engine LINCOLN NAVIGATOR 2019 Repair Manual

Note:You can only switch the system on ifyou close the door and fasten your seatbelt.
Note:The system turns off every time youpower down your vehicle.
Note:The system remembers the last settingwhen you start your vehicle.
Note:When in reverse (R), Auto Hold doesnot function.
When the system is off, your vehicle behavesthe same as a vehicle without Auto Hold.
There is an indicator lamp in the instrumentcluster that has two modes, active andunavailable:
The auto hold active indicatorilluminates in the informationdisplay when the system holdsyour vehicle stationary. When in active mode,press the brake pedal and the Auto Holdbutton to switch the system off.
The auto hold unavailable indicatorilluminates in the informationdisplay when the system is on butunavailable to hold your vehicle (for example,during Active Park Assist, Stay in NeutralMode, or when you do not fasten yourseatbelt or close the door).
Note:Make sure you switch off Auto Holdor use the Stay in Neutral mode before youenter a car wash. See AutomaticTransmission (page 210).
Using Auto Hold
1. Use the brakes to bring your vehicle toa complete stop. The auto hold activeindicator illuminates in the informationdisplay.
2. Release the brake pedal. The systemholds your vehicle at a standstill. Theauto hold active indicator remainsilluminated in the information display.
3. When you press the accelerator pedal,the system releases the brakes and youwill be able to drive off. Once you driveoff, the auto hold active indicator nolonger illuminates in the informationdisplay.
Note:The auto-start-stop system (ifequipped) may stop the engine when youpress the brake pedal. If this occurs, itrestarts once you press the acceleratorpedal. Auto Hold still holds your vehicle ata standstill with the engine off.
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PRINCIPLE OF OPERATION
The traction control system helps avoid drivewheel spin and loss of traction.
If your vehicle begins to slide, the systemapplies the brakes to individual wheels and,when needed, reduces engine power at thesame 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 tractioncontrol light illuminates steadily if thesystem detects a failure. Make sure youdid not manually disable the tractioncontrol system using the informationdisplay controls or the switch. If the stabilitycontrol and traction control light is still
illuminating steadily, have the systemserviced 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 each timeyou 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 On and Off
You can switch traction control on and offthrough the information display controls. SeeGeneral Information (page 120).
When you switch the system off, a messageand an illuminated icon appear on theinstrument cluster.
Switch traction control on again to return thesystem to normal operations.
Note:Your vehicle may have MyKeyrestrictions regarding this feature. SeePrinciple of Operation (page 67).
System Indicator Lights and Messages
The stability and traction controllight temporarily illuminates onengine start-up and flashes:
•When a driving condition activates eitherof the systems.
•If a problem occurs in either of thesystems.
The stability and traction controloff light temporarily illuminates onengine start-up and stays on whenyou switch the traction control system off.
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PRINCIPLE OF OPERATION
WARNING: Vehicle modificationsinvolving braking system, aftermarket roofracks, suspension, steering system, tireconstruction and wheel and tire size maychange the handling characteristics of yourvehicle and may adversely affect theperformance 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.
WARNING: Remember that evenadvanced technology cannot defy the lawsof physics. 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 theroad; this could reduce the operator’sability to control the vehicle potentiallyresulting in a loss of vehicle control, vehiclerollover, personal injury and death. If yourelectronic stability control system activates,SLOW DOWN.
The system automatically turns on each timeyou switch the ignition on.
If a fault occurs in either the stability controlor the traction control system, you mayexperience the following conditions:
•The stability and traction control lightilluminates steadily.
•The stability control and traction controlsystems do not enhance your vehicle'sability to maintain traction of the wheels.
If a driving condition activates either thestability control or the traction control systemyou may experience the following conditions:
•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 and yourfoot is not on the brake, the brake pedalmay move as the system applies higherbrake force.
The stability control system has severalfeatures built into it to help you maintaincontrol of your vehicle:
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Stability Control

