2023 FORD MUSTANG check engine

Transmission
Manual Transmission.................................163
Automatic Transmission..........................164
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......................................................192
Lane Keeping System................................193
Blind Spot Information System..............197
Cross Traffic Alert........................................199
Steering..........................................................202
Pre-Collision Assist....................................203
Drive Control - Mach 1...............................207
Drive Control.................................................210
Load Carrying
Load Limit.......................................................214
Towing
Towing a Trailer - Mach 1...........................219
Towing a Trailer............................................219
Recommended Towing Weights..........220
Essential Towing Checks...........................221
Transporting the Vehicle - Mach 1........223
Towing the Vehicle on Four Wheels......227
Convertible Top
Opening the Convertible Top.................228
Closing the Convertible Top...................229
Driving Hints
Reduced Engine Performance...............230
Cold Weather Precautions......................230
Breaking-In....................................................230
Driving Economically.................................230
Driving Through Shallow Water.............231
Floor Mats.......................................................231
Roadside Emergencies
Roadside Assistance.................................233
Hazard Flashers...........................................234
Fuel Shutoff..................................................234
Jump Starting the Vehicle.......................235
Post-Crash Alert System..........................237
Transporting the Vehicle..........................238
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingTable of Contents

Customer Assistance
Getting the Services You Need..............239
In California (U.S. Only)...........................240
The Better Business Bureau (BBB) AutoLine Program (U.S. Only)......................241
Utilizing the Mediation/ArbitrationProgram (Canada Only)......................242
Getting Assistance Outside the U.S. andCanada.......................................................242
Ordering Additional Owner's Literature........................................................................244
Reporting Safety Defects (U.S. Only)........................................................................244
Reporting Safety Defects (Canada Only)........................................................................244
Fuses
Fuse Specification Chart.........................246
Changing a Fuse..........................................255
Maintenance
General Information...................................257
Opening and Closing the Hood.............257
Under Hood Overview - 2.3L EcoBoost™........................................................................259
Under Hood Overview - 5.0L.................260
Under Hood Overview - 5.0L, Mach 1.........................................................................261
Engine Oil Dipstick.....................................262
Engine Oil Check.........................................262
Oil Change Indicator Reset.....................263
Changing the Engine Air Filter - 2.3LEcoBoost™/5.0L....................................263
Changing the Engine Air Filter - 5.0L,Mach 1.........................................................264
Engine Coolant Check..............................265
Manual Transmission Fluid Check -6-Speed Manual Transmission – 3160........................................................................269
Manual Transmission Fluid Check -6-Speed Manual Transmission – MT82........................................................................270
Automatic Transmission Fluid Check........................................................................270
Brake Fluid Check.......................................270
Clutch Fluid Check - ManualTransmission..............................................271
Power Steering Fluid Check.....................271
Changing the 12V Battery..........................271
Adjusting the Headlamps........................274
Washer Fluid Check....................................275
Fuel Filter........................................................275
Checking the Wiper Blades.....................276
Changing the Wiper Blades....................276
Changing a Bulb..........................................276
Track Use
Track Use - Mach 1......................................278
Track Use.......................................................285
Vehicle Care
General Information...................................291
General Information - Mach 1.................291
Cleaning Products......................................292
Cleaning the Exterior - Mach 1...............293
Cleaning the Exterior.................................293
Waxing............................................................295
Cleaning the Engine - Mach 1.................295
Cleaning the Engine...................................295
Cleaning the Windows and Wiper Blades........................................................................296
Cleaning the Interior..................................296
Cleaning the Instrument Panel andInstrument Cluster Lens.......................297
Cleaning Leather Seats.............................297
Repairing Minor Paint Damage.............298
Cleaning the Wheels.................................298
Vehicle Storage...........................................298
Cleaning the Convertible Top................300
Body Styling Kits........................................300
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingTable of Contents

Brake fluid - non petroleumbased
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
Electric Parking brake
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
Fasten seatbelt
Flammable
Front fog lamps
Fuel pump reset
Fuse compartment
Hazard flashers
Headlamp high beams
Headlamps on
Heated rear window
Hill descent control
Horn control
Interior luggage compartmentrelease
Jack
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingIntroductionE139209 E67024 E270480 E139223 E139211 E141128 E332905 E139219 E139212 E103308 E67022 E139221 E139228 E71880 E231160 E139214 E75790 E67019 E270968 E163171 E270945 E139231

