2021 FORD MUSTANG brake light

GENERAL INFORMATION
Have your vehicle serviced regularly to help
maintain its roadworthiness and resale
value. There is a large network of
authorized dealers that are there 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 wide range of
highly specialized tools developed
specifically for servicing your vehicle.
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 the transmission to park (P), for automatic
transmission, or neutral (N), for manual
transmission.
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 the transmission to park (P), for automatic
transmission, or neutral (N), for manual
transmission.
2. Block the wheels.
OPENING AND CLOSING THE
HOOD
Opening the Hood 1.
Inside the vehicle, pull the hood release
handle located under the left-hand
side of the instrument panel.
2. Slightly lift the hood.
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Note:
If the brake fluid level is between the
MIN and the MAX marks on the reservoir, it
is acceptable.
Note: If the brake fluid level is below the
MIN
mark or above the MAX mark, have
your vehicle checked as soon as possible.
Note: To avoid fluid contamination, the
reservoir cap must remain in place and fully
tight, unless you are adding fluid.
Only use fluid that meets our
specifications. See
Capacities and
Specifications (page 335).
Brake Fluid Service Interval
Brake fluid absorbs water over time which
degrades the effectiveness of the brake
fluid. Change the brake fluid at the
specified intervals to prevent degraded
braking performance.
For detailed interval information, see
Scheduled Maintenance in your Owner's
Manual or your local maintenance guide.
CLUTCH FLUID CHECK -
MANUAL TRANSMISSION
The clutch and brake systems share the
same fluid reservoir. See
Brake Fluid
Check (page 269).
POWER STEERING FLUID
CHECK
Your vehicle is equipped with an electric
power steering (EPS) system. There is no
fluid reservoir to check or fill. CHANGING THE 12V BATTERY WARNING:
Batteries normally
produce explosive gases which can
cause personal injury. Therefore, do not
allow flames, sparks or lighted
substances to come near the battery.
When working near the battery, always
shield your face and protect your eyes.
Always provide correct ventilation. WARNING:
When lifting a
plastic-cased battery, excessive pressure
on the end walls could cause acid to flow
through the vent caps, resulting in
personal injury and damage to the
vehicle or battery. Lift the battery with a
battery carrier or with your hands on
opposite corners. WARNING:
Keep batteries out of
reach of children. Batteries contain
sulfuric acid. Avoid contact with skin,
eyes or clothing. Shield your eyes when
working near the battery to protect
against possible splashing of acid
solution. In case of acid contact with skin
or eyes, flush immediately with water for
a minimum of 15 minutes and get prompt
medical attention. If acid is swallowed,
call a physician immediately. 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
.
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Note:
Prior to relearning the battery state
of charge, the battery management system
may temporarily disable some electrical
systems.
Electrical Accessory Installation
To make sure the battery management
system works correctly, do not connect an
electrical device ground connection
directly to the battery negative post. This
can cause inaccurate measurements of
the battery condition and potential
incorrect system operation.
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.
Remove and Reinstall the Battery
To disconnect or remove the battery, do
the following:
1. Apply the parking brake and switch the
ignition off.
2. Switch all electrical equipment off, for
example lights and radio.
3. Wait a minimum of two minutes before
disconnecting the battery.
Note: The engine management system has
a power hold function and remains powered
for a period of time after you switch the
ignition off. This is to allow diagnostic and
adaptive tables to be stored. Disconnecting
the battery without waiting can cause
damage not covered by the vehicle
Warranty.
4. Disconnect the negative battery cable terminal.
5. Disconnect the positive battery cable terminal.
6. Remove the battery securing clamp.
7. Remove the battery. 8. To install, reverse the removal
procedure.
Note: Before reconnecting the battery,
make sure the ignition remains switched off.
Note: Make sure the battery cable terminals
are fully tightened.
If you disconnect or replace the vehicle
battery, you must reset the following
features:
• Window bounce-back. See Power
Windows (page 86).
• Clock Settings.
• Pre-set radio stations.
Battery Disposal Make sure that you dispose of
old batteries in an
environmentally friendly way.
Seek advice from your local authority
about recycling old batteries.
ADJUSTING THE HEADLAMPS
Vertical Aim Adjustment
The headlamps on your vehicle are
properly aimed at the assembly plant. If
your vehicle has been in an accident, have
the alignment of your headlamps checked
by an authorized dealer.
