
Protected ComponentFuse RatingFuse or RelayNumber
Auxiliary power point.20A254
Electronic fan 2 (base).25A255
Not used (GT500).—
Not used.—56
Air conditioning clutch relay.—57
Not used.—58
Exhaust valves relay.—59
Powertrain control module.5A360
Not used.—61
Anti-lock brakes run/start switch.5A362
Not used.—63
Electronic power assist steering.5A364
Not used.—65
Blind spot information system.
5A366Rear view camera.Rear window defroster relay coils.Vehicle dynamics module.
Not used.—67
Headlamp leveling switch (base).10A368
Signature lighting (GT500).10A3
Cigar lighter relay.—69Auxiliary power point relay.
Mass air flow sensor (base).5A374
Not used (GT500).—
Rain sensor module (base).5A375
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingFuses

When this occurs, your vehicle stilloperates, however:
•Engine power is limited.
•The air conditioning system turns off.
Continued operation increases the enginetemperature, causing the engine tocompletely shut down. Your steering andbraking effort increases in this situation.
When the engine temperature cools, youcan re-start the engine. Have your vehiclechecked as soon as possible to minimizeengine damage.
When Fail-Safe Mode Is Activated
WARNING: Fail-safe mode is foruse during emergencies only. Operateyour vehicle in fail-safe mode only aslong as necessary to bring your vehicleto rest in a safe location and seekimmediate repairs. When in fail-safemode, your vehicle will have limitedpower, will not be able to maintainhigh-speed operation, and maycompletely shut down without warning,potentially losing engine power, powersteering assist, and power brake assist,which may increase the possibility of acrash resulting in serious injury.
WARNING: Do not remove thecoolant reservoir cap when the engine ison or the cooling system is hot. Wait 10minutes for the cooling system to cooldown. Cover the coolant reservoir capwith a thick cloth to prevent thepossibility of scalding and slowly removethe cap. Failure to follow this instructioncould result in personal injury.
Your vehicle has limited engine powerwhen in the fail-safe mode, drive yourvehicle with caution. Your vehicle does notmaintain high-speed operation and theengine may operate poorly.
Remember that the engine is capable ofautomatically shutting down to preventengine damage. In this situation:
1.Pull off the road as soon as safelypossible and switch the engine off.
2.If you are a member of a roadsideassistance program, we recommendthat you contact your roadsideassistance service provider.
3.If this is not possible, wait for a shortperiod of time for the engine to cool.
4.Check the coolant level. If the coolantlevel is at or below the minimum mark,add prediluted coolant immediately.
5.When the engine temperature cools,you can re-start the engine. Have yourvehicle checked as soon as possible tominimize engine damage.
Note:Driving your vehicle without repairincreases the chance of engine damage.
Engine Coolant TemperatureManagement (If Equipped)
WARNING: To reduce the risk ofcrash and injury, be prepared that thevehicle speed may reduce and thevehicle may not be able to acceleratewith full power until the coolanttemperature reduces.
If you tow a trailer with your vehicle, theengine may temporarily reach a highertemperature during severe operatingconditions, for example ascending a longor steep grade in high ambienttemperatures.
At this time, you may notice the coolanttemperature gauge moves toward the redzone and a message may appear in theinformation display.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenance

