
Transmission
Manual Transmission
................................164
Automatic Transmission ..........................
165
Technical Specifications - Mach 1 .........
168
Rear Axle
Limited Slip Differential ............................
170
Brakes
General Information .....................................
171
Hints on Driving With Anti-Lock Brakes ........................................................................\
..
171
Parking Brake .................................................
172
Hill Start Assist .............................................
173
Traction Control
Principle of Operation ................................
174
Using Traction Control ...............................
174
Stability Control
Principle of Operation ................................
175
Using Stability Control ...............................
176
Parking Aids
Principle of Operation ................................
178
Rear Parking Aid ...........................................
179
Rear View Camera ......................................
180
Cruise Control
What Is Cruise Control ..............................
184
Switching Cruise Control On and Off ........................................................................\
.
184
Setting the Cruise Control Speed .........
184
Canceling the Set Speed ..........................
185
Resuming the Set Speed ..........................
185
Cruise Control Indicators ..........................
185
Using Adaptive Cruise Control ...............
185
Driving Aids
Driver Alert ......................................................
191Lane Keeping System
................................
192
Blind Spot Information System .............
196
Cross Traffic Alert ........................................
198
Steering ...........................................................
201
Pre-Collision Assist ....................................
202
Drive Control - Mach 1 ..............................
206
Drive Control ................................................
209
Load Carrying
Load Limit .......................................................
213
Towing
Towing a Trailer - Mach 1 ...........................
218
Towing a Trailer ............................................
218
Recommended Towing Weights ...........
219
Essential Towing Checks .........................
220
Transporting the Vehicle - Mach 1 ........
222
Towing the Vehicle on Four Wheels .....
225
Convertible Top
Opening the Convertible Top .................
226
Closing the Convertible Top ....................
227
Driving Hints
Reduced Engine Performance ...............
229
Economical Driving ....................................
229
Cold Weather Precautions ......................
230
Breaking-In ....................................................
230
Driving Through Water ..............................
230
Floor Mats .......................................................
231
Roadside Emergencies
Roadside Assistance .................................
232
Hazard Flashers ...........................................
233
Fuel Shutoff ..................................................
233
Jump Starting the Vehicle .......................
234
Post-Crash Alert System .........................
236
Transporting the Vehicle ..........................
237
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Table of Contents

Customer Assistance
Getting the Services You Need
..............238
In California (U.S. Only) ...........................
239
The Better Business Bureau (BBB) Auto Line Program (U.S. Only) ....................
240
Utilizing the Mediation/Arbitration Program (Canada Only) .......................
241
Getting Assistance Outside the U.S. and Canada ........................................................
241
Ordering Additional Owner's Literature ........................................................................\
243
Reporting Safety Defects (U.S. Only) ........................................................................\
243
Reporting Safety Defects (Canada Only) ........................................................................\
243
Fuses
Fuse Specification Chart .........................
245
Changing a Fuse .........................................
254
Maintenance
General Information ..................................
256
Opening and Closing the Hood .............
256
Under Hood Overview - 2.3L EcoBoost™ ........................................................................\
258
Under Hood Overview - 5.0L .................
259
Under Hood Overview - 5.0L, Mach 1 .......................................................................
260
Engine Oil Dipstick ......................................
261
Engine Oil Check ..........................................
261
Oil Change Indicator Reset ......................
261
Changing the Engine Air Filter - 5.0L, Mach 1 .........................................................
262
Changing the Engine Air Filter - 2.3L EcoBoost™/5.0L ....................................
263
Engine Coolant Check ..............................
264
Manual Transmission Fluid Check - 6-Speed Manual Transmission – 3160
........................................................................\
268
Manual Transmission Fluid Check - 6-Speed Manual Transmission – MT82
........................................................................\
268 Automatic Transmission Fluid Check
........................................................................\
269
Brake Fluid Check .......................................
269
Clutch Fluid Check - Manual Transmission ............................................
270
Power Steering Fluid Check ....................
270
Changing the 12V Battery ........................
270
Adjusting the Headlamps ........................
272
Washer Fluid Check ...................................
274
Fuel Filter ........................................................
274
Checking the Wiper Blades .....................
274
Changing the Wiper Blades ....................
274
Changing a Bulb ..........................................
275
Track Use
Track Use - Mach 1 ......................................
276
Track Use .......................................................
283
Vehicle Care
General Information ..................................
289
General Information - GT500/Mach 1 ........................................................................\
289
Cleaning Products .....................................
290
Cleaning the Exterior - Mach 1 ................
291
Cleaning the Exterior ..................................
291
Waxing ............................................................
293
Cleaning the Engine - Mach 1 .................
293
Cleaning the Engine ...................................
293
Cleaning the Windows and Wiper Blades ........................................................................\
294
Cleaning the Interior ..................................
294
Cleaning the Instrument Panel and Instrument Cluster Lens ......................
295
Cleaning Leather Seats ............................
295
Repairing Minor Paint Damage .............
296
Cleaning the Wheels .................................
296
Vehicle Storage ...........................................
296
Cleaning the Convertible Top ................
298
Body Styling Kits ........................................
298
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Table of Contents