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Poor wiper quality can be improved by
cleaning the wiper blades and the
windshield. See Cleaning the Windows
and Wiper Blades (page 294).
CHANGING A BULB
Replacing Reverse Lamp Bulbs
1. Make sure the lighting control is in the off position.
2. Locate the reverse lamp bulb under the
rear bumper of your vehicle. To access
the bulb, reach behind the bumper.
3. Disconnect the electrical sensor from the bulb by pulling it straight off. 4. Rotate the bulb counterclockwise and
remove it from the reverse lamp
assembly.
LED Lamps
LED lamps are not serviceable items.
Contact an authorized dealer if they fail.
The following are LED lamps:
• Headlamps.
• Rear lamp.
• Brake lamp.
• Front fog lamp.
• Front sidemarker
• Daytime running lamp. •
Central high mounted brake lamp.
• Front direction indicator.
• Rear direction indicator lamp.
• License plate lamp.
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time before line lock is released
automatically. If you exceed the time limit,
or another vehicle condition requires line
lock to release, the system safely
disengages and normal vehicle function
resumes.
Note:
If you apply the brake pedal while
line lock is engaged, line lock automatically
cancels and normal brake function resumes.
Performance Shift Indicator
The performance shift indicator displays
a row of colored lights that represent
engine RPM.
The performance shift indicator menu
allows you to:
• Choose whether the indicator is shown
on the windshield or information
display.
• Set a shift point within the allowable
RPM range in increments of 100.
• Enable or disable the associated shift
tone, based on the set shift point.
• Set the between off, change with drive
mode, tach, track and drag.
• Set the light intensity. The intensity
adjusts between day time and night
time. Start Option
Allows you to select the type of countdown
the information display shows before
starting an event.
Status Screen
Provides the status of your chosen
performance-related settings.
View/Clear Results
Allows you to view and clear the last and
saved results of the Acceleration Timer,
Brake Performance, and All Time Best
results.
Road Course Alignment
Recommendations
Note:
After your track day is complete,
return your car to the street alignment and
tire pressures.
Note: Using these wheel alignment settings
may cause excessive tire wear. Only use
these settings for racing or competitive
driving. Excessive tire wear is not covered
under the vehicle warranty.
If you plan to participate in road course
track days, we recommend the following
chassis settings for optimal tire wear and
handling performance.
All settings are at curb loading condition
full of fuel.
Mach 1 Street
Track
Front
-1.03°
-1.5°
Camber
0°
0°
Toe - Total
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Track Use

Initiating Line Lock
The initiation stage verifies that the vehicle
is ready for line lock function, and confirms
driver intent. Follow the prompts in the
information display to initiate line lock.
The following conditions must be met to
initialize line lock:
•
The vehicle is on a level surface.
• The engine is running.
• The vehicle is traveling less than
25 mph (40 km/h).
• Selectable drive mode is not in wet
mode (if equipped).
• There are no electronic stability control
faults.
If you want to cancel line lock once it is
initialized, press the left information
display control. Once initiated, line lock is
prepared for activation and remains
initiated up to 25 mph (40 km/h). If vehicle
speed exceeds 25 mph (40 km/h), line lock
automatically cancels.
Engaging Line Lock
Follow the prompts in the information
display to engage line lock after it is
initialized. To engage, firmly apply the
brakes. Then press the OK button. Once
engaged, release the brake pedal. The
front brakes remain applied and the rear
brakes release. At this point, the
engagement timer is initiated and shown
on the driver information display.
The following conditions must be met to
engage line lock:
• The vehicle is on a level surface.
• The engine is running.
• The vehicle is stopped.
• The parking brake is not applied.
• The driver door is closed.
• The transmission is in a forward gear. •
Selectable drive mode is not in wet
mode (if equipped).
• There are no electronic stability control
faults.
• The steering wheel must be in the
straight ahead position.
Releasing Line Lock
While line lock is engaged, you can exit
(release) the feature using the OK button.
When you press the OK button, line lock
releases immediately and normal vehicle
function resumes. When line lock engages,
a countdown timer shows the remaining
time before line lock is released
automatically. If you exceed the time limit,
or another vehicle condition requires line
lock to release, the system safely
disengages and normal vehicle function
resumes.
Note: If you apply the brake pedal while
line lock is engaged, line lock automatically
cancels and normal brake function resumes.