You may notice a reduction in vehiclespeed caused by reduced engine power inorder to manage the engine coolanttemperature. Your vehicle may enter thismode if certain high-temperature andhigh-load conditions take place. Theamount of speed reduction depends onvehicle loading, grade and ambienttemperature. If this occurs, there is noneed to stop your vehicle. You cancontinue to drive.
The air conditioning may automaticallyturn on and off during severe operatingconditions to protect the engine fromoverheating. When the coolanttemperature decreases to the normaloperating temperature, the air conditioningturns on.
If the coolant temperature gauge movesfully into the red zone, or if the coolanttemperature warning or service enginesoon messages appear in your informationdisplay, do the following:
1.Stop your vehicle as soon as it is safeto do so. Fully apply the parking brake,shift into park (P) or neutral (N).
2.Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. If thetemperature does not drop afterseveral minutes, follow the remainingsteps.
3.Switch the engine off and wait for it tocool. Check the coolant level.
4.If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5.If the coolant level is normal, restartthe engine and continue.
MANUAL TRANSMISSION
FLUID CHECK - 6-SPEED
MANUAL TRANSMISSION –
3160
Note:Make sure the vehicle is on a levelsurface.
1.Clean the filler plug.
2.Remove the filler plug.
3.Start the engine and allow it to idle fortwo minutes with the clutch engaged.
4.Add fluid through the filler hole.
5.The correct fluid fill level is 0.0–0.1 in(0–3 mm) below the bottom edge ofthe filler hole.
6.Install the filler plug.
7.Tighten the filler plug until you feel astrong resistance.
Only use fluid that meets ourspecifications. See Capacities andSpecifications (page 337).
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenanceE215477

•Reduced fuel economy.
•Reduced brake performance.
Air Conditioning System
WARNING: The air conditioningrefrigerant system contains refrigerantunder high pressure. Only qualifiedpersonnel should service the airconditioning refrigerant system. Openingthe air conditioning refrigerant systemcan cause personal injury.
Capacities
Refrigerant OilRefrigerantVariant
3.38 fl oz (100 ml)19 oz (0.539 kg)All.
Materials
SpecificationName
WSS-M17B21-AR-1234yf Refrigerant(U.S.)R-1234yf Refrigerant / Frigorigène R-1234yf(Canada)YN-33-A(U.S.)HS7Z-19B519-BA(Canada)
WSS-M2C300-A2Motorcraft® R-1234yf Refrigerant PAG Oil(U.S.)Motorcraft® R-1234yf Refrigerant PAG Oil / HuilePAG pour frigorigène R-1234yf Motorcraft®(Canada)YN-35(U.S. & Canada)
Manual Transmission
Capacities
QuantityVariant
2.7 qt (2.6 L)All.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingCapacities and Specifications

Washer Reservoir
Capacities
QuantityVariant
Fill as required.All.
Materials
SpecificationName
WSS-M14P19-AMotorcraft® Premium Windshield Wash Concen-trate with Bitterant(U.S.)Motorcraft® Premium Quality Windshield WasherFluid / Liquide lave-glace de haute qualité Motor-craft®(Canada)ZC-32-B2(U.S.)CXC-37-F/M(Canada)
CAPACITIES AND
SPECIFICATIONS - 5.0L, MACH
1
Use oil and fluid that meets the definedspecification and viscosity grade.
If you do not use oil and fluid that meetsthe defined specification and viscositygrade, it could result in:
•Component damage that your vehiclewarranty does not cover.
•Longer engine cranking periods.
•Increased emission levels.
•Reduced engine performance.
•Reduced fuel economy.
•Reduced brake performance.
Air Conditioning System
WARNING: The air conditioningrefrigerant system contains refrigerantunder high pressure. Only qualifiedpersonnel should service the airconditioning refrigerant system. Openingthe air conditioning refrigerant systemcan cause personal injury.
Capacities
Refrigerant OilRefrigerantVariant
3.38 fl oz (100 ml)19 oz (0.539 kg)All.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingCapacities and Specifications

Materials
SpecificationName
WSS-M14P19-AMotorcraft® Premium Windshield Wash Concen-trate with Bitterant(U.S.)Motorcraft® Premium Quality Windshield WasherFluid / Liquide lave-glace de haute qualité Motor-craft®(Canada)ZC-32-B2(U.S.)CXC-37-F/M(Canada)
CAPACITIES AND
SPECIFICATIONS - 5.0L
Use oil and fluid that meets the definedspecification and viscosity grade.
If you do not use oil and fluid that meetsthe defined specification and viscositygrade, it could result in:
•Component damage not covered bythe vehicle warranty.
•Longer engine cranking periods.
•Increased emission levels.
•Reduced engine performance.
•Reduced fuel economy.
•Reduced brake performance.
Air Conditioning System
WARNING: The air conditioningrefrigerant system contains refrigerantunder high pressure. Only qualifiedpersonnel should service the airconditioning refrigerant system. Openingthe air conditioning refrigerant systemcan cause personal injury.
Capacities
Refrigerant OilRefrigerantVariant
3.38 fl oz (100 ml)19 oz (0.539 kg)All.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingCapacities and Specifications