Electronic Stability Control
The system enhances your vehicle’s abilityto prevent skids or lateral slides by applyingbrakes to one or more of the wheelsindividually and, if necessary, reducingengine power.
Roll Stability Control
The system enhances your vehicle’s abilityto prevent rollovers by detecting yourvehicle’s roll motion and the rate at which itchanges by applying the brakes to one ormore wheels individually.
Traction Control
The system enhances your vehicle’s abilityto maintain traction of the wheels bydetecting and controlling wheel spin. SeeUsing Traction Control (page 231).Vehicle without stability controlskidding off its intended route.A
Vehicle with stability controlmaintaining control on a slipperysurface.
B
USING STABILITY CONTROL
Stability Control and Traction Controlwith Roll Stability Control™ (RSC™)
The system automatically activates when youstart your engine. When the transmission isin reverse (R), they are disabled. You canswitch off the traction control portion of thesystem independently. See Using TractionControl (page 231).
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The system may apply the brakes to slowthe vehicle to the new set speed. The setspeed displays continuously in theinformation display when the system isactive.
Canceling the Set Speed
Press and release the button or tapthe brake pedal.
The set speed does not erase.
Resuming the Set Speed
Press and release the button.
Your vehicle speed returns to the previouslyset speed and gap setting. The set speeddisplays continuously in the informationdisplay when the system is active.
Note:Only use resume if you are aware ofthe set speed and intend to return to it.
Automatic Cancellation
Automatic cancellation can also occur when:
•The tires lose traction.
•You apply the parking brake.
Park Brake Application
Automatic parking brake application andcancellation occurs if:
•You unbuckle the seatbelt and open thedoor after you stop the vehicle.
•You hold the vehicle at a stopcontinuously for more than three minutes.
Hilly Condition Usage
You should select a lower gear when thesystem is active in situations such asprolonged downhill driving on steep grades,for example in mountainous areas. Thesystem needs additional engine braking inthese situations to reduce the load on thevehicle’s regular brake system to prevent itfrom overheating.
Note:An audible alarm sounds and thesystem shuts down if it applies brakes for anextended period of time. This allows thebrakes to cool. The system functionsnormally again after the brakes cool.
Switching Adaptive Cruise Control Off
Press and release the button whenthe system is in standby mode, orswitch the ignition off.
Note:You erase the set speed and gapsetting when you switch the system off.
Detection Issues
WARNING: On rare occasions,detection issues can occur due to the roadinfrastructures, for example bridges,tunnels and safety barriers. In these cases,the system may brake late orunexpectedly. At all times, you areresponsible for controlling your vehicle,supervising the system and intervening, ifrequired.
WARNING: If the systemmalfunctions, have your vehicle checkedas soon as possible.
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•Box trailers that have a width greater than8.5 ft (2.6 m) at the front may cause earlyalerts when you pass a vehicle.
•Clam shell or V-Nose box trailers with awidth greater than 8.5 ft (2.6 m) at thefront may cause delayed alerts when avehicle traveling the same speed as yourvehicle merges lanes.
System Errors
If the system detects a fault, a warning lampilluminates and a message displays. SeeInformation Messages (page 125).
Switching the System On and Off
You can switch the system off using theinformation display. See General Information(page 120). When you switch the system off,a warning lamp illuminates and a messagedisplays. When you switch the system on oroff, the alert indicators flash twice.
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.
CROSS TRAFFIC ALERT
WARNING: Do not use the crosstraffic alert system as a replacement forusing the interior and exterior mirrors orlooking over your shoulder beforereversing out of a parking space. The crosstraffic alert system is not a replacement forcareful driving.
WARNING: The system may notoperate properly during severe weatherconditions, for example snow, ice, heavyrain and spray. Always drive with due careand attention. Failure to take care mayresult in a crash.
The system is designed to alert you ofvehicles approaching from the sides whenyou shift into reverse (R).
Using the Cross Traffic Alert System
The system is designed to detect vehiclesthat approach with a speed up to 37 mph(60 km/h). Coverage decreases when thesensors are partially, mostly or fullyobstructed. Slowly reversing helps increasethe coverage area and effectiveness.
The system turns on when you start theengine and you shift into reverse (R). Thesystem turns off when you shift out of reverse(R).
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Driving Aids

