page 39 FORD FOCUS 2018 Repair Manual

Brake-Shift Interlock
WARNINGS
Do not drive your vehicle until youverify that the brake lamps areworking.
When doing this procedure, you willbe taking your vehicle out of park (P)which means your vehicle can rollfreely. To avoid unwanted vehiclemovement, always fully set the parkingbrake prior to doing this procedure. Usewheel chocks if appropriate.
If you fully release the parking brakeand the brake warning lamp remainsilluminated, the brakes may not beworking properly. See your authorizeddealer.
Note:For some markets this feature will bedisabled.
Your vehicle is equipped with a brake-shiftinterlock feature that prevents moving thegearshift lever from park (P) when theignition is in the on position and the brakepedal is not pressed.
If you cannot move the gearshift lever outof park (P) position with the ignition in theon position and the brake pedal pressed,a malfunction may have occurred. It ispossible that a fuse has blown or yourvehicle’s brake lamps are not operatingproperly. See Fuse Specification Chart(page 200).
If the fuse is not blown and the brakelamps are working properly, the followingprocedure will allow you to move thegearshift lever from park (P):
1.Remove the side panel on the right sideof the gearshift lever.
2.Locate the access hole.
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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.
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PRINCIPLE OF OPERATION
The traction control system helps avoiddrive wheel spin and loss of traction.
If your vehicle begins to slide, the systemapplies the brakes to individual wheelsand, when needed, reduces engine powerat the same time. If the wheels spin whenaccelerating on slippery or loose surfaces,the system reduces engine power in orderto increase traction.
USING TRACTION CONTROL
WARNING
The stability and traction controllight illuminates steadily if thesystem detects a failure. Make sureyou did not manually disable the tractioncontrol system using the informationdisplay controls or the switch. If thestability control and traction control lightis still illuminating steadily, have thesystem serviced by an authorized dealerimmediately. Operating your vehicle withthe traction control disabled could lead toan increased risk of loss of vehicle control,vehicle rollover, personal injury and death.
The system automatically turns on eachtime you switch the ignition on.
If your vehicle is stuck in mud or snow,switching traction control off may bebeneficial as this allows the wheels to spin.
Note:When you switch traction control off,stability control remains fully active.
Switching the System Off
When you switch the system off or on, amessage appears in the informationdisplay showing system status.
You can switch the system off by eitherusing the information display controls orthe switch.
Using the Information DisplayControls
You can switch this feature off or on in theinformation display. See GeneralInformation (page 92).
Using a Switch (If Equipped)
Use the traction control switch on theinstrument panel to switch the system offor on.
System Indicator Lights andMessages
The stability and traction controllight:
•Temporarily illuminates on enginestart-up.
•Flashes when a driving conditionactivates either of the systems.
•Illuminates if a problem occurs in eitherof the systems.
The stability and traction controloff light temporarily illuminateson engine start-up and stays onwhen you switch the traction controlsystem off.
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PRINCIPLE OF OPERATION
WARNINGS
Vehicle modifications involvingbraking system, aftermarket roofracks, suspension, steering system,tire construction and wheel and tire sizemay change the handling characteristicsof your vehicle and may adversely affectthe performance of the electronic stabilitycontrol system. In addition, installing anystereo loudspeakers may interfere withand adversely affect the electronic stabilitycontrol system. Install any aftermarketstereo loudspeaker as far as possible fromthe front center console, the tunnel, andthe front seats in order to minimize the riskof interfering with the electronic stabilitycontrol sensors. Reducing theeffectiveness of the electronic stabilitycontrol system could lead to an increasedrisk of loss of vehicle control, vehiclerollover, personal injury and death.
Remember that even advancedtechnology cannot defy the laws ofphysics. It’s always possible to losecontrol of a vehicle due to inappropriatedriver input for the conditions. Aggressivedriving on any road condition can causeyou to lose control of your vehicleincreasing the risk of personal injury orproperty damage. Activation of theelectronic stability control system is anindication that at least some of the tireshave exceeded their ability to grip the road;this could reduce the operator’s ability tocontrol the vehicle potentially resulting ina loss of vehicle control, vehicle rollover,personal injury and death. If your electronicstability control system activates, SLOWDOWN.
The system automatically turns on eachtime you switch the ignition on.
If a fault occurs in either the stabilitycontrol or the traction control system, youmay experience the following conditions:
•The stability and traction control lightilluminates steadily.
•The stability control and tractioncontrol systems do not enhance yourvehicle's ability to maintain traction ofthe wheels.
If a driving condition activates either thestability control or the traction controlsystem you may experience the followingconditions:
•The stability and traction control lightflashes.
•Your vehicle slows down.
•Reduced engine power.
•A vibration in the brake pedal.
•The brake pedal is stiffer than usual.
•If the driving condition is severe andyour foot is not on the brake, the brakepedal may move as the system applieshigher brake force.
The stability control system has severalfeatures built into it to help you maintaincontrol of your vehicle:
Electronic Stability Control
The system enhances your vehicle’s abilityto prevent skids or lateral slides byapplying brakes to one or more of thewheels individually and, if necessary,reducing engine power.
