check engine FORD FOCUS 2018 User Guide

Seatbelt Reminder
ActionMessage
The system has detected a fault that requires service. Haveyour vehicle checked as soon as possible.Service Beltminder
Starting System
ActionMessage
Displays when you start your vehicle as a reminder to fullypress the brake pedal.Press Brake to Start
Displays if your vehicle fails to start.Cranking Time ExceededSee Starting and Stopping the Engine (page 119).
Steering System
ActionMessage
The system has detected a fault that requires service.Steering Loss StopSafelyHave your vehicle immediately checked.
You will continue to have full steering but will need to exertgreater force on the steering wheel. Have your vehiclechecked as soon as possible.
Steering Assist FaultService required
The system has detected a fault that requires service.Steering Fault ServiceNowHave your vehicle immediately checked.
Tire Pressure Monitoring System
ActionMessage
Displays if the tire pressure in one or more tires is below thecorrect pressure.Low Tire Pressure
See Tire Pressure Monitoring System (page 260).
The system has detected a fault that requires service. Haveyour vehicle checked as soon as possible.Tire Pressure MonitorFault
Displays if the system detects a fault with a tire pressuresensor or the spare tire is in use.Tire Pressure SensorFault
1022018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingInformation Displays

ActionMessage
If the warning message remains on after you have checkedthe tire pressures, the system has detected a fault thatrequires service. Have your vehicle checked as soon aspossible.
Traction Control
ActionMessage
Displays when you switch the system off.Traction control OffSee Using Traction Control (page 150).
Transmission
ActionMessage
Have your vehicle checked as soon as possible.Transmission FaultService Now
The transmission is overheating and needs to cool. Stop yourvehicle as soon as it is safe to do so, switch the engine offand allow the transmission to cool.
Transmission Over-heating Stop Safely
Displays as a reminder to shift into park (P).Transmission Not in ParkSelect P
Press the brake pedal to unlock the transmission.Press Brake to UnlockGearshift Lever
Displays when the transmission selector lever unlocks.Gearshift Lever Unlocked
1032018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingInformation Displays

Once your vehicle starts, it remains runninguntil you press the push button ignitionswitch, even if your vehicle does not detecta valid passive key. If you open and closea door while your vehicle is running, thesystem searches for a valid passive key.
You cannot start your vehicle if you openthe driver door and the system does notdetect a valid passive key.
STARTING A GASOLINE
ENGINE
When you start the engine, the idle speedincreases. This helps to warm up theengine. If the engine idle speed does notslow down automatically, have yourvehicle checked by an authorized dealer.
Note:You can crank the engine for a totalof 60 seconds without the engine startingbefore the starting system temporarilydisables. The 60 seconds does not have tobe all at once. For example, if you crank theengine three times for 20 seconds eachtime, without the engine starting, youreached the 60-second time limit. Amessage appears in the information displayalerting you that you exceeded the crankingtime. You cannot attempt to start the enginefor at least 15 minutes. After 15 minutes, youare limited to a 15-second engine crankingtime. You need to wait 60 minutes beforeyou can crank the engine for 60 secondsagain.
Before starting your vehicle, check thefollowing:
•Make sure all occupants have fastenedtheir safety belts.
•Make sure the headlamps andelectrical accessories are off.
•Make sure the parking brake is on.
•Make sure the transmission is in park(P).
•Switch the ignition key to position II. Ifyour vehicle is equipped with a keylessignition, see the following instructions.
Vehicles with an Ignition Key
Note:Do not touch the accelerator pedal.
1.Fully press the brake pedal. If yourvehicle is equipped with a manualtransmission, fully press the clutchpedal.
2.Turn the key to position III to start theengine.
Note:The engine may continue crankingfor up to 15 seconds or until it starts.
Note:If you cannot start the engine on thefirst try, wait for a short period and try again.
Vehicles with Keyless Start
Note:Do not touch the accelerator pedal.
Note:You must have your intelligent accesskey in your vehicle in order to shift thetransmission out of park (P).
1.Fully depress the brake pedal.
2.Press the push button ignition switch.
The system does not function if:
•The passive key frequencies arejammed.
•The key battery has no charge.
If you are unable to start your vehicle, dothe following:
1222018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingStarting and Stopping the Engine