Changing the drive mode automaticallychanges the functionality of the followingsystems:
•Electronically power-assisted steeringsystem adjusts steering effort and feelbased on the mode you select. SeeSteering (page 279).
•Electronic stability control and tractioncontrol maintain your vehicle control inadverse conditions or high performancedriving. See Stability Control (page 232).
•Electronic throttle control enhances thepowertrain response to your inputs.
•Transmission controls optimize with shiftschedules tuned to each mode.
•Driveline settings optimize for eachmode.
Using the System
The system automatically tailors your vehicleconfiguration for each mode you select.
To change the drive mode setting, use thedrive mode selector on the center console.
Note:Mode changes are not available whenthe vehicle ignition is off or when the engineis not running.
•NORMAL – For everyday driving. Thismode is a perfect balance of excitement,comfort and convenience.
•EXCITE – For aggressive on-road driving.This mode increases throttle response,provides a sportier steering feel, alongwith quicker shifting. The suspensionstiffens, with an emphasis on handlingand control. The transmission also holdsgears longer, helping your vehicleaccelerate faster when shifting gears.
•CONSERVE – Enables efficient andresponsible driving. It helps delivermaximum fuel efficiency and increasesdriving range.
•NORMAL 4A – For general on-roaddriving. Use this mode on normal firmsurfaces such as dry or wet pavementand hard packed dirt or gravel roads.Delivers power to all four wheels, asrequired.
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TOWING A TRAILER
WARNING: Towing trailersbeyond the maximum recommendedgross trailer weight exceeds the limitof your vehicle and could result inengine damage, transmission damage,structural damage, loss of vehiclecontrol, vehicle rollover and personalinjury.
WARNING: Do not exceed theGVWR or the GAWR specified on thecertification label.
Note: See Recommended TowingWeights (page 309).
Your vehicle may have electrical items,such as fuses or relays, related totowing. See Fuses (page 341).
Your vehicle's load capacity designationis by weight, not by volume, so youcannot necessarily use all availablespace when loading a vehicle or trailer.
Towing a trailer places an extra load onyour vehicle's engine, transmission, axle,brakes, tires and suspension. Inspectthese components periodically during,and after, any towing operation.
Load Placement
To help minimize how trailer movementaffects your vehicle when driving:
•Load the heaviest items closest tothe trailer floor.
•Load the heaviest items centeredbetween the left and right side trailertires.
•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 and load capacity. Whenboth the loaded vehicle and trailerare connected, the trailer frameshould be level, or slightly angleddown toward your vehicle, whenviewed 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 inanother chapter of this manual. SeeLoad Limit (page 292).
You can also find information in the RV& Trailer Towing Guide available at yourauthorized dealer, or online.
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Towing

This feature applies your vehicle brakes atindividual wheels and, if necessary, reducesengine power. If the trailer begins to sway,the stability control light flashes and themessage TRAILER SWAY REDUCE SPEEDappears in the information display. The firstthing to do is slow your vehicle down, thenpull safely to the side of the road and checkfor proper tongue load and trailer loaddistribution. See Load Carrying (page 287).
RECOMMENDED TOWING
WEIGHTS
Note:Do not exceed the trailer weightfor your vehicle configuration listed inthe chart below.
Note:Make sure to take intoconsideration trailer frontal area. Do notexceed 36.5 feet² (3.39 meters²) if yourvehicle is equipped with the standardtowing package, or 60 feet² (5.57meters²) if your vehicle is equipped withthe optional heavy duty package.
Note:Exceeding this limitation maysignificantly reduce the performance ofyour towing vehicle. Selecting a trailerwith a low aerodynamic drag androunded front design helps optimizeperformance and fuel economy.
Note:For high altitude operation,reduce the gross combined weight by2% per 1,000 ft (300 m) starting at the1,000 ft (300 m) elevation point.
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.
To calculate the maximum loaded trailerweight for your vehicle:
1.Start with the gross combined weightrating for your vehicle model andaxle ratio. See the following chart.
2.Subtract all of the following that
apply to your vehicle:
•Vehicle curb weight.
•Hitch hardware weight, such as adraw bar, ball, locks or weightdistributing.
•Driver weight.
•Passenger weight.
•Payload, cargo and luggageweight.
•Aftermarket equipment weight.
3. This equals the maximum loadedtrailer weight for this combination.
Note:The trailer tongue load figuresinto the payload for your vehicle.Reduce the total payload by the finaltrailer tongue weight.
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Towing

1.Grab the trailer hitch cover at the bottomand pull towards the rear of the vehicleuntil the bottom of the trailer hitch coverunsnaps from the bumper.
2. Grab the trailer hitch cover at the edgeand rotate until the top of the trailer hitchcover unsnaps from the bumper, thenremove the trailer hitch cover.
To install the trailer hitch cover:
1. Line up the snaps on the trailer hitchcover to the holes on the bumper andpush forward until it snaps into place.
Hitches
WARNING: Do not cut, drill, weld ormodify the trailer hitch. Modifying the trailerhitch could reduce the hitch rating.
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.
Integrated Hitch Rating
WARNING: Towing trailers beyondthe maximum recommended gross trailerweight exceeds the limit of your vehicleand could result in engine damage,transmission damage, structural damage,loss of vehicle control, vehicle rollover andpersonal injury.
The standard integrated hitch has two ratingsdepending on mode of operation:
•Weight-carrying mode requires a drawbar and hitch ball. The draw bar supportsall the vertical tongue load of the trailer.
•Weight-distributing mode requires anaftermarket weight-distributing system,which includes draw bar, hitch ball, springbars and snap-up brackets. This systemdistributes the vertical tongue load of thetrailer between the truck and the trailer.
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