2023 FORD MUSTANG service indicator

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

Keep out of reach of children
Lighting control
Low fuel level
Low tire pressure warning
Maintain correct fluid level
Malfunction Indicator Lamp(MIL)
Note operating instructions
Panic alarm
Parking aid
Parking lamps
Passenger airbag activated
Passenger airbag deactivated
Power steering fluid
Power windows front/rear
Power window lockout
Requires registered technician
Safety alert
See Owner's Manual
See Service Manual
Side airbag
Shield the eyes
Stability control
Stability control off
Trail control
Turn Signal
Windshield defrosting system
Windshield wiping system
Windshield wash and wipe
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingIntroductionE161353 E139232 E139229 E67028 E72343 E139213 E71341 E270849 E270850 E139216 E139225 E231159 E65963 E72021 E231158 E167012 E138639 E130458 E332910 E67018 E73953 E270969 E270967

Convertible
The system consists of the following:
•A label or embossed side panelindicating that your vehicle has sideairbags.
•Side airbags inside the driver and frontpassenger seat backrests.
·Crash sensors and monitoringsystem with a readinessindicator. See Crash Sensorsand Airbag Indicator (page 56).
Note:For some models, the passengersensing system deactivates the passengerseat-mounted side airbag if it detects anempty passenger seat.
DRIVER AND PASSENGER
KNEE AIRBAGS
WARNING: To reduce risk of injury,do not obstruct or place objects in thedeployment path of the airbag.
WARNING: Close the glove boxdoor when your vehicle is moving. Failureto follow this instruction could reducethe effectiveness of the passenger kneeairbag and increase the risk of injury in acrash.
A driver knee airbag is located under orwithin the instrument panel. A passengerknee airbag is located within or under theglove box door. During a crash, therestraints control module may activate thedriver and passenger knee airbags basedon crash severity and occupant conditions.Under certain crash and occupantconditions, the driver and passenger kneeairbag may deploy but the driver frontairbag may not activate. As with front andside airbags, it is important to be properlyseated and restrained to reduce the risk ofdeath or serious injury.
Make sure the knee airbags areoperating properly. See CrashSensors and Airbag Indicator(page 56).
SAFETY CANOPY™ - COUPE
WARNING: Do not place objectsor mount equipment on or near theheadliner at the siderail that may comeinto contact with a deploying curtainairbag. Failure to follow theseinstructions may increase the risk ofpersonal injury in the event of a crash.
WARNING: Do not lean your headon the door. The curtain airbag couldinjure you as it deploys from theheadliner.
WARNING: Do not attempt toservice, repair, or modify thesupplementary restraint system orassociated components. Failure tofollow this instruction could result inpersonal injury or death.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingSupplementary Restraints SystemE174777 E67017 E67017

CRASH SENSORS AND
AIRBAG INDICATOR
WARNING: Modifying or addingequipment to the front of your vehiclecould affect the performance of theairbag system, increasing the risk ofinjury. This includes the hood, bumpersystem, frame, front body structure, towhooks, hood pins, push bar andsnowplows.
Your vehicle has a collection of crash andoccupant sensors. These sensors provideinformation to the restraints controlmodule which activates the following:
•Driver airbag.
•Passenger airbag.
•Front seatbelt pretensioners.
•Adaptive steering column.
•Knee airbag(s).
•Seat mounted side airbags.
•Safety Canopy airbags.
Based on the type of crash, the restraintscontrol module deploys the appropriatesafety devices.
The restraints control module alsomonitors the readiness of the above safetydevices plus the crash and occupantsensors. The readiness of the safetysystem is indicated by a warning indicatorlight in the instrument cluster or by abackup tone if the warning light is notworking. Routine maintenance of theairbag is not required.
A difficulty with the system is indicated byone or more of the following:
The readiness light will notilluminate immediately after youswitch the ignition on.
•The readiness light either flashes orstays lit.
•You will hear a series of five tones. Thetone pattern repeats periodically untilthe problem, the light or both arerepaired.
If any of these things happen, evenintermittently, have the supplementalrestraint system serviced at an authorizeddealer immediately. Unless serviced, thesystem may not function properly in theevent of a crash.
The seatbelt pretensioners and the frontairbag supplemental restraint system aredesigned to activate when the vehiclesustains frontal deceleration sufficient tocause the restraints control module todeploy a safety device.
The fact that the seatbelt pretensionersor front airbags did not activate for bothfront seat occupants in a crash does notmean that something is wrong with thesystem. Rather, it means the restraintscontrol module determined the accidentconditions (crash severity, belt usage)were not appropriate to activate thesesafety devices.
•The front airbags activate only infrontal and near-frontal crashes. Frontairbags may activate in rollovers, sideimpacts or rear impacts if the crashcauses sufficient frontal deceleration.
•The seatbelt pretensioners activate infrontal, near-frontal and side crashes,and in rollovers.
•The knee airbag(s) may deploy basedon crash severity and occupantconditions.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingSupplementary Restraints SystemE67017