Traction Control
The system enhances your vehicle’s abilityto maintain traction of the wheels bydetecting and controlling wheel spin. SeeUsing Traction Control (page 150).
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Vehicle without stability controlskidding off its intended route.A
Vehicle with stability controlmaintaining control on a slipperysurface.
B
USING STABILITY CONTROL
The system automatically turns on eachtime you switch the ignition on.
You cannot switch the stability controlsystem off, but when you shift into reverse(R), the system deactivates.
You can switch the traction control systemoff or on. See Using Traction Control(page 150).
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PRINCIPLE OF OPERATION
WARNINGS
To help avoid personal injury, pleaseread and understand the limitationsof the system as contained in thissection. Sensing is only an aid for some(generally large and fixed) objects whenmoving on a flat surface at parking speeds.Certain objects with surfaces that absorbultrasonic waves, surrounding vehicle'sparking aid systems, traffic controlsystems, fluorescent lamps, inclementweather, air brakes, and external motorsand fans may also affect the function ofthe sensing system; this may includereduced performance or a false activation.
To help avoid personal injury, alwaysuse caution when in reverse (R) andwhen using the sensing system.
This system is not designed toprevent contact with small or movingobjects. The system is designed toprovide a warning to assist the driver indetecting large stationary objects to avoiddamaging your vehicle. The system maynot detect smaller objects, particularlythose close to the ground.
Certain add-on devices such as largetrailer hitches, bike or surfboard racksand any device that may block thenormal detection zone of the system, maycreate false beeps.
Note:Keep the sensors, located on thebumper or fascia, free from snow, ice andlarge accumulations of dirt. If the sensorsare covered, the system’s accuracy can beaffected. Do not clean the sensors withsharp objects.
Note:If your vehicle sustains damage tothe bumper or fascia, leaving it misalignedor bent, the sensing zone may be alteredcausing inaccurate measurement ofobstacles or false alarms.
Note:The sensing system cannot be turnedoff when a MyKey is present. See Principleof Operation (page 55).
Note:If you attach certain add-on devicessuch as a trailer or bike rack, the rear sensingsystem may detect that add-on device andtherefore provide warnings. It is suggestedthat you disable the rear sensing systemwhen you attach an add-on device to yourvehicle to prevent these warnings.
The sensing system warns the driver ofobstacles within a certain range of yourvehicle. The system turns on automaticallywhenever you switch the ignition on.
You can turn the system on oroff by pressing the parking aidbutton. If your vehicle does nothave a parking aid button, the system canbe switched off through the informationdisplay menu or from the pop-up messagethat appears once you shift thetransmission into reverse (R). See GeneralInformation (page 92).
If a fault is present in the system, a warningmessage appears in the informationdisplay. See Information Messages(page 96).
REAR PARKING AID (If Equipped)
The rear parking aid sensors automaticallyturn on when you shift into reverse (R).
As your vehicle moves closer to theobstacle, the rate of the audible warningincreases. When the obstacle is less than12 in (30 cm) away, the warning soundscontinuously. If the system detects anobject farther than 12 in (30 cm) from thecorners of the bumper, the tone sounds foronly three seconds. If the system detectsan approaching object the warning soundsagain.
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The system uses three types of guides tohelp you see what is behind your vehicle:
•Active guidelines: Show the intendedpath of your vehicle when reversing.
•Fixed guidelines: Show the actual pathyour vehicle is moving in while reversingin a straight line. This can be helpfulwhen backing into a parking space oraligning your vehicle with anotherobject behind you.
•Centerline: Helps align the center ofyour vehicle with an object (forexample, a trailer).
Note:If the image comes on while thetransmission is not in reverse (R), have thesystem checked as soon as possible.
Note:When towing, the camera only seeswhat is being towed behind your vehicle.This might not provide adequate coverageas it usually provides in normal operationand some objects might not be seen. Insome vehicles, the guidelines may disappearonce the trailer tow connector is engaged.
Note:The camera may not operatecorrectly under the following conditions:
•Nighttime or dark areas if one or bothreverse lamps are not operating.
•The camera's view is obstructed bymud, water or debris. Clean the lenswith a soft, lint-free cloth andnon-abrasive cleaner.
•The rear of your vehicle is hit ordamaged, causing the camera tobecome misaligned.
Access the rear view camera systemsettings through the information display.See General Information (page 92).
After changing a system setting, thedisplay screen shows a preview of theselected features.
Camera Guidelines
Note:Dynamic guidelines are only availablewhen the transmission is in reverse (R).
Active guidelinesA
CenterlineB
Fixed guideline: Green zoneC
Fixed guideline: Yellow zoneD
Fixed guideline: Red zoneE
Rear bumperF
Active guidelines are only shown with fixedguidelines. To use active guidelines, turnthe steering wheel to point the guidelinestoward an intended path. If the steeringwheel position is changed while reversing,your vehicle might deviate from the originalintended path.
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DRIVER ALERT
Principle of Operation
WARNINGS
The system is designed to aid thedriver. It is not intended to replaceyour attention and judgment. You arestill responsible to drive with due care andattention.