Guarding Against Exhaust Fumes
WARNING
If you smell exhaust fumes insideyour vehicle, have your vehiclechecked by your authorized dealerimmediately. Do not drive your vehicle ifyou smell exhaust fumes. Carbonmonoxide is present in exhaust fumes.Take precautions to avoid its dangerouseffects.
Important Ventilating Information
If you stop your vehicle and then leave theengine idling for long periods, werecommend that you do one of thefollowing:
•Open the windows at least 1.0 in(2.5 cm).
•Set your climate control to outside air.
ENGINE BLOCK HEATER (If
Equipped)
WARNINGS
Failure to follow engine block heaterinstructions could result in propertydamage or serious personal injury.
Do not use your heater withungrounded electrical systems ortwo-pronged adapters. There is a riskof electrical shock.
Do not fully close the hood, or allowit to drop under its own weight whenusing the engine block heater. Thiscould damage the power cable and maycause an electrical short resulting in fire,injury and property damage.
Note:The heater is most effective whenoutdoor temperatures are below 0°F(-18°C).
The heater acts as a starting aid bywarming the engine coolant. This allowsthe climate control system to respondquickly. The equipment includes a heaterelement (installed in the engine block) anda wire harness. You can connect thesystem to a grounded 120-volt ACelectrical source.
We recommend that you do the followingfor a safe and correct operation:
•Use a 16-gauge outdoor extension cordthat is product certified byUnderwriter’s Laboratory (UL) orCanadian Standards Association(CSA). This extension cord must besuitable for use outdoors, in coldtemperatures, and be clearly markedSuitable for Use with OutdoorAppliances. Do not use an indoorextension cord outdoors. This couldresult in an electric shock or become afire hazard.
•Use as short an extension cord aspossible.
•Do not use multiple extension cords.
•Make sure that when in operation, theextension cord plug and heater cordplug connections are free and clear ofwater. This could cause an electricshock or fire.
•Make sure your vehicle is parked in aclean area, clear of combustibles.
•Make sure the heater, heater cord andextension cord are firmly connected.
•Check for heat anywhere in theelectrical hookup once the system hasbeen operating for approximately 30minutes.
1252018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingStarting and Stopping the Engine

•Make sure the system is unplugged andproperly stowed before starting anddriving your vehicle. Make sure theprotective cover seals the prongs of theblock heater cord plug when not in use.
•Make sure the heater system ischecked for proper operation beforewinter.
Using the Engine Block Heater
Make sure the receptacle terminals areclean and dry prior to use. Clean them witha dry cloth if necessary.
The heater uses 0.4 to 1.0 kilowatt-hoursof energy per hour of use. The system doesnot have a thermostat. It achievesmaximum temperature afterapproximately three hours of operation.Using the heater longer than three hoursdoes not improve system performance andunnecessarily uses electricity.
1262018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingStarting and Stopping the Engine

5.Operate the fuel pump nozzle withinthe area shown.
6.When you finish refueling slightly raisethe fuel pump nozzle and slowlyremove it.
7.Fully close the fuel filler door.
Do not attempt to start the engine if youhave filled the fuel tank with incorrect fuel.Incorrect fuel use could cause damage notcovered by the vehicle Warranty. Have yourvehicle immediately checked.
Refueling System Warning (If Equipped)
If the fuel tank filler valve does not fullyclose, a message may appear in theinformation display.
Message
Check Fuel Fill Inlet
If the message appears, do the following:
1.Stop your vehicle as soon as it is safeto do so and switch the engine off.
2.Shift into park (P) or neutral (N).
3.Apply the parking brake.
4.Fully open the fuel filler door.
5.Check the fuel tank filler valve for anydebris that may be restricting itsmovement.
6.Remove any debris from the fuel tankfiller valve.
7.Fully insert a fuel pump nozzle or thefuel filler funnel provided with yourvehicle into the fuel filler pipe. SeeFuel Filler Funnel Location (page130). This action should dislodge anydebris that may be preventing the fueltank filler valve from fully closing.
8.Remove the fuel pump nozzle or fuelfiller funnel from the fuel filler pipe.
9.Fully close the fuel filler door.
If this action corrects the problem themessage may not immediately reset. If themessage remains and a warning lampilluminates, have your vehicle checked assoon as possible.
FUEL CONSUMPTION
The advertised capacity is the maximumamount of fuel that you can add to the fueltank after running out of fuel. Included inthe advertised capacity is an emptyreserve. The empty reserve is anunspecified amount of fuel that remainsin the fuel tank when the fuel gaugeindicates empty.
Note:The amount of fuel in the emptyreserve varies and should not be relied uponto increase driving range.
Fuel Economy
Your vehicle calculates fuel economyfigures through the trip computer averagefuel function. See Trip Computer (page95).
1342018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingFuel and RefuelingE206912AB E119081

