2023 FORD MUSTANG ignition

The system does not function if:
•The key frequencies are jammed.
•The key battery has no charge.
If you are unable to start the engine, do thefollowing:
1.Remove the rubber covering (A) in thecupholder.
2.Place the remote in the backup slot (B)with the buttons facing up and thekeyring toward the front of the vehicle.
3.With the key in this position, press thebrake pedal (automatic transmission)or clutch pedal (manual transmission),then the START button to switch theignition on and start your vehicle.
Fast Restart
The fast restart feature allows you torestart the engine within 20 seconds ofswitching it off, even if a valid key is notpresent.
Within 20 seconds of switching the engineoff, press the brake pedal (automatictransmission) or clutch pedal (manualtransmission) and press the button. After20 seconds have expired, you can nolonger restart the engine without the keypresent inside your vehicle.
Once the engine has started, it remainsrunning until you press the button, even ifthe system does not detect a valid key. Ifyou open and close a door while the engineis running, the system searches for a validkey. You cannot restart the engine if thesystem does not detect a valid key within20 seconds.
Failure to Start
If you cannot start the engine after threeattempts, wait 10 seconds and follow thisprocedure:
1.If your vehicle has an automatictransmission, fully press the brakepedal. If your vehicle has a manualtransmission, fully press the clutchpedal and apply the handbrake.
2.Move the transmission selector leverto park (P) (automatic transmission)or neutral (N) (manual transmission).
3.Fully press the accelerator pedal andhold it there.
4.Attempt to start your vehicle and waituntil the engine stops cranking.
5.Release the accelerator pedal.
6.Start the engine.
Automatic Engine Shutdown
Your vehicle has a feature thatautomatically shuts down the engine if ithas been idling for an extended period. Theignition also turns off in order to savebattery power. Before the engine shutsdown, a message appears in theinformation display showing a timercounting down from 30 seconds. If you donot intervene within 30 seconds, the engineshuts down. Another message appears inthe information display to inform you thatthe engine has shut down in order to savefuel. Start your vehicle as you normally do.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingStarting and Stopping the EngineE174956

Automatic Engine Shutdown Override
Note: You cannot permanently switch offthe automatic engine shutdown feature.When you switch it off temporarily, it turnson at the next ignition cycle.
You can stop the engine shutdown, or resetthe timer, at any point before the30-second countdown has expired bydoing any of the following:
•You can reset the timer by interactingwith your vehicle, such as pressing thebrake pedal or accelerator pedal.
•You can temporarily switch off theshutdown feature any time the ignitionis on for the current ignition cycle only.Use the information display to do so.See Information Displays (page 98).
•During the countdown before engineshutdown, you are prompted to pressOK or RESET, depending on your typeof information display, to temporarilyswitch the feature off for the currentignition cycle only.
Stopping the Engine When YourVehicle is Stationary
1.Move the transmission selector leverto park (P) (automatic transmission)or neutral (N) (manual transmission).
2.Press the button once.
3.Apply the parking brake.
Note:This switches off the ignition, allelectrical circuits, warning lamps andindicators.
Note:If the engine is idling for 30 minutes,the ignition and engine automatically shutdown.
Stopping the Engine When YourVehicle is Moving
WARNING: Switching off theengine when your vehicle is still movingresults in a significant decrease inbraking assistance. Higher effort isrequired to apply the brakes and to stopyour vehicle. A significant decrease insteering assistance could also occur. Thesteering does not lock, but higher effortcould be required to steer your vehicle.When you switch the ignition off, someelectrical circuits, for example airbags,also turn off. If you unintentionally switchthe ignition off, shift into neutral (N) andrestart the engine.
1.Press and hold the button for onesecond, or press it three times withintwo seconds.
2.Move the transmission selector leverto the neutral position and use thebrakes to bring your vehicle to a safestop.
3.When your vehicle has stopped, movethe transmission selector lever to park(P) (automatic transmission) orneutral (N) (manual transmission).
4.Apply the parking brake.
Guarding Against Exhaust Fumes
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.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingStarting and Stopping the Engine

