2020 FORD MUSTANG air conditioning

Protected Component
Fuse Rating
Fuse or Relay
Number
Not used (GT350).
—
Not used.
—
51
Horn relay.
—
52
Cigar lighter.
20A 2
53
Auxiliary power point.
20A 2
54
Electronic fan 2 (base, GT350).
25A 2
55
Not used (GT500).
—
Not used.
—
56
Air conditioning clutch relay.
—
57
Not used.
—
58
Exhaust valves relay.
—
59
Powertrain control module.
5A 3
60
Not used.
—
61
Anti-lock brakes run/start switch.
5A 3
62
Not used.
—
63
Electronic power assist steering.
5A 3
64
Not used.
—
65
Blind spot information system.
5A 3
66 Rear view camera.
Rear window defroster relay coils.
Vehicle dynamics module.
Not used.
—
67
Headlamp leveling switch (base).
10A 3
68
Signature lighting (GT350, GT500).
10A 3
Cigar lighter relay.
—
69
Auxiliary power point relay.
225
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing Fuses

Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient
temperature, vehicle load and terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat,
the coolant temperature gauge
moves toward the red zone:
A warning lamp illuminates and
a message may appear in the
information display.
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. If you are a member of a roadside assistance program, we recommend
that you contact your roadside
assistance service provider.
3. If this is not possible, wait for a short period of time 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.
243
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing Maintenance

Engine Coolant Temperature
Management (If Equipped)
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.
If you tow a trailer with your vehicle, the
engine may temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long
or steep grade in high ambient
temperatures.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
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, grade and ambient
temperature. If this occurs, there is no
need to stop your vehicle. You can
continue to drive.
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. Stop your vehicle as soon as it is safe
to do so. Fully apply the parking brake,
shift into park (P) or neutral (N).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. If the
temperature does not drop after
several minutes, 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.
MANUAL TRANSMISSION
FLUID CHECK
1. Clean the filler plug. The filler plug is on the right-hand side of the
transmission. 2. Remove the filler plug.
3. The correct fluid fill level is
0.0–0.1 in
(0– 3 mm) below the bottom edge of
the filler hole.
4. Add fluid through the filler hole.
5. Install the filler plug.
244
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing MaintenanceE174951

CAPACITIES AND
SPECIFICATIONS - 2.3L
ECOBOOST™
Use oil and fluid that meets the defined
specification and viscosity grade.
If you do not use oil and fluid that meets
the defined specification and viscosity
grade, it could result in:
•
Component damage not covered by
the vehicle warranty.
• Longer engine cranking periods.
• Increased emission levels. •
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.
303
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing Capacities and Specifications

Washer Reservoir
Capacities
Quantity
Variant
Fill as required.
All.
Materials Specification
Name
WSS-M14P19-A
Motorcraft® Premium Windshield Wash Concen-
trate with Bitterant (U.S.)
Motorcraft® Premium Quality Windshield Washer
Fluid / Liquide lave-glace de haute qualité Motor-
craft® (Canada)
ZC-32-B2 (U.S.)
CXC-37-A/B/D/F (Canada)
CAPACITIES AND
SPECIFICATIONS - 5.0L
Use oil and fluid that meets the defined
specification and viscosity grade.
If you do not use oil and fluid that meets
the defined specification and viscosity
grade, it could result in:
• Component damage not covered by
the vehicle warranty.
• Longer engine cranking periods.
• Increased emission levels. •
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.
311
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing Capacities and Specifications

