tow LINCOLN MKZ 2018 Service Manual

Why is the feature not available (line markings are gray) when I can see the lane markings on the road?
Faint lane markings (partial yellow lane markings on concrete roads)
Lane width too narrow or too wide
Camera not calibrated after a windshield replacement
Driving on tight roads or on uneven roads
Why does the vehicle not come back toward the middle of the lane, as expected, in the Aid or Aid + Alert mode?
High cross winds are present
There is a large road crown
Rough roads, grooves, shoulder drop-offs
Heavy uneven loading of the vehicle or improper tire inflation pressure
The tires have been changed, or the suspension has been modified
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Driving Aids

System Lights and Messages
When the system detects a vehicle, an alertindicator illuminates in the exterior mirror onthe side the approaching vehicle is comingfrom. If you turn the direction indicator on forthat side of your vehicle, the alert indicatorflashes.
Note:The system may not alert you if avehicle quickly passes through the detectionzone.
Blocked Sensors
The sensors are behind the rear bumper onboth 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 117). The alertindicators remain illuminated but the systemdoes not alert you.
System Errors
If the system detects a fault, a warning lampilluminates and a message displays. SeeInformation Messages (page 117).
Switching the System Off and On
You can switch the system off using theinformation display. See GeneralInformation (page 111). When you switch thesystem off, a warning lamp illuminates anda message displays. When you switch thesystem on or off, the alert indicators flashtwice.
Note:The system remembers the last settingwhen you start your vehicle.
Note:The system may not correctly operatewhen towing a trailer. For vehicles with atrailer tow module and tow bar approved byus, the system turns off when you attach atrailer. For vehicles with an aftermarkettrailer tow module or tow bar, werecommend that you switch the system offwhen you attach a trailer.
To permanently switch the system off,contact an authorized dealer.
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Driving AidsE142442 E205199

Note:The system turns on each time youswitch the ignition on and you shift intoreverse (R). If you temporarily switch thesystem off, it turns on the next time youswitch the ignition on.
Note:The system may not correctly operatewhen towing a trailer. For vehicles with atrailer tow module and tow bar approved byus, the system turns off when you attach atrailer. For vehicles with an aftermarkettrailer tow module or tow bar, werecommend that you switch the system offwhen you attach a trailer.
To permanently switch the system off,contact an authorized dealer.
STEERING
Electric Power Steering
WARNINGS
The electric power steering system hasdiagnostic checks that continuouslymonitor the system. If a fault is detected, amessage displays in the information display.Stop your vehicle as soon as it is safe to doso. Switch the ignition off. After at least 10seconds, switch the ignition on and watchthe information display for a steering systemwarning message. If a steering systemwarning message returns, have the systemchecked by an authorized dealer.
If the system detects an error, you maynot feel a difference in the steering,however a serious condition may exist.Obtain immediate service from an authorizeddealer, failure to do so may result in loss ofsteering control.
Your vehicle has an electric power steeringsystem. There is no fluid reservoir. Nomaintenance is required.
If your vehicle loses electrical power whileyou are driving, electric power steeringassistance is lost. The steering system stilloperates and you can steer your vehiclemanually. Manually steering your vehiclerequires more effort.
Extreme continuous steering may increasethe effort required for you to steer yourvehicle. This increased effort preventsoverheating and permanent damage to thesteering system. You do not lose the abilityto steer your vehicle manually. Typicalsteering and driving maneuvers allow thesystem to cool and return to normaloperation.
Steering Tips
If the steering wanders or pulls, check for:
•Correct tire pressures.
•Uneven tire wear.
•Loose or worn suspension components.
•Loose or worn steering components.
•Improper vehicle alignment.
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Driving Aids

Payload
Payload is the combined weight of cargoand passengers that your vehicle iscarrying. The maximum payload for yourvehicle appears on the Tire and Loadinglabel. The label is either on the B-pillaror the edge of the driver door. Vehiclesexported outside the US and Canadamay not have a tire and loading label.Look for “The combined weight ofoccupants and cargo should neverexceed XXX kg OR XXX lb” formaximum payload. The payload listedon the Tire and Loading Informationlabel is the maximum payload for yourvehicle as built by the assembly plant. If
you install any additional equipment onyour vehicle, you must determine thenew payload. Subtract the weight of theequipment from the payload listed onthe Tire and Loading label. When towing,trailer tongue weight or king pin weightis also part of payload.
WARNING
The appropriate loading capacityof your vehicle can be limitedeither by volume capacity (how muchspace is available) or by payloadcapacity (how much weight the vehicleshould carry). Once you have reachedthe maximum payload of your vehicle,do not add more cargo, even if there isspace available. Overloading orimproperly loading your vehicle cancontribute to loss of vehicle control andvehicle rollover.
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Load CarryingE143816PAYLOAD