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

CATALYTIC CONVERTER
WARNING: Do not park, idle ordrive your vehicle on dry grass or otherdry ground cover. The emission systemheats up the engine compartment andexhaust system, creating the risk of fire.
WARNING: The normal operatingtemperature of the exhaust system isvery high. Never work around or attemptto repair any part of the exhaust systemuntil it has cooled. Use special care whenworking around the catalytic converter.The catalytic converter heats up to a veryhigh temperature after only a shortperiod of engine operation and stays hotafter the engine is switched off.
WARNING: Exhaust leaks mayresult in entry of harmful and potentiallylethal fumes into the passengercompartment. If you smell exhaustfumes inside your vehicle, have yourvehicle inspected immediately. Do notdrive if you smell exhaust fumes.
Your vehicle has various emission controlcomponents and a catalytic converter thatenables it to comply with applicableexhaust emission standards.
To make sure that the catalytic converterand other emission control componentscontinue to work properly:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 235).
•Use only the specified fuel listed.
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Resulting component damage maynot be covered by the vehicle Warranty.
The scheduled maintenance items listedin scheduled maintenance information areessential to the life and performance ofyour vehicle and to its emissions system.
If you use anything other than Ford,Motorcraft or Ford-authorized parts formaintenance replacements or for serviceof components affecting emission control,such non-Ford parts should be equivalentto genuine Ford Motor Company parts inperformance and durability.
Illumination of the service engine soonindicator, charging system warning light orthe temperature warning light, fluid leaks,strange odors, smoke or loss of enginepower could indicate that the emissioncontrol system is not working properly.
An improperly operating or damagedexhaust system may allow exhaust toenter the vehicle. Have a damaged orimproperly operating exhaust systeminspected and repaired immediately.
Do not make any unauthorized changes toyour vehicle or engine. By law, vehicleowners and anyone who manufactures,repairs, services, sells, leases, tradesvehicles, or supervises a fleet of vehiclesare not permitted to intentionally removean emission control device or prevent itfrom working. Information about yourvehicle’s emission system is on the VehicleEmission Control Information Decallocated on or near the engine. This decalalso lists engine displacement.
Please consult your warranty informationfor complete details.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingEngine Emission Control

