warning light FORD MUSTANG 2023 Service Manual

Adaptive Learning (If Equipped)
The electronic power steering systemadaptive learning helps correct roadirregularities and improves overall handlingand steering feel. It communicates withthe brake system to help operateadvanced stability control and accidentavoidance systems. Additionally, wheneverthe battery is disconnected or a newbattery installed, you must drive yourvehicle a short distance before the systemrelearns the strategy and reactivates allsystems.
PRE-COLLISION ASSIST (IF
EQUIPPED)
WARNING: You must remain inyour vehicle when the system turns on.At all times, you are responsible forcontrolling your vehicle, supervising thesystem and intervening, if required.Failure to take care may result in the lossof control of your vehicle, seriouspersonal injury or death.
WARNING: The system does notdetect vehicles that are driving in adifferent direction, cyclists or animals.Apply the brakes when necessary. Failureto follow this instruction could result inthe loss of control of your vehicle,personal injury or death.
WARNING: The system does notoperate during hard acceleration orsteering. Failure to take care may leadto a crash or personal injury.
WARNING: The system may fail oroperate with reduced function duringcold and severe weather conditions.Snow, ice, rain, spray and fog canadversely affect the system. Keep thefront camera and radar free of snow andice. Failure to take care may result in theloss of control of your vehicle, seriouspersonal injury or death.
WARNING: Some situations andobjects prevent hazard detection. Forexample low or direct sunlight, inclementweather, unconventional vehicle types,and pedestrians. Apply the brakes whennecessary. Failure to follow thisinstruction could result in the loss ofcontrol of your vehicle, personal injury ordeath.
WARNING: The system cannothelp prevent all crashes. Do not rely onthis system to replace driver judgmentand the need to maintain a safe distanceand speed.
Using the Pre-Collision AssistSystem
The system is active at speeds above3 mph (5 km/h) and pedestrian detectionis active at speeds up to 50 mph(80 km/h).
If your vehicle is rapidly approachinganother stationary vehicle, a vehicletraveling in the same direction as yours, ora pedestrian within your driving path, thesystem provides three levels offunctionality:
1.Alert.
2.Brake support.
203
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingDriving AidsE156130

3.Active braking.
Alert: When active, a flashing visualwarning and an audible warning tonesounds.
Brake support: The system helps reducethe impact speed by preparing the brakesfor rapid braking. The system does notautomatically apply the brakes. If you pressthe brake pedal, the system can applyadditional braking up to maximum brakingforce, even if you lightly press the brakepedal.
Active braking: It activates if the systemdetermines that a collision is about tooccur. The system may help the driverreduce impact damage or completelyavoid the crash.
Note:Brake support and active braking areactive at speeds up to 80 mph (130 km/h).If your vehicle has a radar sensor withadaptive cruise control, then brake supportand active braking are active up to themaximum speed of your vehicle.
Note:If you perceive pre-collision assistalerts as being too frequent or disturbing,you can reduce the alert sensitivity, thoughthe manufacturer recommends using thehighest sensitivity setting. Setting lowersensitivity would lead to fewer and latersystem warnings.
Note:The system turns off when youmanually disable AdvanceTrac™, or whenyou select track mode.
Distance Indication and Alert (If
Equipped)
Distance indication and alert provides agraphical indication of the time gap toother preceding vehicles traveling in thesame direction. The distance indicationand alert screen in the information displayshows an image similar to the one thatfollows.
If the time gap to a preceding vehicle issmall, a red visual indication displays tothe driver.
Note:Distance indication and alertdeactivates and the images do not displaywhen adaptive cruise control is active.
204
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingDriving AidsE255268 E190004

TOWING A TRAILER - MACH 1
WARNING: Your vehicle isnot approved for trailer towing.Never tow a trailer with yourvehicle.
TOWING A TRAILER
WARNING: Do not exceedthe GVWR or the GAWRspecified on the certificationlabel.
WARNING: Towing trailersbeyond the maximumrecommended gross trailerweight exceeds the limit of yourvehicle and could result in enginedamage, transmission damage,structural damage, loss ofvehicle control, vehicle rolloverand personal injury.
Note:There may be electricalitems such as fuses or relays thatcan affect trailer towing operation.See Fuses (page 246).
The load capacity of your vehicleis designated by weight notvolume. You may not necessarilybe able to use all available spacewhen loading your vehicle ortrailer.
Towing a trailer places extra loadon the engine, transmission, axle,brakes, tires, and suspension.Inspect these components before,during and after towing.
Load Placement
To help minimize how trailermovement affects the vehiclewhen driving:
•Load the heaviest items closestto the trailer floor.
•Load the heaviest items in thecenter of the left and right sidetrailer tires.
•Load the heaviest items abovethe trailer axles or just slightlyforward toward the trailertongue. Do not allow the finaltrailer tongue weight to go
above or below 10-15% of theloaded trailer weight.
•Select a ball mount with thecorrect rise or drop. When boththe loaded vehicle and trailerare connected, the trailer frameshould be level, or slightlyangled down toward thevehicle, when viewed from theside.
When driving with a trailer orpayload, a slight takeoff vibration
or shudder may be present due tothe increased payload weight.Additional information regardingproper trailer loading and settingyour vehicle up for towing islocated in the Load Carryingchapter. See Load Limit (page214).
219
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingTowing

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.
221
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingTowing

CLOSING THE CONVERTIBLE
TOP
Closing the Convertible Top
1.Bring your vehicle to a complete stopand make sure to leave the ignition on.We recommend that your vehicleremains running when you open thetop to prevent draining the battery.
Note:The convertible top does not operateunless your vehicle is stationary or travelingunder 3 mph (5 km/h). A tone sounds anda warning message appears in theinstrument panel. When you slow down, thetop operates.
2.Press and hold the convertible topcontrol. When the convertible latchhandle is within reach, make sure it isdown and that you rotate it clockwiseso the latch is in the fully openedposition. Continue pressing theconvertible top control until thewindows completely lower, and thetop unfolds and moves forward towardthe windshield header.
3.When the top lines up evenly with thewindshield header, release theconvertible top control.
Latching the Convertible Top
1.Pull down on the latch handle androtate it counter-clockwise to securethe convertible top.
2.After securing the convertible top fully,push the latch handle up into thestowed position to secure the latch.
Note:When you latch or unlatch theconvertible top, the audio system brieflymutes. This allows the vehicle to optimizethe cabin’s sound quality depending on theposition of the convertible top.
Note:If you keep the top open for anextended period of time or if thetemperature is low, the top material mayshrink slightly. If this happens, pull on thelatch handle to secure the top.
229
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingConvertible Top (If Equipped)E174568 E178453

•Follow the recommended maintenanceschedule and carry out therecommended checks.
•Plan your journey and check the trafficbefore you set off. It is more efficientto combine errands into a single tripwhenever possible.
•Avoid idling the engine in cold weatheror for extended periods. Start theengine only when you are ready to setoff.
•Do not carry unnecessary weight in yourvehicle as extra weight wastes fuel.
•Do not add unnecessary accessoriesto the exterior of your vehicle, forexample running boards. If you use aroof rack, remember to fold it down orremove it when not in use.
•Do not shift into neutral when you arebraking or when your vehicle is slowingdown.
•Shut all windows when driving at highspeeds.
•Switch off all electric systems whennot in use, for example air conditioning.Make sure that you unplug anyaccessories from the auxiliary powerpoints when not in use.
DRIVING THROUGH SHALLOW
WATER
WARNING: Do not attempt tocross a deep or flowing body of water.Failure to follow this instruction couldresult in the loss of control of yourvehicle, personal injury or death.
Note:Driving through standing water cancause vehicle damage.
Note:Engine damage can occur if waterenters the air filter.
Before driving through standing water,check the depth. Never drive through waterthat is higher than the bottom of the frontrocker area of your vehicle.
When driving through standing water, drivevery slowly and do not stop your vehicle.Your brake performance and traction couldbe limited. After driving through water andas soon as it is safe to do so:
•Lightly press the brake pedal to dry thebrakes and to check that they work.
•Turn the steering wheel to check thatthe steering power assist works.
Check the function of the following:
•Horn
•Exterior lights
FLOOR MATS
WARNING: Use a floor matdesigned to fit the footwell of yourvehicle that does not obstruct the pedalarea. Failure to follow this instructioncould result in the loss of control of yourvehicle, personal injury or death.
WARNING: Pedals that cannotmove freely can cause loss of vehiclecontrol and increase the risk of seriouspersonal injury.
231
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingDriving Hints E266447

