2021 FORD MUSTANG fuel cap

•
Reduced engine performance.
• Reduced fuel economy.
• Reduced brake performance. Air Conditioning System WARNING: The air conditioning
refrigerant system contains refrigerant
under high pressure. Only qualified
personnel should service the air
conditioning refrigerant system. Opening
the air conditioning refrigerant system
can cause personal injury.
Capacities Refrigerant Oil
Refrigerant
Variant
3.38 fl oz (100 ml)
19 oz (0.539 kg)
All.
Materials Specification
Name
WSS-M17B21-A
R-1234yf Refrigerant(U.S.)
R-1234yf Refrigerant / Frigorigène R-1234yf(Canada)
YN-33-A(U.S.)
HS7Z-19B519-BA(Canada)
WSS-M2C300-A2
Motorcraft® R-1234yf Refrigerant PAG Oil(U.S.)
Motorcraft® R-1234yf Refrigerant PAG Oil / Huile
PAG pour frigorigène R-1234yf Motorcraft®(Canada)
YN-35(U.S. & Canada)
Automatic Transmission
Note: Automatic transmissions that require
MERCON® ULV transmission fluid should
only use MERCON® ULV transmission fluid.
The use of any other fluid could cause
transmission damage.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and Specifications

Engine Oil An oil that displays this symbol conforms
to current engine, emission system and
fuel economy performance standards of
ILSAC.
We recommend Motorcraft® motor oil for
your vehicle. If Motorcraft® oil is not
available, use motor oils of the
recommended viscosity grade that meet
API SP requirements and display the API
Certification Mark for gasoline engines.
Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage not
covered by your vehicle warranty.
Capacities Including the Oil Filter
Variant
10.0 qt (9.5 L)
All.
Materials Specification
Name
WSS-M2C961-A1
Motorcraft® SAE 5W-30 Synthetic Blend Motor
Oil(U.S.)
Motorcraft® SAE 5W-30 Super Premium Motor Oil
/ Huile moteur de très haute qualité SAE 5W-30
Motorcraft®(Canada)
XO-5W30-Q1SP(U.S.)
CXO-5W30-LSP6(Canada)
Alternative Engine Oil for
Extremely Cold Climates
To improve engine cold start performance,
we recommend that you use the following
alternative engine oil in extremely cold
climates, where the ambient temperature
reaches -22.0°F (-30°C) or below.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE142732

Materials
Specification
Name
WSS-M2C963-A1
Engine Oil - SAE 0W-30 - Synthetic Blend Fuel Tank
Capacities
Quantity
Variant
16.0 gal (60.55 L)
All.
Grease
Materials Specification
Name
ESB-M1C93-B
Motorcraft® Multi-Purpose Grease Spray(U.S.)
Motorcraft® Multi-Purpose Grease Spray / Graisse
tout usage en aérosol Motorcraft®(Canada)
XL-5-A(U.S. & Canada)
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Capacities and SpecificationsE240523