Performance Shift Indicator
The performance shift indicator displays
a row of colored lights that represent
engine RPM.
The performance shift indicator menu
allows you to:
• Choose whether the indicator is shown
on the windshield or information
display.
• Set a shift point within the allowable
RPM range in increments of 100.
• Enable or disable the associated shift
tone, based on the set shift point.
• Set the between off, change with drive
mode, tach, track and drag.
• Set the light intensity. The intensity
adjusts between day time and night
time.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Track Use

Start Option
Allows you to select the type of countdown
the information display shows before
starting an event.
Status Screen
Provides the status of your chosen
performance-related settings.
View/Clear Results
Allows you to view and clear the last and
saved results of the Acceleration Timer,
Brake Performance, and All Time Best
results.
Track Use Maintenance Intervals
Follow these maintenance intervals for
when you use your vehicle on a track or in
a high speed event. Vehicle Use and Example
Interval
Change the engine oil and filter
One track weekend or approximately 4
hours of track use
Change the rear axle fluid
Every 500 mi (800 km) 1
1 Change the fluid every 500 mi (800 km) or when a message appears in the information
display stating that the axle fluid is over temperature.
Timing Chain
If you use your vehicle extensively at a race
track or at high rpm, it is possible to exceed
the service life of the engine timing chain.
A wrench indicator light illuminates when
it is time for you to replace your chain.
Have your vehicle checked as soon as
possible.
Adjustable Camber Front Strut
Top Mounts
(If Equipped)
Your vehicle has adjustable strut mounts
which you can use to adjust the camber of
your vehicle before and after a track event
to the specifications listed in the Road
Course Alignment Recommendations table
previously shown.
Note: After your track day is complete,
return your car to the street alignment and
tire pressures. Aerodynamics
(If Equipped)
Adjustable Rear Wing
The rear wing generates aerodynamic
down-force at speeds greater than 50 mph
(80 km/h)
.
Regularly inspect the rear wing panel and
attachment points for damage or
looseness.
You can adjust the wing using the hole
pattern at the top of the stanchion.
Moving the wing up increases rear down
force and overall understeer. Moving the
wing down decreases the rear down force
and overall understeer.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Track Use

You should:
•
Remove dust and loose dirt with a
vacuum cleaner.
• Clean and treat spills and stains as
soon as possible.
Do not use the following products as these
may damage the leather:
• Oil and petroleum or silicone-based
leather conditioners.
• Household cleaners.
• Alcohol solutions.
• Solvents or cleaners intended
specifically for rubber, vinyl and
plastics.
REPAIRING MINOR PAINT
DAMAGE
Authorized dealers have touch-up paint to
match your vehicle ’s color. Your vehicle
color code is printed on a sticker on the
front, left-hand side door jamb. Take your
color code to your authorized dealer to
make sure you get the correct color.
Before repairing minor paint damage, use
a cleaner to remove particles such as bird
droppings, tree sap, insect deposits, tar
spots, road salt and industrial fallout.
Read the instructions before using cleaning
products.
CLEANING THE WHEELS
1. Regularly clean them with a wheel cleaner. We recommend that you use
Ford approved wheel cleaner if
available.
2. Remove dirt and brake dust with a sponge. 3.
Remove tar and grease with a bug and
tar remover. We recommend that you
use Ford approved bug and tar remover
if available.
4. Thoroughly rinse the wheels with water
after cleaning.
If you intend on parking your vehicle for an
extended period after cleaning the wheels
with a wheel cleaner, drive your vehicle for
a few minutes before doing so. This
reduces the risk of corrosion of the brake
discs, brake pads and linings.
Do not clean the wheels when they are hot.
Note: Some car washes could damage
wheel rims and covers.
Note: Using non-recommended cleaners,
harsh cleaning products, chrome wheel
cleaners or abrasive materials could
damage wheel rims and covers.
VEHICLE STORAGE
If you plan on storing your vehicle for 30
days or more, read the following
maintenance recommendations to make
sure your vehicle stays in good operating
condition.
We engineer and test all motor vehicles
and their components for reliable, regular
driving. Under various conditions,
long-term storage may lead to degraded
engine performance or failure unless you
use specific precautions to preserve engine
components.
General
• Store all vehicles in a dry, ventilated
place.
• Protect from sunlight, if possible.
• If vehicles are stored outside, they
require regular maintenance to protect
against rust and damage.
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