Wheels and Tires
General Information
..................................299
Tire Sealant and Inflator Kit ...................
299
Tire Care .........................................................
305
Using Summer Tires ..................................
320
Using Winter Tires ......................................
323
Using Snow Chains ....................................
323
Tire Pressure Monitoring System ..........
324
Changing a Road Wheel ..........................
328
Driving at High Speed ................................
333
Technical Specifications ..........................
334
Capacities and Specifications
Engine Specifications - 2.3L EcoBoost™ ........................................................................\
335
Engine Specifications - 5.0L, Mach 1 ........................................................................\
335
Engine Specifications - 5.0L ...................
337
Brake System Specifications - Mach 1 ........................................................................\
337
Suspension Specifications - Mach 1 .....
339
Motorcraft Parts - 2.3L EcoBoost™ .....
340
Motorcraft Parts - 5.0L ..............................
341
Motorcraft Parts - 5.0L, Bullitt/Mach 1 ........................................................................\
342
Vehicle Identification Number ...............
343
Capacities and Specifications - 2.3L EcoBoost™ ...............................................
343
Capacities and Specifications - 5.0L ........................................................................\
.
351
Bulb Specification Chart .........................
359
Connected Vehicle
What Is a Connected Vehicle ................
360
Connected Vehicle Requirements .......
360
Connected Vehicle Limitations .............
360
Connecting the Vehicle to a Mobile Network .....................................................
360
Connecting the Vehicle to a Wi-Fi Network .....................................................
360Connected Vehicle – Troubleshooting -
Vehicles With: Modem ..........................
361
Connected Vehicle – Troubleshooting - Vehicles With: SYNC 3 ..........................
362
Vehicle Wi-Fi Hotspot
Creating a Vehicle Wi-Fi Hotspot .........
364
Changing the Vehicle Wi-Fi Hotspot Name or Password ................................
364
Audio System
General Information ..................................
365
Audio Unit - Vehicles With: 4.2 Inch Information and Entertainment Display
Screen .........................................................
365
Audio Unit - Vehicles With: 8 Inch Information and Entertainment Display
Screen .........................................................
367
Digital Radio .................................................
369
Satellite Radio ...............................................
371
USB Port .........................................................
374
SYNC™
General Information ...................................
375
Using Voice Recognition ..........................
376
Using SYNC™ With Your Phone ...........
378
SYNC™ Applications and Services ......
379
Using SYNC™ With Your Media Player ........................................................................\
382
SYNC™ Troubleshooting ........................
383
SYNC™ 3
General Information ..................................
392
Using Voice Recognition ..........................
394
Entertainment ..............................................
401
Climate .............................................................
411
Phone ...............................................................
413
Navigation ......................................................
415
Apps ................................................................
420
Settings ..........................................................
423
SYNC™ 3 Troubleshooting .....................
425
6
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Table of Contents