At all times, you are responsible forcontrolling your vehicle, supervisingthe system and intervening, ifrequired. Failure to take care may result inthe loss of control of your vehicle, seriouspersonal injury or death.
The system may not function if thesensor is blocked.
Take regular rest breaks if you feeltired. Do not wait for the system towarn you.
Certain driving styles may result inthe system warning you even if youare not feeling tired.
In cold and severe weatherconditions the system may notfunction. Rain, snow and spray canall limit sensor performance.
The system will not operate if thesensor cannot track the road lanemarkings.
If damage occurs in the immediatearea surrounding the sensor, haveyour vehicle checked as soon aspossible.
The system may not correctlyoperate if your vehicle is fitted witha suspension kit not approved by us.
Note:Keep the windshield free fromobstructions for example bird droppings,insects and snow or ice.
Note:The system assists you when drivingon fast main roads and freeways.
Note:The system calculates an alertnesslevel at vehicle speeds above approximately40 mph (65 km/h).
The system automatically monitors yourdriving behavior.
The system is designed to alert you if itdetects that you are becoming drowsy orif your driving deteriorates.
Using Driver Alert
Switching the System On and Off
Switch the system on using the informationdisplay. See Information Displays (page92).
Note:The system remains on or offdepending on how it was last set.
The system calculates your alertness levelbased upon your driving behavior in relationto the lane markings and other factors.
System Warnings
Note:The system does not warn you if thevehicle speed falls below approximately40 mph (65 km/h).
The warning system has two stages:
1.A temporary warning is issued to adviseyou to take a rest. This message onlyappears for a short time.
2.If you do not rest and the systemcontinues to detect that your drivingdeteriorates, it issues a further warning.This remains in the information displayuntil you cancel it. See InformationMessages (page 96).
Press OK on the steering wheel control toremove the warning.
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System Display
When active the system runs automaticallyin the background and only issue warningsif required. You can view the status at anytime using the information display. SeeGeneral Information (page 92).
The alertness level is shown by six stepsas a colored bar.
Alertness level is fine, no rest required.
Alertness level is critical, indicating thatyou should take a rest as soon as it is safeto do so.
The status bar travels from left to right asthe calculated alertness level decreases.As the rest icon is approached, the colorturns from green to yellow and then finallyred when a rest break must be taken.
•Green: No rest required.
•Yellow: First (temporary) warning.
•Red: Second warning.
Your alertness level will be shown in grayif:
•The sensor cannot track the road lanemarkings.
•The vehicle speed falls belowapproximately 40 mph (65 km/h).
Resetting the System
You can reset the system by:
•Switching the ignition off and on.
•Stopping your vehicle and then openingand closing the driver door.
LANE KEEPING SYSTEM (If
Equipped)
WARNINGS
The system is designed to aid thedriver. It is not intended to replaceyour attention and judgment. You arestill responsible to drive with due care andattention.
Always drive with due care andattention when using and operatingthe controls and features on yourvehicle.
At all times, you are responsible forcontrolling your vehicle, supervisingthe system and intervening, ifrequired. Failure to take care may result inthe loss of control of your vehicle, seriouspersonal injury or death.
In cold and severe weatherconditions the system may notfunction. Rain, snow and spray canall limit sensor performance.
The system will not operate if thesensor cannot track the road lanemarkings.
The sensor may incorrectly track lanemarkings as other structures orobjects. This can result in a false ormissed warning.
Large contrasts in outside lightingcan limit sensor performance.
The system may not operateproperly if the sensor is blocked.Keep the windshield free fromobstruction.
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Using the Blind Spot InformationSystem
Vehicles with Automatic Transmission
The system turns on when all of thefollowing occur:
•You start your vehicle.
•You shift into drive (D).
•The vehicle speed is greater than6 mph (10 km/h).
Note:The system does not operate in park(P) or reverse (R).
Vehicles with Manual Transmission
The system turns on when all of thefollowing occur:
•You start your vehicle.
•The vehicle speed is greater than6 mph (10 km/h).
Note:The system does not operate inreverse (R).
System Lights and Messages
When the system detects a vehicle, analert indicator illuminates in the exteriormirror on the side the approaching vehicleis coming from. If you turn the directionindicator on for that side of your vehicle,the alert indicator flashes.
Note:The system may not alert you if avehicle quickly passes through the detectionzone.
Blocked Sensors
The sensors are behind the rear bumperon both sides of your vehicle.
Note:Keep the sensors free from snow, iceand large accumulations of dirt.
Note:Do not cover the sensors with bumperstickers, repair compound or other objects.
Note:Blocked sensors could affect systemperformance.
If the sensors are blocked, a message mayappear in the information display. SeeInformation Messages (page 96). Thealert indicators remain illuminated but thesystem does not alert you.
System Errors
If the system detects a fault, a warninglamp illuminates and a message displays.See Information Messages (page 96).
Switching the System Off and On
You can switch the system off using theinformation display. See GeneralInformation (page 92). When you switchthe system off, a warning lamp illuminatesand a message displays. When you switchthe system on or off, the alert indicatorsflash twice.
Note:The system remembers the lastsetting when you start your vehicle.
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