Supported USB file systems include: FAT,
exFAT, and NTFS.
SYNC 3 is also able to organize the media
from your USB device by metadata tags.
Metadata tags, which are descriptive
software identifiers embedded in the
media files, provide information about the
file.
If your indexed media files contain no
information embedded in these metadata
tags, SYNC 3 may classify the empty
metadata tags as unknown.
SYNC 3 is capable of indexing up to
50,000 songs per USB device, for up to 10
devices.
CLIMATE
Touch the climate button on the
touchscreen to access your climate control
features.
Note:
You can switch temperature units
between Fahrenheit and Celsius. See
Settings (page 382).
Accessing the Climate Control
Menu Touch the button to access
additional controls for the front
climate system.
Directing the Airflow Touch the button to direct
airflow to the windshield air
vents and de-mister.
Touch the button to direct
airflow to the instrument panel
air vents.
Touch the button to direct
airflow to the footwell air vents. You can direct air through any combination
of these air vents.
Setting the Blower Motor Speed Touch up or down to increase or
decrease the volume of air that
circulates in your vehicle.
Setting the Temperature
Touch up or down on the left-hand
temperature control to set the left-hand
temperature.
Note: This control also adjusts the
right-hand side temperature when you
switch off dual zone mode.
Touch up or down on the right-hand
temperature control to set the right-hand
temperature.
Switching Auto Mode On and Off Touch the button to switch on
automatic operation, then set
the temperature.
The system adjusts the blower motor
speed, air distribution, air conditioning
operation, and outside or recirculated air
to reach and maintain the temperature you
have set.
Switching the Air Conditioning On
and Off A pop-up appears on the screen
to display the air conditioning
options.
MAX A/C:
Touch the button to activate
and maximize cooling. The driver and
passenger temperatures are set to LO,
recirculated air flows through the
instrument panel vents, air conditioning
automatically turns on and the fan
automatically adjusts to the highest speed.
370
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing SYNC™ 3
(If Equipped)E265038

A/C: Touch to switch the air conditioning
on or off. Use A/C with recirculated air to
improve cooling performance and
efficiency.
Note: In certain conditions, such as
maximum defrost, the air conditioning
compressor may continue to operate even
though you switch off the air conditioning.
Switching the Climate Control On
and Off Touch the button.
Switching the Climate Controlled
Seats On and Off Touch the button to cycle
through the various climate
controlled seat settings.
Switching Dual Zone Mode On and
Off Touch the button to switch on
temperature control for the
right-hand side of the vehicle.
Switching the Heated Exterior
Mirrors On and Off Touch the button.
Switching the Heated Windshield
On and Off Touch the button to clear the
windshield of thin ice and fog.
The heated windshield turns off
after a short period of time. Switching the Heated Rear
Window On and Off Touch the button to clear the
rear window of thin ice and fog.
Switching the Heated Seats On
and Off Touch the button to cycle
through the various heat
settings.
Switching the Heated Steering
Wheel On and Off Touch the button.
Switching Maximum Air
Conditioning On and Off Touch the button for maximum
cooling.
Recirculated air flows through the
instrument panel air vents, air conditioning
turns on and the blower motor adjusts to
the highest speed.
Switching Maximum Defrost On
and Off Touch the button for maximum
defrosting.
Air flows through the windshield air vents,
and the blower motor adjusts to the
highest speed.
You can also use this setting to defog and
clear the windshield of a thin covering of
ice.
Note: To prevent window fogging, you
cannot select recirculated air when
maximum defrost is on.
371
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing SYNC™ 3
(If Equipped) E265282 E265280 E266189 E184884

Multi-Point Inspection
In order to keep your vehicle running right,
it is important to have the systems on your
vehicle checked regularly. This can help
identify potential issues and prevent major
problems. We recommend having the
following multi-point inspection performed
at every scheduled maintenance interval
to help make sure your vehicle keeps
running great.Multi-Point inspection
Hazard warning system operation.
Accessory drive belts.
Horn operation.
Battery performance.
Radiator, cooler, heater and air conditioninghoses.
Engine air filter.
Suspension components for leaks ordamage.
Exhaust system.
Steering and linkage.
Exterior lamps operation.
Tires, including spare, for wear and properpressure.2
Fluid levels; fill if necessary. 1
Windshield for cracks, chips or pits.
For oil and fluid leaks.
Washer spray and wiper operation.
Half-shaft dust boots.
1 Brake, coolant recovery reservoir, automatic transmission and window washer.
2 If your vehicle is equipped with a temporary mobility kit, check the tire sealant expiration
Use By date on the canister. Replace as needed.
Be sure to ask your dealership service
advisor or technician about the multi-point
vehicle inspection. It is a comprehensive
way to perform a thorough inspection of
your vehicle. Your checklist gives you
immediate feedback on the overall
condition of your vehicle. NORMAL SCHEDULED
MAINTENANCE
Intelligent Oil-Life Monitor™
Your vehicle has an Intelligent Oil-Life
Monitor that determines when you should
change the engine oil based on how you
use your vehicle. By using several
important factors in its calculations, the
monitor helps reduce the cost of owning
your vehicle and reduces environmental
waste at the same time.
403
Mustang (CZG) Canada/United States of America, Vehicles Built From: 15-07-2019, enUSA, Edition date: 201906, Second-Printing Scheduled Maintenance