GENERAL INFORMATION
Have your vehicle serviced regularly to helpmaintain its roadworthiness and resalevalue. There is a large network ofauthorized dealers that are there to helpyou with their professional servicingexpertise. We believe that their speciallytrained technicians are best qualified toservice your vehicle properly and expertly.They are supported by a wide range ofhighly specialized tools developedspecifically for servicing your vehicle.
If your vehicle requires professional service,an authorized dealer can provide thenecessary parts and service. Check yourwarranty information to find out whichparts and services are covered.
Use only recommended fuels, lubricants,fluids and service parts conforming tospecifications. Motorcraft® parts aredesigned and built to provide the bestperformance in your vehicle.
Precautions
•Do not work on a hot engine.
•Make sure that nothing gets caught inmoving parts.
•Do not work on a vehicle with theengine running in an enclosed space,unless you are sure you have enoughventilation.
•Keep all open flames and other burningmaterial, such as cigarettes, away fromthe battery and all fuel related parts.
Working with the Engine Off
1.Set the parking brake and shift thetransmission to park (P), for automatictransmission, or neutral (N), for manualtransmission.
2.Switch off the engine.
3.Block the wheels.
Working with the Engine On
WARNING: To reduce the risk ofvehicle damage and personal burninjuries, do not start your engine with theair cleaner removed and do not removeit while the engine is running.
1.Set the parking brake and shift thetransmission to park (P), for automatictransmission, or neutral (N), for manualtransmission.
2.Block the wheels.
OPENING AND CLOSING THE
HOOD
Opening the Hood
1.Inside the vehicle, pull the hood releasehandle located under the left-handside of the instrument panel.
2.Slightly lift the hood.
257
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenanceE142457
ENGINE OIL DIPSTICK
Minimum.A
Nominal.B
Maximum.C
ENGINE OIL CHECK
1.Make sure that your vehicle is on levelground.
2.Check the oil level before starting theengine, or switch the engine off afterwarm up and wait 15 minutes for theoil to drain into the oil pan.
Note:Checking the oil level too soon couldresult in an inaccurate reading.
3.Remove the dipstick and wipe it witha clean, lint-free cloth.
4.Reinstall the dipstick and make sure itis fully seated.
5.Remove the dipstick again to check theoil level.
Note: If the oil level is between themaximum and minimum marks, the oil levelis acceptable. Do not add oil.
6.If the oil level is at the minimum mark,immediately add oil.
7.Reinstall the dipstick. Make sure it isfully seated.
Note:The oil consumption of new enginesreaches its normal level after approximately3,000 mi (5,000 km).
Note:Increases in oil level can occur fromfrequent short trips that do not allow theengine to get to operating temperature, aswell as frequent idling or low speed drivingfor long periods of time.
Note:If oil levels are continuously notedabove the maximum mark, schedule a visitto your authorized dealer.
Adding Engine Oil
WARNING: Do not add engine oilwhen the engine is hot. Failure to followthis instruction could result in personalinjury.
WARNING: Do not remove the fillercap when the engine is running.
Do not use supplemental engine oiladditives because they are unnecessaryand could lead to engine damage that thevehicle warranty may not cover.
1.Clean the area surrounding the engineoil filler cap before you remove it.
2.Remove the engine oil filler cap.
3.Add engine oil that meets ourspecifications. See Capacities andSpecifications (page 337).
4.Reinstall the engine oil filler cap. Turnit clockwise until you feel a strongresistance.
Note: Do not add oil further than themaximum mark. Oil levels above themaximum mark may cause engine damage.
Note:Immediately soak up any oil spillagewith an absorbent cloth.
262
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenanceE270482
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.
WARNING: Do not put coolant inthe windshield washer reservoir. Ifsprayed on the windshield, coolant couldmake it difficult to see through thewindshield.
Note: Do not use stop leak pellets, coolingsystem sealants, or non-specified additivesas they can cause damage to the enginecooling or heating systems. Resultingcomponent damage may not be covered bythe vehicle Warranty.
Note:Automotive fluids are notinterchangeable.
It is very important to use predilutedcoolant approved to the correctspecification in order to avoid plugging thesmall passageways in the engine coolingsystem. See Capacities andSpecifications (page 337). Do not mixdifferent colors or types of coolant in yourvehicle. Mixing of engine coolants or usingan incorrect coolant may harm the engineor cooling system components and maynot be covered by the vehicle Warranty.
Note:If prediluted coolant is not available,use the approved concentrated coolantdiluting it to 50/50 with distilled water. SeeCapacities and Specifications (page 337).Using water that has not been deionisedmay contribute to deposit formation,corrosion and plugging of the small coolingsystem passageways.
Note: Coolants marketed for all makes andmodels may not be approved to ourspecifications and may cause damage tothe cooling system. Resulting componentdamage may not be covered by the vehicleWarranty.