EMISSION LAW
WARNING
Do not remove or alter the originalequipment floor covering orinsulation between it and the metalfloor of the vehicle. The floor covering andinsulation protect occupants of the vehiclefrom the engine and exhaust system heatand noise. On vehicles with no originalequipment floor covering insulation, do notcarry passengers in a manner that permitsprolonged skin contact with the metalfloor. Failure to follow these instructionsmay result in fire or personal injury.
U.S. federal laws and certain state lawsprohibit removing or rendering inoperativeemission control system components.Similar federal or provincial laws mayapply in Canada. We do not approve of anyvehicle modification without firstdetermining applicable laws.
Tampering with emissionscontrol systems includingrelated sensors or the DieselExhaust Fluid system can result in reducedengine power and the illumination of theservice engine soon light.
Tampering With a Noise ControlSystem
Federal laws prohibit the following acts:
•Removal or rendering inoperative byany person other than for purposes ofmaintenance.
•Repair or replacement of any device orelement of the design incorporated intoa new vehicle for the purpose of noisecontrol prior to its sale or delivery tothe ultimate purchaser or while it is inuse.
•The use of the vehicle after any personremoves or renders inoperative anydevice or element of the design.
The U.S. Environmental Protection Agencymay presume to constitute tampering asfollows:
•Removal of hood blanket, fender apronabsorbers, fender apron barriers,underbody noise shields or acousticallyabsorptive material.
•Tampering or rendering inoperative theengine speed governor, to allow enginespeed to exceed manufacturerspecifications.
If the engine does not start, runs rough,experiences a decrease in engineperformance, experiences excess fuelconsumption or produces excessiveexhaust smoke, check for the following:
•A plugged or disconnected air inletsystem hose.
•A plugged engine air filter element.
•Water in the fuel filter and waterseparator.
•A clogged fuel filter.
•Contaminated fuel.
•Air in the fuel system, due to looseconnections.
•An open or pinched sensor hose.
•Incorrect engine oil level.
1362018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingEngine Emission Control

•Incorrect fuel for climatic conditions.
•Incorrect engine oil viscosity forclimactic conditions.
Note:Some vehicles have a lifetime fuelfilter that is integrated with the fuel tank.Regular maintenance or replacement is notneeded.
Note:If these checks do not help youcorrect the concern, have your vehiclechecked as soon as possible.
Noise Emissions Warranty,Prohibited Tampering Acts andMaintenance
On January 1, 1978, Federal regulationbecame effective governing the noiseemission on trucks over 10,000 lb(4,536 kg) Gross Vehicle Weight Rating(GVWR). The preceding statementsconcerning prohibited tampering acts andmaintenance, and the noise warrantyfound in the Warranty Guide, areapplicable to complete chassis cabs over10,000 lb (4,536 kg) GVWR.
CATALYTIC CONVERTER
WARNINGS
Do not park, idle or drive your vehicleon dry grass or other dry groundcover. The emission system heats upthe engine compartment and exhaustsystem, creating the risk of fire.
The normal operating temperatureof the exhaust system is very high.Never work around or attempt torepair any part of the exhaust system untilit has cooled. Use special care whenworking around the catalytic converter.The catalytic converter heats up to a veryhigh temperature after only a short periodof engine operation and stays hot after theengine is switched off.
WARNINGS
Exhaust leaks may result in entry ofharmful and potentially lethal fumesinto the passenger compartment. Ifyou smell exhaust fumes inside yourvehicle, have your vehicle inspectedimmediately. Do not drive if you smellexhaust 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 190).
•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.
1372018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingEngine Emission Control

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.
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.
1392018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingEngine Emission Control

GENERAL INFORMATION
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when driving from a car wash orstanding water to dry the brakes.
Note: Occasional brake noise is normal. Ifa metal-to-metal, continuous grinding orcontinuous squeal sound is present, thebrake linings may be worn-out. Have thesystem checked by an authorized dealer. Ifyour vehicle has continuous vibration orshudder in the steering wheel while braking,have it checked by an authorized dealer.
Note:Brake dust may accumulate on thewheels, even under normal drivingconditions. Some dust is inevitable as thebrakes wear and does not contribute tobrake noise. See Cleaning the Wheels(page 241).
Note:Depending on applicable laws andregulations in the country for which yourvehicle was originally built, the brake lampscould flash during heavy braking. Followingthis, the hazard lights could also flash whenyour vehicle comes to a stop.
Brake Over Accelerator
In the event that the accelerator pedalbecomes stuck or entrapped, apply steadyand firm pressure to the brake pedal toslow your vehicle and reduce enginepower. If you experience this condition,apply the brakes and bring your vehicle toa safe stop. Move the transmission to park(P), switch the engine off and apply theparking brake. Inspect the acceleratorpedal for any interference. If none arefound and the condition persists, have yourvehicle towed to the nearest authorizeddealer.
Brake Assist
Brake assist detects when you rapidlybrake by measuring the rate at which youpress the brake pedal. It providesmaximum braking efficiency as long as youpress the pedal, and can reduce stoppingdistances in critical situations
Anti-Lock Brake System
This system helps you maintain steeringcontrol during emergency stops by keepingthe brakes from locking.
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.
It also momentarily illuminates 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 checkedby an authorized dealer.
It illuminates when you engagethe parking brake and theignition is on.
If it illuminates when your vehicle ismoving, make sure the parking brake isdisengaged. If the parking brake isdisengaged, this indicates low brake fluidlevel or a brake system fault. Have yourvehicle immediately checked.
It also momentarily illuminates 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 checkedby an authorized dealer.
1472018 Focus (CDH) Canada/United States of America, JM5J 19A321 AA enUSA, Edition date: 201706, Second PrintingBrakes E138644