JUMP STARTING THE VEHICLE
WARNING: Batteries normallyproduce explosive gases which cancause personal injury. Therefore, do notallow flames, sparks or lightedsubstances to come near the battery.When working near the battery, alwaysshield your face and protect your eyes.Always provide correct ventilation.
WARNING: Keep batteries out ofreach of children. Batteries containsulfuric acid. Avoid contact with skin,eyes or clothing. Shield your eyes whenworking near the battery to protectagainst possible splashing of acidsolution. In case of acid contact with skinor eyes, flush immediately with water fora minimum of 15 minutes and get promptmedical attention. If acid is swallowed,call a physician immediately.
WARNING: Use only adequatelysized cables with insulated clamps.
Note:Do not attempt to push-start yourautomatic transmission vehicle. Attemptingto push-start a vehicle with an automatictransmission may cause transmissiondamage.
Note:Do not disconnect the battery of thedisabled vehicle as this could damage thevehicle electrical system.
Preparing Your Vehicle
Note:Use only a 12-volt supply to start yourvehicle.
Park the booster vehicle close to the hoodof the disabled vehicle, making sure thetwo vehicles do not touch.
Removing the Battery Shield
The battery is on the passenger sideunderneath the battery shield.
1.Rotate and release three fasteners byhand from the battery shield.
2.Remove the battery shield from thevehicle.
Connecting the Jumper Cables
WARNING: Do not connect the endof the second cable to the negative (-)terminal of the battery to be jumped. Aspark may cause an explosion of thegases that surround the battery.
WARNING: Do not use fuel lines,engine valve covers, windshield wiperarms, the intake manifold, or hood latchas ground points.
Note:If you are using a jump pack orbooster box, follow that manufacturer'sinstructions.
Note:In the illustration, the vehicle shownis being jumped.
235
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingRoadside EmergenciesE281082

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

1.Remove the two sensor wire harnessretainers from the air box studs locatedon the front side of the air box.
2.Remove the four studs that fasten theupper air box housing to the lower airbox housing.
3.Separate the upper air box housingfrom the lower air box housing.
4.Loosen the air filter clamp enough toallow the filter to slip off the housingeasily.
5.Remove the air filter from the air filterhousing.
6.Wipe the newly-exposed air filter outlettube clamping area clean to removeany dirt or debris.
7.Install a new air filter, taking care notto damage the air filter element. Alignthe tab on the closed end of the filterwith the notch in the air filter housing.
8.Tighten the air filter clamp down.
Note:Do not overtighten the clamp or studswhen reinstalling.
9.Reinstall the upper air box piece to thelower air box piece. Tighten the 4 studsdown.
10.Reinstall the two sensor wire harnessretainers to the mating air box studs.
ENGINE COOLANT CHECK
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.
WARNING: To reduce the risk ofpersonal injury, make sure the engine iscool before unscrewing the coolantpressure relief cap. The cooling systemis under pressure. Steam and hot liquidcan come out forcefully when you loosenthe cap slightly.
When the engine is cold, check theconcentration and level of the coolant atthe intervals listed in the scheduledmaintenance information. See ScheduledMaintenance (page 449).
Note:Make sure that the coolant level isbetween the MIN and the MAX marks onthe coolant reservoir.
Note: Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.
Maintain coolant concentration within48% to 50%, which equates to a freezepoint between -29°F (-34°C) and -35°F(-37°C). Coolant concentration should bechecked using a refractometer. We do notrecommend the use of hydrometers orcoolant test strips for measuring coolantconcentration.
Adding Coolant
WARNING: Do not add coolantfurther than the MAX mark.
WARNING: Do not add coolantwhen the vehicle is on or the coolingsystem is hot. Failure to follow thisinstruction could result in personal injury.
265
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenance

1.Park your vehicle on a level surface.
2.Look at the brake fluid reservoir to seewhere the brake fluid level is relativeto the MIN and the MAX marks on thereservoir.
Note:If the brake fluid level is between theMIN and the MAX marks on the reservoir, itis acceptable.
Note:If the brake fluid level is below theMIN mark or above the MAX mark, haveyour vehicle checked as soon as possible.
Note:To avoid fluid contamination, thereservoir cap must remain in place and fullytight, unless you are adding fluid.
Only use fluid that meets ourspecifications. See Capacities andSpecifications (page 337).
Brake Fluid Service Interval
Brake fluid absorbs water over time whichdegrades the effectiveness of the brakefluid. Change the brake fluid at thespecified intervals to prevent degradedbraking performance.
For detailed interval information, seeScheduled Maintenance in your Owner'sManual or your local maintenance guide.
CLUTCH FLUID CHECK -
MANUAL TRANSMISSION
The clutch and brake systems share thesame fluid reservoir. See Brake FluidCheck (page 270).
POWER STEERING FLUID
CHECK
Your vehicle is equipped with an electricpower steering (EPS) system. There is nofluid reservoir to check or fill.
CHANGING THE 12V BATTERY
WARNING: Batteries normallyproduce explosive gases which cancause personal injury. Therefore, do notallow flames, sparks or lightedsubstances to come near the battery.When working near the battery, alwaysshield your face and protect your eyes.Always provide correct ventilation.
WARNING: When lifting aplastic-cased battery, excessive pressureon the end walls could cause acid to flowthrough the vent caps, resulting inpersonal injury and damage to thevehicle or battery. Lift the battery with abattery carrier or with your hands onopposite corners.
271
2023 Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-11-2022, enUSA, Edition date: 202209, First-PrintingMaintenanceE170684