If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
To top up the coolant level do thefollowing:
1.Unscrew the cap slowly. Any pressureescapes as you unscrew the cap.
2.Add prediluted coolant approved tothe correct specification. SeeCapacities and Specifications (page337).
3.Add enough prediluted coolant toreach the correct level.
4.Replace the coolant reservoir cap. Turnthe cap clockwise until it contacts thehard stop.
5.Check the coolant level in the coolantreservoir the next few times you driveyour vehicle. If necessary, add enoughprediluted engine coolant to bring thecoolant level to the correct level.
If you have to add more than 1.1 qt (1 L) ofengine coolant per month, have yourvehicle checked as soon as possible.Operating an engine with a low level ofcoolant can result in engine overheatingand possible engine damage.
In case of emergency, you can add a largeamount of water without engine coolantin order to reach a vehicle service location.In this instance, qualified personnel:
1.Must drain the cooling system.
2.Chemically clean the coolant system.
3.Refill with engine coolant as soon aspossible.
266
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenance
The battery warning lamp flashes threetimes to confirm that the reset issuccessful.
Battery Management System (If
Equipped)
The system monitors battery conditionsand takes actions to extend battery life. Ifexcessive battery drain is detected, thesystem temporarily disables someelectrical systems to protect the battery.
Systems included are:
•Heated rear window.
•Heated seats.
•Climate control.
•Heated steering wheel.
•Audio unit.
•Navigation system.
A message may appear in the informationdisplay to alert you that battery protectionactions are active. This message is only fornotification that an action is taking place,and not intended to indicate an electricalproblem or that the battery requiresreplacement.
After battery replacement, or in somecases after charging the battery with anexternal charger, the battery managementsystem requires eight hours of vehicle sleeptime to relearn the battery state of charge.During this time, your vehicle must remainfully locked with the ignition switched off.
Note:Prior to relearning the battery stateof charge, the battery management systemmay temporarily disable some electricalsystems.
Electrical Accessory Installation
To make sure the battery managementsystem works correctly, do not connect anelectrical device ground connectiondirectly to the battery negative post. Thiscan cause inaccurate measurements ofthe battery condition and potentialincorrect system operation.
Note:If you add electrical accessories orcomponents to the vehicle, it may adverselyaffect battery performance and durability.This may also affect the performance ofother electrical systems in the vehicle.
Remove and Reinstall the Battery
Install a battery approved for use by ourspecifications. See Capacities andSpecifications (page 337).
To disconnect or remove the battery, dothe following:
1.Apply the parking brake and switch theignition off.
2.Switch all electrical equipment off, forexample lights and radio.
3.Wait a minimum of two minutes beforedisconnecting the battery.
Note:The engine management system hasa power hold function and remains poweredfor a period of time after you switch theignition off. This is to allow the system tostore diagnostic and adaptive tables.Disconnecting the battery without waitingcan cause damage not covered by thevehicle warranty.
4.Disconnect the negative battery cableterminal.
5.Disconnect the positive battery cableterminal.
6.Remove the battery securing clamp.
7.Remove the battery.
8.To install, reverse the removalprocedure.
273
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenance
Note:Before reconnecting the battery,make sure the ignition remains switched off.
Note:Make sure to fully tighten the batterycables.
If you disconnect or replace the vehiclebattery, you must reset the followingfeatures:
•Window bounce-back. See PowerWindows (page 86).
•Clock Settings.
•Pre-set radio stations.
Battery Disposal
Make sure that you dispose ofold batteries in anenvironmentally friendly way.Seek advice from your local authorityabout recycling old batteries.
ADJUSTING THE HEADLAMPS
Vertical Aim Adjustment
The headlamps on your vehicle areproperly aimed at the assembly plant. Ifyour vehicle has been in an accident, havethe alignment of your headlamps checkedby an authorized dealer.
Headlamp Aiming Target
8 ft (2.4 m).A
Center height of lamp to ground.B
25 ft (7.6 m).C
Horizontal reference line.D
Vertical Aim Adjustment
1.Park the vehicle directly in front of awall or screen on a level surface,approximately 25 ft (7.6 m) away.
2.Measure the height from the center ofyour headlamp indicated by a 3 mmcircle on the lens to the ground andmark an 8 ft (2.4 m) horizontalreference line on the vertical wall orscreen at this height, a piece ofmasking tape works well.
Note:To see a clearer light pattern foradjusting, you may want to block the lightfrom one headlamp while adjusting theother.
3.Turn on the low beam headlamps toilluminate the wall or screen and openthe hood. Cover one of the headlampsso no light hits the wall.
274
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenanceE107998 E142592
4.On the wall or screen you will observea flat zone of high intensity light at thetop of the right-hand portion of thebeam pattern. If the top edge of thehigh intensity light zone is not at thehorizontal reference line, the headlampneeds to be adjusted.