If a crash deploys an airbag, excluding knee
airbags and rear inflatable seatbelts, or
activates the fuel pump shut-off, your
vehicle may be able to contact emergency
services by dialing 911 through a paired and
connected Bluetooth®-enabled phone.
See
Supplementary Restraints System
(page 48). Important information about
airbag deployment is in this chapter.
See
Roadside Emergencies (page 232).
Important information about the fuel pump
shut-off is in this chapter.
Setting 911 Assist On or Off
Press the Settings button then select: Action and Description
Menu
Item
Select the desired option, on
or off.
911 Assist
To make sure that 911 Assist works
properly:
• SYNC must be powered and working
properly at the time of the incident and
throughout feature activation and use.
• The 911 Assist feature must be set on
before the incident.
• You must pair and connect a
Bluetooth®
enabled and compatible
cell phone to SYNC.
• A connected
Bluetooth® enabled
phone must have the ability to make
and maintain an outgoing call at the
time of the incident.
• A connected
Bluetooth® enabled
phone must have adequate network
coverage, battery power and signal
strength.
• The vehicle must have battery power
and be located in the U.S., Canada or
in a territory in which 911 is the
emergency number. In the Event of a Crash
Not all crashes deploy an airbag or activate
the fuel pump shut-off (the triggers for 911
Assist). If a connected cell phone sustains
damage or loses its connection to SYNC
during a crash, SYNC searches for and tries
to connect to a previously paired cell
phone; SYNC then attempts to call the
emergency services.
Before making the call:
•
SYNC provides a short window of time
(about 10 seconds) to cancel the call.
If you fail to cancel the call, SYNC
attempts to dial 911.
• SYNC says the following, or a similar
message: "SYNC will attempt to call
911, to cancel the call, press Cancel on
your screen or press and hold the
phone button on your steering wheel".
If you do not cancel the call, and SYNC
makes a successful call, a pre-recorded
message plays for the 911 operator, and
then the occupant(s) in your vehicle are
able to talk with the operator. Be prepared
to provide your name, phone number and
location immediately, because not all 911
systems are capable of receiving this
information electronically.
911 Assist May Not Work If
• Your cellular phone or 911 Assist
hardware sustains damage in a crash.
• The vehicle's battery or the SYNC
system has no power.
• The phone(s) thrown from your vehicle
are the ones paired and connected to
the system.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing SYNC™
(If Equipped)

911 Assist Privacy Notice
When you switch on 911 Assist, it may
disclose to emergency services that your
vehicle has been in a crash involving the
deployment of an airbag or activation of
the fuel pump shut-off. Certain versions or
updates to 911 Assist may also be capable
of electronically or verbally disclosing to
911 operators your vehicle location or other
details about your vehicle or crash to assist
911 operators to provide the most
appropriate emergency services. If you do
not want to disclose this information, do
not switch the feature on.
SYNC Mobile Apps
The system enables voice and steering
wheel control of SYNC AppLink enabled
smartphone apps. When an app is running
through AppLink, you can control main
features of the app through voice
commands and steering wheel controls.
Note:
You must pair and connect your
smartphone to SYNC to access AppLink.
Note: Android users need to connect the
phone to SYNC using Bluetooth®. Note:
For information on available apps,
supported smartphone devices and
troubleshooting tips please visit the Ford
website.
Note: Availability of SYNC AppLink enabled
Apps will vary by region.
Note: Make sure you have an active account
for the app that you have downloaded.
Some apps work automatically with no
setup. Other apps want you to configure
your personal settings and personalize your
experience by creating stations or favorites.
We recommend you do this at home or
outside of your vehicle.
To Access Using the SYNC Menu
Press the Mobile Apps button to access
the menu on-screen. Then select: Action and Description
Menu
Item
Scroll through the list of
available applications and
select a particular app.
Find
Mobile
Apps
Note: If you cannot find a compatible SYNC
AppLink app, make sure the required app is
running on the mobile device.
To Access Using Voice Commands
Press the voice button, then when prompted say: Action and Description
Voice Command
Say the name of the application after the tone.
The app should start. When an app is running through SYNC, you can press the voice button and speak commands specific to the app, for example "Play Playlist Road Trip".
Mobile Applications
SYNC lists all of the currently available mobile apps.
List Applications
Searches your connected mobile device for SYNC-compatible mobile apps.
Find Applications
Use this command to discover the available voice commands.
Help
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing SYNC™
(If Equipped)