Some fuel stations, particularly those inhigh altitude areas, offer fuels posted asregular unleaded gasoline with an octanerating below 87. The use of these fuelscould result in engine damage that will notbe covered by the vehicle warranty.
For best overall vehicle and engineperformance, premium fuel with an octanerating of 91 or higher is recommended. Theperformance gained by using premium fuelis most noticeable in hot weather as wellas other conditions, for example whentowing a trailer. See Towing (page 219).
Do not be concerned if the enginesometimes knocks lightly. However, if theengine knocks heavily while using fuel withthe recommended octane rating, contactan authorized dealer to prevent any enginedamage.
We recommend Top Tier detergentgasolines, where available to help minimizeengine deposits and maintain optimalvehicle and engine performance. Foradditional information, refer towww.toptiergas.com.
Note:Use of any fuel for which the vehiclewas not designed can impair the emissioncontrol system, cause loss of vehicleperformance, and cause damage to theengine which may not be covered by thevehicle Warranty.
Do not use:
•Diesel fuel.
•Fuels containing kerosene or paraffin.
•Fuel containing more than 15% ethanolor E85 fuel.
•Fuels containing methanol.
•Fuels containing metallic-basedadditives, including manganese-basedcompounds.
•Fuels containing the octane boosteradditive, methylcyclopentadienylmanganese tricarbonyl (MMT).
•Leaded fuel, using leaded fuel isprohibited by law.
The use of fuels with metallic compoundssuch as methylcyclopentadienylmanganese tricarbonyl (commonly knownas MMT), which is a manganese-basedfuel additive, will impair engineperformance and affect the emissioncontrol system.
FUEL FILLER FUNNEL
LOCATION
The fuel filler funnel is under the luggagecompartment floor covering.
RUNNING OUT OF FUEL
Running out of fuel can cause damage notcovered by the vehicle Warranty.
If your vehicle runs out of fuel:
•Add a minimum of 1.3 gal (5 L) of fuelto restart the engine.
•You may need to switch the ignitionfrom off to on several times afterrefueling to allow the fuel system topump the fuel from the tank to theengine. When restarting, cranking timetakes a few seconds longer thannormal.
Note:If your vehicle is on a steep slope,more fuel may be required.
Filling a Portable Fuel Container
WARNING: Flow of fuel through afuel pump nozzle can produce staticelectricity. This can cause a fire if you arefilling an ungrounded fuel container.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingFuel and Refueling

Filling the Fuel Tank
For consistent results when refueling:
•Switch the ignition off before fueling,an inaccurate reading results if youleave the engine running.
•Use the same fill rate,low-medium-high, each time you fillthe tank.
•Allow no more than one automaticshut-off when refueling.
Results are most accurate when the fillingmethod is consistent.
Calculating Fuel Economy
Your vehicle calculates fuel economyfigures through the trip computer averagefuel function. See Information Displays(page 98).
The first 1,000 mi (1,600 km) of driving isthe break-in period of the engine. Thesystem obtains a more accuratemeasurement after 2,000–3,000 mi(3,200–4,800 km).
Keep a record for at least one month andrecord the type of driving, for example cityor highway. This provides an accurateestimate of your vehicle’s fuel economyunder current driving conditions. Keepingrecords during summer and winter showshow temperature impacts fuel economy.
Conditions Influencing Fuel Efficiency
See Driving Economically (page 230).
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingFuel and Refueling

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

The OBD-II system checks the emissioncontrol system during normal driving. Acomplete check may take several days.
If the vehicle is not ready for I/M testing,you can perform the following driving cycleconsisting of mixed city and highwaydriving:
1.15 minutes of steady driving on anexpressway or highway followed by 20minutes of stop-and-go driving with atleast four 30-second idle periods.
2.Allow your vehicle to sit for at leasteight hours with the ignition off. Then,start the vehicle and complete theabove driving cycle. The vehicle mustwarm up to its normal operatingtemperature. Once started, do not turnoff the vehicle until the above drivingcycle is complete.
If the vehicle is still not ready for I/Mtesting, you need to repeat the abovedriving cycle.
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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

Reverse (R)
Note:Make sure that your vehicle is at acomplete stop before you shift into reverse(R). Failure to do so could damage thetransmission.
1.Press the clutch pedal to the floor todisengage clutch.
2.Shift into reverse (R) by raising thecollar below the gearshift knob up, thenmoving the lever fully to the left, thenforward.
Note:The gearshift lever can only bemoved to reverse (R) by raising the collarbelow the gearshift knob up before shiftingto reverse (R). This is a lockout featurewhich protects the transmission fromaccidentally engaging reverse (R) whenintending to select first (1).
If reverse (R) is not fully engaged, pressthe clutch pedal down and return thegearshift to the neutral (N) position.Release the clutch pedal for a moment,then raise the collar and shift to reverse(R) again.
Parking Your Vehicle
WARNING: Always set the parkingbrake fully and make sure you shift thegearshift lever to first gear. Switch theignition off and remove the key wheneveryou leave your vehicle.
To park your vehicle:
1.Apply the brake and shift into theneutral (N) position.
2.Fully apply the parking brake, hold theclutch pedal down, then shift into first(1).
3.Turn the ignition off.
After you have turned the engine off, youcan release the clutch pedal.
AUTOMATIC TRANSMISSION
(IF EQUIPPED)
WARNING: Always fully apply theparking brake and make sure you shiftinto park (P). Failure to follow thisinstruction could result in personal injuryor death.
WARNING: Do not apply the brakepedal and accelerator pedalsimultaneously. Applying both pedalssimultaneously for more than a fewseconds will limit engine performance,which may result in difficulty maintainingspeed in traffic and could lead to seriousinjury.
WARNING: When your vehicle isstationary, keep the brake pedal fullypressed when shifting gears. Failure tofollow this instruction could result inpersonal injury, death or propertydamage.
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2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingTransmissionE99067