Adaptive Cruise Control Indicator
(If Equipped)
It illuminates when you switchthe system on.
It illuminates white when thesystem is in standby mode. It illuminatesgreen when you set the adaptive cruisespeed.
See Using Adaptive Cruise Control(page 185).
Airbag Warning Lamp
If it does not illuminate when youswitch the ignition on, continuesto flash or remains on when theengine is running, this indicates amalfunction. Have your vehicle checkedas soon as possible.
Anti-Lock Brake System WarningLamp
If it illuminates when you aredriving, this indicates amalfunction. Your vehiclecontinues to have normal braking withoutthe anti-lock brake system function. Haveyour vehicle checked as soon as possible.
Automatic Headlamp High BeamIndicator (If Equipped)
It illuminates when the systemautomatically turns theheadlamp high beam on.
See What Is Automatic High BeamControl (page 84).
Battery
If it illuminates while driving, itindicates a malfunction. Switchoff all unnecessary electricalequipment and have the systemimmediately checked.
Blind Spot Information SystemIndicator
It illuminates when you switchthe system off.
See Blind Spot InformationSystem (page 197).
Brake System Warning Lamp
WARNING: Driving your vehiclewith the warning lamp on is dangerous.A significant decrease in brakingperformance may occur. It may take youlonger to stop your vehicle. Have yourvehicle checked as soon as possible.Driving extended distances with theparking brake engaged can cause brakefailure and the risk of personal injury.
Note:Indicators vary depending on region.
This lamp is a dual function lamp andilluminates when:
•You apply the parking brake with theignition on.
•Your vehicle has a brake fault or lowbrake fluid level, regardless of parkingbrake position.
If the lamp illuminates when youare moving, you may have theparking brake applied. Make surethe parking brake is off. Haveyour vehicle checked as soon aspossible if the lamp continues toilluminate.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingInstrument ClusterE144524 E67017 E67020 E146105 E67021 E151262 E270480 E67024

Cruise Control Indicator
It illuminates when you switchthe system on.
See Switching Cruise ControlOn and Off (page 184).
Direction Indicator
It illuminates when you switchon the left or right directionindicator or the hazard warningflasher. Flashes during operation. Anincrease in the rate of flashing warns of afailed indicator bulb.
Door Ajar Warning Lamp
Displays when the ignition is onand any door is not completelyclosed.
Engine Coolant TemperatureWarning Lamp
If it illuminates when your vehicleis moving, this indicates that theengine is overheating. Stop yourvehicle as soon as it is safe to do so andswitch the engine off. Have your vehiclechecked as soon as possible.
Fasten Seatbelt Warning Lamp
It illuminates and a chimesounds until you fasten theseatbelts.
Front Fog Lamp Indicator (If Equipped)
It illuminates when you switchthe front fog lamps on.
Headlamp High Beam Indicator
It illuminates when you switchthe high beam headlamps on. Itflashes when you use theheadlamp flasher.
Hood Ajar
It illuminates when the ignitionis on and you do not have thehood completely closed.
Lane Keeping System Lamp
Illuminates when the systemactivates.
Launch Control
Illuminates when this feature isready, including both slip controland engine RPM hold.
Illuminates when only engineRPM hold is active. See TrackUse (page 285).
Low Beam Malfunction
Lights when there is amalfunction with the low beamheadlamp bulb.
Low Fuel Level Warning Lamp
If it illuminates when you aredriving, refuel as soon aspossible.
Low Tire Pressure Warning Lamp
Illuminates when your tirepressure is low. If the lampremains on with the enginerunning or when driving, check your tirepressure as soon as possible.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingInstrument ClusterE71340 E67018 E103308 E71880 E67019 E159324 E144813 E234583 E255688 E181350 E139232