App Permissions
App permissions are organized by groups.
You can grant these group permissions
individually. You can change a permission
group status any time when not driving, by
using the settings menu.
When you launch an app using SYNC, the
system may ask you to grant certain
permissions, for example:
•
To allow your vehicle to provide vehicle
information to the app such as, but not
limited to: Fuel level, fuel economy, fuel
consumption, engine speed, rain
sensor, odometer, VIN, external
temperature, gear position, tire
pressure, and head lamp status.
• To allow your vehicle to provide driving
characteristic information such as, but
not limited to: MyKey, seatbelt status,
engine revolutions per minute, gear
position, braking events, steering wheel
angle, and accelerator pedal position.
• To allow your vehicle to provide
location information, including: GPS
and speed.
• To allow the app to send push
notifications using the vehicle display
and voice capabilities while running in
a background state. Push notifications
may be particularly useful for news or
location based apps.
Note: You only need to grant permissions
the first time you use an app with SYNC.
Note: Ford is not responsible or liable for
any damages or loss of privacy relating to
usage of an app, or dissemination of any
vehicle data that you approve Ford to
provide to an app. Enabling SYNC Mobile Apps
In order to enable mobile apps, SYNC
requires user consent to send and receive
app authorization information and updates
using the data plan associated with the
connected device.
Data is sent to Ford in the United States
through the connected device. The
information is encrypted and includes, for
example, the vehicle identification number
of your vehicle, the SYNC module serial
number, odometer, enabled apps, usage
statistics and debugging information.
Updates may take place.
Note:
You must enable mobile apps for
each connected device the first time you
select a mobile app using the system.
Note: Standard data rates apply. Ford is
not responsible for any additional charges
you may receive from your service provider,
when your vehicle sends or receives data
through the connected device. This includes
any additional charges incurred due to
driving in areas when roaming out of a home
network.
USING SYNC™ WITH YOUR
MEDIA PLAYER
SYNC supports digital media sources
including: iPod, Bluetooth® devices, and
most USB drives. SYNC also supports
audio formats, such as MP3, WMA, WAV
and ACC.
Media Sources
The
AUX or MEDIA button allows you to
view and select available media sources.
Press the
AUX or MEDIA button to view
your sources. Use the directional arrows
and OK button to select your source. You
can also use the steering wheel audio
controls.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing SYNC™
(If Equipped)