Thanks to a popular mix of appearance,
features and power, the 1969-73 Mach 1's
proved to be everyman's muscle car, and
have earned a respected place in Mustang
performance lore. Beyond those classic
years, the Mach 1 carried over for all five
years of the often overlooked 1974-78's
before a hiatus that ended with the
modern and muscular 2003-04's. Mach
1’
s return to the Mustang lineup for 2021
will add a new chapter on modern-day
muscle for this beloved model, and will
cement its rightful place near the very top
of Mustang performance history.
John M. Clor
Enthusiast Communications Manager /
FORD PERFORMANCE
SYMBOLS GLOSSARY
These are some of the symbols you may
see on your vehicle. Air conditioning system
Air conditioning system lubricant
type
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Brake fluid - non petroleum
based Brake system
Brake system
Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
Child seat tether anchor
Cruise control
Do not open when hot
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing IntroductionE162384 E231157 E270480 E139223 E141128 E71340

Fasten seatbelt
Flammable
Front airbag
Front fog lamps
Fuel pump reset
Fuse compartment
Hazard flashers
Heated rear window
Windshield defrosting system
Interior luggage compartment
release
Jack
Keep out of reach of children
Lighting control
Low tire pressure warning
Maintain correct fluid level Note operating instructions
Horn control
Panic alarm
Parking aid
Parking brake
Power steering fluid
Power windows front/rear
Power window lockout
Requires registered technician
Safety alert
See Owner's Manual
See Service Manual
Service engine soon
Passenger airbag activated
Passenger airbag deactivated
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing IntroductionE71880 E231160 E67017 E161353 E270945 E139213 E231159 E65963 E231158 E270849 E270850

Side airbag
Shield the eyes
Stability control
Hill descent control
Trail control
Windshield wiping system
Windshield wash and wipe
DATA RECORDING WARNING: Do not connect
wireless plug-in devices to the data link
connector. Unauthorized third parties
could gain access to vehicle data and
impair the performance of safety related
systems. Only allow repair facilities that
follow our service and repair instructions
to connect their equipment to the data
link connector.
We respect your privacy and are
committed to protecting it. The
information contained in this publication
was correct at the time of going to print,
but as technology rapidly changes, we
recommend that you visit the regional Ford
website for the latest information. Your vehicle has electronic control units
that have data recording functionality and
the ability to permanently or temporarily
store data. This data could include
information on the condition and status of
your vehicle, vehicle maintenance
requirements, events and malfunctions.
The types of data that can be recorded are
described in this section. Some of the data
recorded is stored in event logs or error
logs.
Note:
Error logs are reset following a service
or repair.
Note: We may provide information in
response to requests from law enforcement,
other government authorities and third
parties acting with lawful authority or
through a legal process. Such information
could be used by them in legal proceedings.
Data recorded includes, for example:
• Operating states of system
components, for example, fuel level,
tire pressure and battery charge level.
• Vehicle and component status, for
example, wheel speed, deceleration,
lateral acceleration and seatbelt
status.
• Events or errors in essential systems,
for example, headlamps and brakes.
• System responses to driving situations,
for example, airbag deployment and
stability control.
• Environmental conditions, for example,
temperature.
Some of this data, when used in
combination with other information, for
example, an accident report, damage to a
vehicle or eyewitness statements, could
be associated with a specific person.
15
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Introduction E167012 E138639 E163957 E272858 E270969