It also illuminates momentarily when youswitch the ignition on to confirm the lampis functional. If it does not illuminate whenyou switch the ignition on, or begins toflash at any time, have the system checkedas soon as possible.
Low Washer Fluid Level WarningLamp
Illuminates when the washerfluid is low.
Oil Pressure Warning Lamp
Illuminates when you switch theignition on.
If it illuminates when the engineis running this indicates a malfunction.Stop your vehicle as soon as it is safe todo so and switch the engine off. Check theengine oil level. If the oil level is sufficient,this indicates a system malfunction. Haveyour vehicle checked as soon as possible.
See Engine Oil Check (page 262).
Parking Lamps
Illuminate when you switch theparking lamps on.
Powertrain Fault
Illuminates when the systemdetects a powertrain fault. Haveyour vehicle checked as soon aspossible.
Service Engine Soon
If it illuminates when the engineis running this indicates amalfunction. The On BoardDiagnostics system has detected amalfunction of the vehicle emission controlsystem.
If it flashes, engine misfire may beoccurring. Increased exhaust gastemperatures could damage the catalyticconverter or other vehicle components.Drive in a moderate fashion (avoid heavyacceleration and deceleration) and haveyour vehicle immediately serviced.
It illuminates when you switch the ignitionon prior to engine start to check the bulband to indicate whether your vehicle isready for Inspection and Maintenance(I/M) testing.
Normally, it illuminates until the enginecranks and automatically turns off if nomalfunctions are present. However, if after15 seconds it flashes eight times, thisindicates that your vehicle is not ready forInspection and Maintenance (I/M) testing.
See Catalytic Converter (page 160).
Shift Indicator (If Equipped)
Illuminates to inform you thatshifting to a higher gear asindicated may give better fueleconomy and lower CO2emissions. It does not illuminate duringperiods of high acceleration, braking orwhen you press the clutch pedal.
Stability Control and TractionControl Indicator
Flashes during operation.
If it does not illuminate when youswitch the ignition on, or remainson when the engine is running, thisindicates a malfunction. Have your vehiclechecked as soon as possible.
Note:The system automatically turns offif there is a malfunction.
See Using Stability Control (page 176).See Using Traction Control (page 174).
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingInstrument ClusterE132353 E67022 E71341 E67028 E138639

ActionMessage
The battery management system determines that the 12V batteryis at a low state of charge. Start the engine to charge the batteryor charge the battery using an aftermarket battery charger. Thismessage clears once you restart your vehicle and the battery stateof charge has recovered.
Battery State ofCharge Low
The battery management system detects an extended low-voltagecondition. Your vehicle disables various features to help preservethe battery. Turn off as many of the electrical loads as soon aspossible to improve system voltage. If the system voltage hasrecovered, the disabled features operate again as normal.
Low BatteryFeatures Tempor-arily Turned Off
The battery management system determines that the battery is ata low state of charge. Turn your ignition off as soon as possible toprotect the battery. This message clears once you restart yourvehicle and the battery state of charge has recovered. Turning offunnecessary electrical loads allow faster battery state-of-chargerecovery.
Turn Power Off ToSave Battery
Blind Spot Information and Cross Traffic Alert System
ActionMessage
A fault with the system has occurred. Have the system checked assoon as possible.Blindspot SystemFault
The system sensors are blocked. See Blind Spot InformationSystem (page 197).Blindspot NotAvailable SensorBlocked SeeManual
The blind spot information system and cross traffic alert systemsensors are blocked. See Blind Spot Information System (page197).
Cross Traffic NotAvailable SensorBlocked SeeManual
A fault with the system has occurred. Have the system checked assoon as possible.Cross TrafficSystem Fault
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingInformation Displays

Exhaust Mode
ActionMessage
Indicates that the exhaust state selected, through the menu or drivemode selection, is for use on the track and may not comply withlocal noise regulations. Only on vehicles with active exhaust.
For Track Use SeeManual
Fuel
ActionMessage
An early reminder of a low fuel condition.Fuel Level Low
The fuel fill inlet may not be properly closed.Check Fuel FillInlet
Hill Start Assist
ActionMessage
Hill start assist is not available. Have the system checked. See HillStart Assist (page 173).Hill Start AssistNot Available
Keys and Passive Key
ActionMessage
A reminder to press the brake while starting the vehicle.To START PressBrake
A reminder to depress the clutch pedal on manual transmissionwhile starting the vehicle.To START PressClutch
The system does not detect a key in your vehicle. See KeylessStarting (page 146).No Key Detected
You pressed the start/stop button to switch off the engine and yourvehicle does not detect your passive key inside your vehicle.Restart Now orKey is Needed
Your vehicle is in the accessory ignition state.Accessory Poweris Active
There is a problem with your vehicle’s starting system, the systemrequires service.Starting SystemFault
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingInformation Displays