Supported USB file systems include: FAT,exFAT, and NTFS.
SYNC 3 is also able to organize the mediafrom your USB device by metadata tags.Metadata tags, which are descriptivesoftware identifiers embedded in themedia files, provide information about thefile.
If your indexed media files contain noinformation embedded in these metadatatags, SYNC 3 may classify the emptymetadata tags as unknown.
SYNC 3 is capable of indexing up to50,000 songs per USB device, for up to 10devices.
CLIMATE
Touch the climate button on thetouchscreen to access the climate controlfeatures.
Note:You can switch temperature unitsbetween Fahrenheit and Celsius. SeeSettings (page 431).
Accessing the Climate ControlMenu
Touch the button to accessadditional controls for the frontclimate system.
Directing the Airflow
Touch the button to directairflow to the windshield airvents and de-mister.
Touch the button to directairflow to the instrument panelair vents.
Touch the button to directairflow to the footwell air vents.
You can direct air through any combinationof these air vents.
Setting the Blower Motor Speed
Touch up or down to increase ordecrease the volume of air thatcirculates in your vehicle.
Setting the Temperature
Touch up or down on the left-handtemperature control to set the left-handtemperature.
Note:This control also adjusts theright-hand side temperature when youswitch off dual zone mode.
Touch up or down on the right-handtemperature control to set the right-handtemperature.
Switching Auto Mode On and Off
Touch the button to switch onautomatic operation, then setthe temperature.
The system adjusts the blower motorspeed, air distribution, air conditioningoperation, and outside or recirculated airto reach and maintain the temperature youhave set.
Switching the Air Conditioning Onand Off
A pop-up appears on the screento display the air conditioningoptions.
MAX A/C: Touch the button to activateand maximize cooling. The driver andpassenger temperatures are set to LO,recirculated air flows through theinstrument panel vents, air conditioningautomatically turns on and the fanautomatically adjusts to the highest speed.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingSYNC™ 3 (If Equipped)E265038 E244097 E244098

A/C: Touch to switch the air conditioningon or off. Use A/C with recirculated air toimprove cooling performance andefficiency.
Note:In certain conditions, such asmaximum defrost, the air conditioningcompressor may continue to operate eventhough you switch off the air conditioning.
Switching the Climate Control Onand Off
Touch the button.
Switching the Climate ControlledSeats On and Off
Touch the button to cyclethrough the various climatecontrolled seat settings.
Switching Dual Zone Mode On andOff
Touch the button to switch ontemperature control for theright-hand side of the vehicle.
Switching the Heated ExteriorMirrors On and Off
Touch the button.
Switching the Heated WindshieldOn and Off
Touch the button to clear thewindshield of thin ice and fog.The heated windshield turns offafter a short period of time.
Switching the Heated RearWindow On and Off
Touch the button to clear therear window of thin ice and fog.
Switching the Heated Seats Onand Off
Touch the button to cyclethrough the various heatsettings.
Switching the Heated SteeringWheel On and Off
Touch the button.
Switching Maximum AirConditioning On and Off
Touch the button for maximumcooling.
Recirculated air flows through theinstrument panel air vents, air conditioningturns on and the blower motor adjusts tothe highest speed.
Switching Maximum Defrost Onand Off
Touch the button for maximumdefrosting.
Air flows through the windshield air vents,and the blower motor adjusts to thehighest speed.
You can also use this setting to defog andclear the windshield of a thin covering ofice.
Note:To prevent window fogging, youcannot select recirculated air whenmaximum defrost is on.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingSYNC™ 3 (If Equipped) E265282 E265280 E266189 E184884 E256621