5.Locate the vertical adjuster on eachheadlamp. Use a Phillips #2screwdriver to turn the adjuster eitherclockwise or counterclockwise toadjust the vertical aim of theheadlamp.
6.Repeat Steps 3 through 7 to adjust theother headlamp.
7.Close the hood and turn off the lamps.
Horizontal Aim Adjustment
The horizontal aim does not require anyadjustment for this vehicle. If a faultoccurs, have the system checked by anauthorized dealer.
WASHER FLUID CHECK
WARNING: If you operate yourvehicle in temperatures below 40°F(5°C), use washer fluid with antifreezeprotection. Failure to use washer fluidwith antifreeze protection in coldweather could result in impairedwindshield vision and increase the riskof injury or accident.
Add fluid to fill the reservoir if the level islow. Only use a washer fluid that meetsFord specifications. See Capacities andSpecifications (page 337).
State or local regulations on volatileorganic compounds may restrict the useof methanol, a common windshield washerantifreeze additive. Washer fluidscontaining non-methanol antifreezeagents should be used only if they providecold weather protection without damagingthe vehicle’s paint finish, wiper blades orwasher system.
FUEL FILTER
Your vehicle is equipped with a lifetimefuel filter that is integrated with the fueltank. Regular maintenance or replacementis not needed.
275
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenanceE142465 E250054
CHECKING THE WIPER
BLADES
Run the tip of your fingers over the edge ofthe blade to check for roughness.
Clean the wiper blades with washer fluidor water applied with a soft sponge orcloth.
CHANGING THE WIPER
BLADES
1.Pull the wiper blade and arm awayfrom the glass and press the lockingbuttons together.
2.Rotate and remove the wiper blade.
3.Attach the new blade to the arm andsnap it into place.
Replace wiper blades at least once peryear for optimum performance.
Poor wiper quality can be improved bycleaning the wiper blades and thewindshield. See Cleaning the Windowsand Wiper Blades (page 296).
CHANGING A BULB
Replacing Reverse Lamp Bulbs
1.Make sure the lighting control is in theoff position.
2.Locate the reverse lamp bulb under therear bumper of your vehicle. To accessthe bulb, reach behind the bumper.
3.Disconnect the electrical sensor fromthe bulb by pulling it straight off.
4.Rotate the bulb counterclockwise andremove it from the reverse lampassembly.
LED Lamps
LED lamps are not serviceable items.Contact an authorized dealer if they fail.
The following are LED lamps:
•Headlamps.
•Rear lamp.
•Brake lamp.
•Front fog lamp.
•Front sidemarker
•Daytime running lamp.
276
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenanceE142463 E129990 E177487
TRACK USE - MACH 1
Operating at High Speeds andTrack Days
Your vehicle is capable of sustained highspeeds and track day driving.
Before operating your vehicle at highspeeds:
•Verify your tires have the correctpressures.
•Inspect wheels and tires for wear anddamage. Replace any damaged wheelsand tires.
•Check and set lug nut torque. SeeTechnical Specifications (page 336).
•Verify fluid levels for oil, coolant, brakeand hydraulic fluid. See Capacitiesand Specifications (page 337).
•Change the engine oil and replace theengine oil filter prior to use on the track.Change the engine oil and filter againafter every four hours of track time.Maintain the engine oil level at or nearthe max mark on the engine oil dipstick.See Engine Oil Check (page 262).
•Replace the brake fluid with freshMotorcraft/Ford DOT 4 LV HighPerformance Brake Fluid or other DOTcompliant fluid with a dry boiling pointgreater than 500°F (260°C) from asealed container. Do not use siliconeor DOT 5 brake fluids.
•If you are operating your Mach 1 on adrag strip, use drag strip selectabledrive mode in addition to using line lockand launch control to provide a specificset-up tuned for the quickest straightline elapsed times.
•If you are operating your Mach 1 on aroad course, use sport or trackselectable drive modes to provide aspecific set-up tuned for optimal shiftand suspension set-up that is tunedtowards handling prowess on closedcourse surfaces.
After operating your vehicle at high speedsor track day driving, do the following:
•Set the tire pressure to the properspecification.
•Check and set the lug nut torque. SeeTechnical Specifications (page 336).
•Check all fluid levels.
•Refer to the track maintenance intervalchart. See Normal ScheduledMaintenance (page 452).
•Check the front and rear wheelbearings for abnormal wear.
•Inspect brake caliper dust boots forabnormal wear.
Track Apps
WARNING: Track Apps™ is fortrack use only. Remember that evenadvanced technology cannot defy thelaws of physics. It is always possible tolose control of a vehicle due toinappropriate driver input for theconditions. Aggressive driving on anyroad condition can cause you to losecontrol of your vehicle increasing the riskof personal injury or property damage.
278
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingTrack Use (If Equipped)