GAWR (Gross Axle Weight Rating)
GAWR is the maximum allowable weightthat a single axle (front or rear) can carry.These numbers are on the SafetyCompliance Certification label. The labelis located on the door hinge pillar,door-latch post, or the door edge thatmeets the door-latch post, next to thedriver seating position.
The total load on each axle must neverexceed its Gross Axle Weight Rating.
GVWR (Gross Vehicle Weight Rating)
GVWR is the maximum allowable weightof the fully loaded vehicle. This includesall options, equipment, passengers andcargo. It appears on the SafetyCompliance Certification label. The labelis located on the door hinge pillar,door-latch post, or the door edge thatmeets the door-latch post, next to thedriver seating position.
The gross vehicle weight must neverexceed the Gross Vehicle Weight Rating.
Safety Compliance Certification LabelExample:
WARNING
Exceeding the Safety ComplianceCertification label vehicle weightrating limits could result in substandardvehicle handling or performance, engine,transmission and/or structural damage,serious damage to the vehicle, loss ofcontrol and personal injury.
Maximum Loaded Trailer Weight
Maximum loaded trailer weight is thehighest possible weight of a fully loadedtrailer the vehicle can tow. Consult anauthorized dealer (or the RV and TrailerTowing Guide available at an authorizeddealer) for more detailed information.
GCWR (Gross Combined WeightRating)
GCWR is the maximum allowable weightof the vehicle and the loaded trailer,including all cargo and passengers, thatthe vehicle can handle without riskingdamage. (Important: The towingvehicle’s braking system is rated foroperation at Gross Vehicle WeightRating, not at Gross Combined WeightRating.) Separate functional brakesshould be used for safe control of towedvehicles and for trailers where the GrossCombined Weight of the towing vehicleplus the trailer exceed the Gross VehicleWeight Rating of the towing vehicle.
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Load CarryingE198828

The gross combined weight must neverexceed the Gross Combined WeightRating.
Note: For trailer towing informationrefer to the RV and Trailer Towing Guideavailable at an authorized dealer.
WARNINGS
Do not exceed the GVWR or theGAWR specified on the SafetyCompliance Certification label.
Do not use replacement tires withlower load carrying capacities thanthe original tires because they maylower your vehicle’s GVWR and GAWRlimitations. Replacement tires with ahigher limit than the original tires do notincrease the GVWR and GAWR
limitations.
Exceeding any vehicle weightrating limitation could result inserious damage to your vehicle,personal injury or both.
Steps for determining the correct loadlimit:
1.Locate the statement "The combinedweight of occupants and cargoshould never exceed XXX kg or XXXlb." on your vehicle’s placard.
2.Determine the combined weight ofthe driver and passengers that willbe riding in your vehicle.
3.Subtract the combined weight of thedriver and passengers from XXX kgor XXX lb.
4. The resulting figure equals theavailable amount of cargo andluggage load capacity. For example,if the “XXX” amount equals 1,400 lb.and there will be five 150 lb.
passengers in your vehicle, theamount of available cargo andluggage load capacity is 650 lb.(1400-750 (5 x 150) = 650 lb.)
5.Determine the combined weight ofluggage and cargo being loaded onthe vehicle. That weight may notsafely exceed the available cargoand luggage load capacity calculatedin Step 4.
6.If your vehicle will be towing a trailer,load from your trailer will betransferred to your vehicle. Consultthis manual to determine how thisreduces the available cargo andluggage load capacity of yourvehicle.
Helpful examples for calculating theavailable amount of cargo andluggage load capacity
Suppose your vehicle has a 1400-pound(635-kilogram) cargo and luggagecapacity. You decide to go golfing. Isthere enough load capacity to carry you,four of your friends and all the golf bags?You and four friends average 220pounds (99 kilograms) each and the golfbags weigh approximately 30 pounds(13.5 kilograms) each. The calculationwould be: 1400 - (5 x 220) - (5 x 30) =
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Load Carrying