On-Board Diagnostics (OBD-II)
Your vehicle has a computer known as theon-board diagnostics system (OBD-II) thatmonitors the engine’s emission controlsystem. The system protects theenvironment by making sure that yourvehicle continues to meet governmentemission standards. The OBD-II systemalso assists a service technician in properlyservicing your vehicle.
When the service engine soonindicator illuminates, the OBD-IIsystem has detected amalfunction. Temporary malfunctions maycause the service engine soon indicator toilluminate. Examples are:
1.Your vehicle has run out of fuel—theengine may misfire or run poorly.
2.Poor fuel quality or water in thefuel—the engine may misfire or runpoorly.
3.The fuel fill inlet may not have closedproperly. See Refueling (page 155).
4.Driving through deep water—theelectrical system may be wet.
You can correct these temporarymalfunctions by filling the fuel tank withgood quality fuel, properly closing the fuelfill inlet or letting the electrical system dryout. After three driving cycles without theseor any other temporary malfunctionspresent, the service engine soon indicatorshould stay off the next time you start theengine. A driving cycle consists of a coldengine startup followed by mixed city andhighway driving. No additional vehicleservice is required.
If the service engine soon indicator remainson, have your vehicle serviced at the firstavailable opportunity. Although somemalfunctions detected by the OBD-II maynot have symptoms that are apparent,continued driving with the service enginesoon indicator on can result in increasedemissions, lower fuel economy, reducedengine and transmission smoothness andlead to more costly repairs.
Readiness for Inspection andMaintenance (I/M) Testing
Some state and provincial and localgovernments may haveInspection/Maintenance (I/M) programsto inspect the emission control equipmenton your vehicle. Failure to pass thisinspection could prevent you from gettinga vehicle registration.
If the service engine soonindicator is on or the bulb doesnot work, your vehicle may needservice. See On-Board Diagnostics.
Your vehicle may not pass the I/M test ifthe service engine soon indicator is on ornot working properly (bulb is burned out),or if the OBD-II system has determinedthat some of the emission control systemshave not been properly checked. In thiscase, the vehicle is not ready for I/Mtesting.
If the vehicle’s engine or transmission hasjust been serviced, or the battery hasrecently run down or been replaced, theOBD-II system may indicate that thevehicle is not ready for I/M testing. Todetermine if the vehicle is ready for I/Mtesting, turn the ignition key to the onposition for 15 seconds without crankingthe engine. If the service engine soonindicator blinks eight times, it means thatthe vehicle is not ready for I/M testing; ifthe service engine soon indicator stays onsolid, it means that your vehicle is readyfor I/M testing.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingEngine Emission ControlE67028 E67028

ESSENTIAL TOWING CHECKS
Follow these guidelines for safe towing:
•Do not tow a trailer until you drive yourvehicle at least 1,000 mi (1,600 km).
•Consult your local motor vehicle lawsfor towing a trailer.
•See the instructions included withtowing accessories for the properinstallation and adjustmentspecifications.
•Service your vehicle more frequently ifyou tow a trailer. See your scheduledmaintenance information.
•If you use a rental trailer, follow theinstructions the rental agency givesyou.
You can find information on loadspecification terms found on the tire labeland Safety Compliance label as well asinstructions on calculating your vehicle'sload in the Load Carrying chapter. SeeLoad Limit (page 214).
Remember to account for the trailertongue weight as part of your vehicle loadwhen calculating the total vehicle weight.
Hitches
Do not use a hitch that either clamps ontothe bumper or attaches to the axle.
Distribute the trailer load so 10-15% of thetotal trailer weight is on the tongue.
Safety Chains
Note:Never attach safety chains to thebumper.
Always connect the safety chains to thehook retainers of your vehicle hitch.
To connect the safety chains, cross themunder the trailer tongue and allow enoughslack for turning tight corners. Do not allowthe chains to drag on the ground.
Trailer Brakes
WARNING: Do not connect atrailer's hydraulic brake system directlyto your vehicle's brake system. Yourvehicle may not have enough brakingpower and your chances of having acollision greatly increase.
Electric brakes and manual, automatic orsurge-type trailer brakes are safe if youinstall them properly and adjust them tothe manufacturer's specifications. Thetrailer brakes must meet local and federalregulations.
The rating for the tow vehicle's brakingsystem operation is at the gross vehicleweight rating, not the gross combinedweight rating.
Trailer Lamps
WARNING: Never connect anytrailer lamp wiring to the vehicle's taillamp wiring; this may damage theelectrical system resulting in fire. Contactyour authorized dealer as soon aspossible for assistance in proper trailertow wiring installation. Additionalelectrical equipment may be required.
Trailer lamps are required on most towedvehicles. Make sure all running lights, brakelights, direction indicators and hazard lightsare working.
Before Towing a Trailer
Practice turning, stopping and backing upto get the feel of your vehicle-trailercombination before starting on a trip.When turning, make wider turns so thetrailer wheels clear curbs and otherobstacles.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingTowing