Inspect all aerodynamic grilles and
cooling system components for
damage. Make sure there is no debris
or non-factory installed protective
films or equipment that could obstruct
airflow.
• Verify your tires have the correct tire
pressure. See the section that follows
for tire pressure specifications.
• Do not operate your vehicle at high
speeds while carrying cargo. Brake System Preparation:
•
Your vehicle has carbon ceramic brake
rotors that require extra care and
inspection methods including
measuring their weight and reviewing
the surface condition.
• Inspect the brake system for wear or
damage. Replace worn or below
specification brake pads, rotors or
cooling hoses. Make sure that the cross
drilling holes in the rotors are open and
free of debris.
• Prior to track use, replace the brake
fluid with fresh Motorcraft/Ford DOT
4 LV High Performance Brake Fluid or
other DOT compliant fluid with a dry
boiling point greater than
500°F
(260°C) from a sealed container. Do
not use silicone or DOT 5 brake fluids.
Powertrain Preparation:
• Make sure the engine oil, coolant,
transmission fluids and hydraulic
system fluid have received proper
maintenance, are clean and are at the
appropriate capacity.
• Allow the powertrain to warm up and
reach normal operating temperature.
Your vehicle has electronic controls to
reduce power or limit engine RPM to
reduce powertrain temperatures if
required.
• Regularly check the engine oil level
during the event. Maintain the engine
oil level at or near the max mark on the
engine oil dipstick.
See Engine Oil
Check (page 157).
Note: To obtain service, please contact the
Ford GT Concierge and they will advise you
of the nearest Certified Ford GT Service
Dealership.
See About This Manual (page
5).
169
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing Track Use

WHAT IS LAUNCH CONTROL
Note:
Only use this feature in a controlled
environment, such as a track. Launch control
is not for use in normal driving.
Note: Launch control is not available when
in the Wet drive mode.
Your vehicle has a launch control feature
that uses clutch and engine controls to
reduce wheel spin or slip on a hard
acceleration from a standing start.
To operate launch control, your vehicle
must meet the following conditions:
• You must be in any drive mode other
than Wet drive mode.
• You must close the doors, front hood
and rear hatch.
• Your vehicle should be on a level
surface.
• You must disengage the electric park
brake.
• You must be at a complete stop with
the brake pedal applied and the
transmission selector in drive (D).
• Transmission clutch fluid temperature
must be in the normal operating
temperature range.
• No powertrain or brake system warning
indicators are active.
Launch Control remains active until:
• You switch the feature off through the
display screen.
• Your vehicle no longer meets the
conditions required for launch control
to operate. USING LAUNCH CONTROL
To use Launch Control:
•
Activate the launch control feature
through the display screen. See
General Information (page 73).
• When activated, the LC icon appears
in white inside the instrument cluster.
• With your vehicle at a complete stop,
hold the brake pedal firmly and press
the accelerator pedal to wide open
throttle.
• When the engine reaches the required
RPM and your vehicle meets all other
system requirements, the LC icon turns
from white to green and the vehicle is
ready to launch.
• Quickly release the brake pedal and
carefully steer your vehicle when it
accelerates from a stop. The launch
control feature controls wheel spin as
you accelerate.
• After completing the run and stopping,
the LC icon returns to white.
• If any operating conditions are not
within specification, the LC icon turns
grey with a strikethrough.
• You can switch launch control off
through the display screen.
See
General Information (page 73).
171
Ford GT (CGX) Canada/United States of America, enUSA, Edition date: 202010, First-Printing Launch Control