Service Data
Service data recorders in your vehicle are
capable of collecting and storing
diagnostic information about your vehicle.
This potentially includes information about
the performance or status of various
systems and modules in the vehicle, such
as engine, throttle, steering or brake
systems. In order to properly diagnose and
service your vehicle, Ford Motor Company
(Ford of Canada in Canada), and service
and repair facilities may access or share
among them vehicle diagnostic
information received through a direct
connection to your vehicle when
diagnosing or servicing your vehicle.
Additionally, Ford Motor Company (Ford
of Canada, in Canada) may, where
permitted by law, use vehicle diagnostic
information for vehicle improvement or
with other information we may have about
you, for example, your contact information,
to offer you products or services that may
interest you. Data may be provided to our
service providers such as part suppliers
that may help diagnose malfunctions, and
who are similarly obligated to protect data.
We retain this data only as long as
necessary to perform these functions or to
comply with law. We may provide
information where required in response to
official requests to law enforcement or
other government authorities or third
parties acting with lawful authority or court
order, and such information may be used
in legal proceedings. For U.S. only (if
equipped), if you choose to use connected
apps and services, you consent that certain
diagnostic information may also be
accessed electronically by Ford Motor
Company and Ford authorized service
facilities, and that the diagnostic
information may be used to provide
services to you, personalizing your
experience, troubleshoot, and to improve
products and services and offer you
products and services that may interest
you, where permitted by law. For Canada
only, for more information, please review
the Ford of Canada privacy policy at
www.ford.ca, including our U.S. data
storage and use of service providers in
other jurisdictions who may be subject to
legal requirements in Canada, the United
States and other countries applicable to
them, for example, lawful requirements to
disclose personal information to
governmental authorities in those
countries.
Event Data
This vehicle is equipped with an event data
recorder. The main purpose of an event
data recorder is to record, in certain crash
or near crash-like situations, such as an
airbag deployment or hitting a road
obstacle; this data assist in understanding
how a vehicle
’s systems performed. The
event data recorder is designed to record
data related to vehicle dynamics and
safety systems for a short period of time,
typically 30 seconds or less.
The event data recorder in this vehicle is
designed to record such data as:
• How various systems in your vehicle
were operating.
• Whether or not the driver and
passenger seatbelts were
buckled/fastened.
• How far (if at all) the driver was
depressing the accelerator and/or the
brake pedal.
• How fast the vehicle was traveling.
• Where the driver was positioning the
steering wheel.
This data can help provide a better
understanding of the circumstances in
which crashes and injuries occur.
16
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Introduction

Pregnant women should always wear their
seatbelt. Position the lap belt portion of a
combination lap and shoulder belt low
across the hips below the belly and worn
as tight as comfort allows. Position the
shoulder belt to cross the middle of the
shoulder and the center of the chest.
Seatbelt Locking Modes
WARNING: If your vehicle is
involved in a crash, have the seatbelts
and associated components inspected
as soon as possible. Failure to follow this
instruction could result in personal injury
or death.
All safety restraints in the vehicle are
combination lap and shoulder belts and
have vehicle sensitive locking mode. In
addition, the front outboard passenger and
rear seat seatbelts have the automatic
locking mode.
Vehicle Sensitive Mode
This is the normal retractor mode, which
allows free shoulder belt length
adjustment to your movements and
locking in response to vehicle movement.
For example, if the driver brakes suddenly
or turns a corner sharply, or the vehicle
receives an impact of about
5 mph
(8 km/h) or more, the combination
seatbelts lock to help reduce forward
movement of the driver and passengers.
In addition, the retractor is designed to lock
if you pull the webbing out too quickly. If
the seatbelt retractor locks, slowly lower
the height adjuster to allow the seatbelt
to retract. If the retractor does not unlock,
pull the seatbelt out slowly then feed a small length of webbing back toward the
stowed position. For rear seatbelts, recline
the rear seat backrest or push the seat
backrest cushion away from the seatbelt.
Feed a small length of webbing back
toward the stowed position.
Automatic Locking Mode
In this mode, the shoulder belt
automatically pre-locks. The belt still
retracts to remove any slack in the
shoulder belt. The automatic locking mode
is not available on the driver seatbelt.
When to Use the Automatic Locking
Mode
Use this mode any time a child safety seat,
except a booster, is installed in passenger
front or rear seating positions. Properly
restrain children 12 years old and under in
a rear seating position whenever possible.
See
Child Safety (page 25).
How to Disengage the Automatic
Locking Mode
Unbuckle the combination lap and
shoulder belt and allow it to retract
completely to disengage the automatic
locking mode and activate the vehicle
sensitive (emergency) locking mode.
SEATBELT WARNING LAMP
AND INDICATOR CHIME This lamp illuminates and an
indicator chime will sound if the
driver seatbelt has not been
fastened when the vehicle's ignition is
turned on.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing SeatbeltsE71880