Switching Maximum Air Conditioning On
and Off............................................................... 129
Switching Maximum Defrost On and Off........................................................................\
129
Switching Recirculated Air On and Off....................................................................... 130
Switching the Air Conditioning On and Off........................................................................\
129
Switching the Climate Control On and Off........................................................................\
129
Automatic High Beam Control.................84
Automatic High Beam Control Indicators.......................................................84
Automatic Transmission...........................165
Automatic Transmission Adaptive
Learning............................................................ 168
Brake-Shift Interlock.......................................... 167
If Your Vehicle Gets Stuck in Mud or Snow.................................................................. 168
SelectShift Automatic ™
Transmission................................................... 166
Understanding the Positions of Your Automatic Transmission............................ 166
Automatic Transmission Fluid Check............................................................269
Autowipers........................................................78
Auxiliary Power Points................................145 12 Volt DC Power Point..................................... 145
Locations............................................................... 145
B
Battery See: Changing the 12V Battery..................... 270
Blind Spot Information System..............196 ........................................................................\
........... 197
Switching the System On and Off...............198
System Errors....................................................... 198
Using the Blind Spot Information System............................................................... 197
BLIS See: Blind Spot Information System..........196
Body Styling Kits.........................................298
Bonnet Lock See: Opening and Closing the Hood..........256
Booster Seats
..................................................35
Types of Booster Seats...................................... 36Brake Fluid Check........................................269
Brake Fluid Service Interval............................ 270
Brakes.................................................................171 General Information............................................ 171
Brake System Specifications - Mach 1........................................................................\
337
Breaking-In.....................................................230 Ground Clearance............................................. 230
Bulb Specification Chart..........................359
C
Canceling the Set Speed...........................185
Capacities and Specifications - 2.3L EcoBoost™.................................................343
Air Conditioning System................................. 344
Alternative Engine Oil for Extremely Cold Climates............................................................ 347
Automatic Transmission................................ 344
Engine Coolant................................................... 345
Engine Oil 2.3L EcoBoost Base.................... 346
Engine Oil 2.3L EcoBoost High Output.............................................................. 348
Fuel Tank.............................................................. 349
Grease.................................................................... 349
Hydraulic Brake System.................................. 350
Locks...................................................................... 350
Manual Transmission....................................... 345
Rear Axle............................................................... 350
Washer Reservoir................................................ 351
Capacities and Specifications - 5.0L.................................................................351
Air Conditioning System.................................. 352
Alternative Engine Oil for Extremely Cold Climates........................................................... 355
Automatic Transmission................................. 352
Engine Coolant................................................... 354
Engine Oil.............................................................. 355
Fuel Tank.............................................................. 356
Grease.................................................................... 356
Hydraulic Brake System................................... 357
Locks....................................................................... 357
Manual Transmission - 3160......................... 354
Manual Transmission - MT82....................... 353
Rear Axle............................................................... 357
Washer Reservoir............................................... 358
Capacities and Specifications................335
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F
Fastening the Seatbelts...............................41
Seatbelt Locking Modes.................................... 43
Using Seatbelts During Pregnancy................42
Flat Tire See: Changing a Road Wheel....................... 328
Flat Tire Inflation See: Tire Sealant and Inflator Kit................299
Floor Mats........................................................231
Fog Lamps - Front See: Front Fog Lamps........................................ 82
Ford Credit.........................................................19 US Only..................................................................... 19
Ford Protect
...................................................439
Ford Protect Extended Service Plan
(CANADA ONLY).......................................... 440
Ford Protect Extended Service Plans (U.S. Only).................................................................. 439
Front Fog Lamps
............................................82
Front Fog Lamp Indicator................................. 83
Switching the Front Fog Lamps On or Off........................................................................\
. 82
Front Passenger Sensing System............50
Fuel and Refueling.......................................152
Fuel Consumption
.......................................158
Advertised Capacity.......................................... 158
Calculating Fuel Economy.............................. 159
Filling the Fuel Tank........................................... 159
Fuel Filler Funnel Location........................154
Fuel Filter.........................................................274
Fuel Quality
.....................................................153
Choosing the Right Fuel................................... 153
Fuel Quality - Mach 1...................................152 Choosing the Right Fuel................................... 152
Fuel Shutoff
...................................................233
Fuses................................................................245
Fuse Specification Chart..........................245
Passenger Compartment Fuse Panel.........251
Power Distribution Box.................................... 245
G
Garage Door Opener....................................141
Garage Door Opener Limitations
............141
Garage Door Opener Precautions...........141 Garage Door Opener Radio
Frequencies.................................................144
FCC and RSS-210 Industry Canada Compliance..................................................... 144
Gauges - Mach 1.............................................90 Oil Pressure Gauge.............................................. 90
Vacuum Gauge..................................................... 90
Gauges - Vehicles With: 12.3 Inch Instrument Cluster Display
Screen.............................................................90
Engine Coolant Temperature Gauge.............91
Fuel Gauge............................................................... 91
Gauge Package..................................................... 92
Information Bar...................................................... 91
Information Display.............................................. 91
Gauges - Vehicles With: 4.2 Inch Instrument Cluster Display
Screen..............................................................92
Engine Coolant Temperature Gauge............93
Fuel Gauge.............................................................. 93
Gauge Package..................................................... 94
Information Bar..................................................... 93
Information Display............................................. 93
Gearbox See: Transmission.............................................. 164
General Information on Radio Frequencies...................................................58
Intelligent Access................................................. 58
General Maintenance Information
........441
Multi-Point Inspection..................................... 444
Owner Checks and Services.......................... 443
Protecting Your Investment............................ 441
Why Maintain Your Vehicle?.......................... 441
Why Maintain Your Vehicle at Your Dealership?...................................................... 441
Getting Assistance Outside the U.S. and Canada..........................................................241
Getting the Services You Need...............238 Away From Home.............................................. 238
Glasses Holder
..............................................146
Global Opening..............................................86 Opening the Windows........................................ 87
H
Handbrake See: Parking Brake.............................................. 172
Hazard Flashers
............................................233
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Index