TOWING A TRAILER
WARNINGS
Do not exceed the GVWR or theGAWR specified on the certificationlabel.
Towing trailers beyond themaximum recommended grosstrailer weight exceeds the limit of yourvehicle and could result in enginedamage, transmission damage,structural damage, loss of vehiclecontrol, vehicle rollover and personalinjury.
Note:There may be electrical itemssuch as fuses or relays that can affect
trailer towing operation. See Fuses(page 282).
The load capacity of your vehicle isdesignated by weight not volume. Youmay not necessarily be able to use allavailable space when loading yourvehicle or trailer.
Towing a trailer places extra load on theengine, transmission, axle, brakes, tires,and suspension. Inspect thesecomponents before, during and aftertowing.
Load Placement
To help minimize how trailer movementaffects the vehicle when driving:
•Load the heaviest items closest tothe trailer floor.
•Load the heaviest items in the centerof the left and right side trailer tires.
•Load the heaviest items above thetrailer axles or just slightly forwardtoward the trailer tongue. Do notallow the final trailer tongue weightto go above or below 10-15% of theloaded trailer weight.
•Select a ball mount with the correctrise or drop. When both the loadedvehicle and trailer are connected, thetrailer frame should be level, orslightly angled down toward thevehicle, when viewed from the side.
When driving with a trailer or payload, aslight takeoff vibration or shudder maybe present due to the increased payloadweight. Additional information regardingproper trailer loading and setting yourvehicle up for towing is located in theLoad Carrying chapter. See Load Limit(page 251).
You can also find information in the RV& Trailer Towing Guide available at yourauthorized dealer, or online.
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Towing

RV & Trailer Towing Guide Online
http://www.fleet.ford.com/towing-guides/Website
RECOMMENDED TOWING
WEIGHTS
Note:Do not exceed the trailer weightfor your vehicle configuration listed inthe chart below.
Note:Be sure to take into considerationtrailer frontal area. Do not exceed 12feet2 (1.11 meters2).
Note:For high altitude operation,reduce the gross combined weight by2% per 1000 feet (300 meters) startingat the 1000 foot (300 meter) elevationpoint.
Note:Certain states require electrictrailer brakes for trailers over a specifiedweight. Be sure to check stateregulations for this specified weight. Themaximum trailer weights listed may belimited to this specified weight, as thevehicle’s electrical system may notinclude the wiring connector needed to
activate electric trailer brakes.
Your vehicle may tow a trailer providedthe maximum trailer weight is less thanor equal to the maximum trailer weightlisted for your vehicle configuration onthe following chart.
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Towing

Maximum trailer weight*Powertrain
1,000 lb (454 kg)2.0L GTDI
1,000 lb (454 kg)3.0L V6 GTDI
*Calculated with SAE J2807 method.
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Towing

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 laws fortowing a trailer.
•See the instructions included with towingaccessories for the proper installationand adjustment specifications.
•Service your vehicle more frequently ifyou tow a trailer. See your scheduledmaintenance information.
•If you use a rental trailer, follow theinstructions the rental agency gives you.
You can find information on loadspecification terms found on the tire labeland Safety Compliance label as well asinstructions on calculating your vehicle's loadin the Load Carrying chapter. See Load Limit(page 251).
Remember to account for the trailer tongueweight as part of your vehicle load whencalculating 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 the hookretainers 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 a trailer's hydraulicbrake system directly to your vehicle'sbrake system. Your vehicle may not haveenough braking power and your chances ofhaving a collision greatly increase.
Electric brakes and manual, automatic orsurge-type trailer brakes are safe if you installthem properly and adjust them to themanufacturer's specifications. The trailerbrakes 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.
Separate functioning brake systems arerequired for safe control of towed vehiclesand trailers weighing more than 1500pounds (680 kilograms) when load.
Trailer Lamps
WARNING
Never connect any trailer lamp wiringto the vehicle's tail lamp wiring; thismay damage the electrical system resultingin fire. Contact your authorized dealer assoon as possible for assistance in propertrailer tow wiring installation. Additionalelectrical equipment may be required.
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Towing