overheating LINCOLN NAVIGATOR 2018 Owners Manual

Type ThreeType Four
See Information Displays (page 119).
HEATED STEERING WHEEL (IF
EQUIPPED)
Switch the heated steering wheel on and offusing the touchscreen.
Touch the button to switch theheated steering wheel on and off.
Note:You can use the heated steeringwheel only when the engine is running.
Note:The system uses a sensor and isdesigned to control the temperature of thesteering wheel and to prevent it fromoverheating.
Note:In warm temperatures, the steeringwheel quickly reaches its maximumtemperature and the system reduces thecurrent to the heating element. This couldcause you to think that the system hasstopped working but it has not. This isnormal.
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Steering WheelE223601 E251878

Brake System Warning Lamp
WARNING: Driving your vehicle withthe warning lamp on is dangerous. Asignificant decrease in brakingperformance may occur. It may take youlonger to stop your vehicle. Have yourvehicle checked as soon as possible.Driving extended distances with theparking brake engaged can cause brakefailure and the risk of personal injury.
It illuminates when you engage theparking brake and the ignition ison.
If it illuminates when your vehicle is moving,make sure the parking brake is disengaged. If the parking brake is disengaged, thisindicates low brake fluid level or a brakesystem fault. Have your vehicle checked assoon as possible.
Cruise Control Indicator
It illuminates when you switch thesystem on.
See Using Cruise Control (page 256).
Direction Indicator
Illuminates when the left or rightturn signal or the hazard warningflasher is turned on. Flashesduring operation. An increase in the rate offlashing warns of a failed indicator bulb.
Door Ajar
It illuminates when you switch theignition on and remains on if anydoor or the hood is open.
Electric Park Brake
Illuminates or flashes when theelectric parking brake has amalfunction. See Electric ParkingBrake (page 226).
Electronic Limited Slip Differential (If
Equipped)
Illuminates when using theelectronic limited slip differential.
Engine Coolant Temperature WarningLamp
If it illuminates when your vehicleis moving, this indicates that theengine is overheating. Stop yourvehicle as soon as it is safe to do so andswitch the engine off. Have your vehiclechecked as soon as possible.
See Engine Coolant Check (page 366).
Engine Oil
If it illuminates with the enginerunning or when you are driving,this indicates a malfunction. Stopyour vehicle as soon as it is safe to do soand switch the engine off. Check the engineoil level.
See Engine Oil Check (page 364).
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Instrument ClusterE138644 E71340 E146190 E163170

Drivetrain
ActionMessage
Displays if the electronic limited slip differential system encounters a hardware failure. Haveyour vehicle checked as soon as possible.Check Electronic Limited Slip Differential
Displays if an electronic limited slip differential system fault is present. Have your vehicle checkedas soon as possible.Electronic Limited Slip Differential Off SeeOwner's Manual
Displays when the electronic limited slip differential system resumes normal function.Electronic Limited Slip Differential Restoredto Normal
Displays if the electronic limited slip differential system temporarily turns off due to overheatingor an undersized spare tire. If an undersized spare tire is installed, replace the spare tire with afull-sized tire as soon as possible. If not, stop the vehicle in a safe location and allow the systemto cool.
Electronic Limited Slip DifferentialTemporarily Disabled
Displays if the electronic limited slip differential has limited functionality. This could be due toan undersized spare tire or caused by the system overheating. If an undersized spare tire isinstalled, replace the spare tire with a full-sized tire as soon as possible. If an undersized sparetire is not installed, the vehicle has reduced functionality. Have your vehicle checked as soonas possible.
Electronic Limited Slip Differential ReducedTorque
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Information Displays

ActionMessage
A trailer tire pressure sensor is malfunctioning. If the warning stays on or continuesto come on, contact an authorized dealer as soon as possible.Trailer Tire Pressure Sensor Fault
The trailer tire pressure monitoring system is malfunctioning. If the warning stayson or continues to come on, contact an authorized dealer.Trailer Tire Pressure Monitor Fault
The system cannot detect the trailer tire pressure monitoring system.Trailer Tire Pressure Monitor Capability Not Detected
The trailer tire pressure monitoring system is not setup. See General Information(page 119).Trailer Tire Pressure Indication Not Setup See Manual
Transmission
ActionMessage
You switched the engine off and shift select lever is in any position other than park (P).Shift to Park
Transmission is too cold. Wait for it to warm up before you drive.Transmission Warming Up Please Wait
Displays when the brake pedal needs to be depressed.Press Brake Pedal
The transmission is overheating and needs to cool. Stop in a safe place as soon as it’s possible.Transmission Over Temperature StopSafely
See an authorized dealer.Transmission Service Required
The transmission is overheating and needs to cool. Stop in a safe place as soon as it’s possible.Transmission Too Hot Press Brake
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Information Displays

3. Press and hold the function button youwant to program for 2 seconds, thenrelease. Repeat this step. Depending onyour brand of garage door opener, youmay need to repeat this sequence a thirdtime.
Gate Operator / Canadian Programming
Canadian radio-frequency laws requiretransmitter signals to “time-out” (or quit) afterseveral seconds of transmission – which maynot be long enough for HomeLink to pick upthe signal during programming. Similar tothis Canadian law, some U.S. gate operatorsare designed to “time-out” in the samemanner.
Note:If programming a garage door openeror gate operator, it is advised to unplug thedevice during the “cycling” process toprevent possible overheating.
1. Press and release, every two seconds,your hand-held transmitter until theHomeLink indicator light changes to arapidly blinking or continuously on light.
2.Release the hand-held transmitter button.
3. Continue programing HomeLink. SeeIn-Vehicle Programming, Step 4.
Erasing the Function Button Codes
Note:You cannot erase individual buttons.
1. Press and hold the outer two functionbuttons simultaneously for approximately10 seconds until the indicator light abovethe buttons flashes rapidly.
2.When the indicator light flashes, releasethe buttons. You erased the codes for allbuttons.
Reprogramming a Single Button
To program a device to a previously trainedbutton, follow these steps:
1. Press and hold the desired button. DoNOT release the button.
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Universal Garage Door OpenerE188212 E188213

When climbing a steep slope or hill, start ina lower gear rather than downshifting to alower gear from a higher gear once theascent has started. This reduces strain onthe engine and the possibility of stalling.
If your vehicle stalls, do not try to turn aroundbecause this could cause vehicle roll over.It is better to reverse back to a safe location.
Apply just enough power to the wheels toclimb the hill. Too much power causes thetires to slip, spin or lose traction, resulting inloss of vehicle control.
Descend a hill in the same gear you woulduse to climb up the hill to avoid excessivebrake application and brake overheating. Donot descend in neutral. Disengage overdriveor move the transmission selector lever to alower gear. When descending a steep hill,avoid sudden hard braking as you could losecontrol. The front wheels have to be turningin order to steer your vehicle.
If your vehicle has anti-lock brakes, apply thebrakes steadily. Do not pump the brakes.
Driving on Snow and Ice
WARNING: If you are driving inslippery conditions that require tire chainsor cables, then it is critical that you drivecautiously. Keep speeds down, allow forlonger stopping distances and avoidaggressive steering to reduce the chancesof a loss of vehicle control which can leadto serious injury or death. If the rear endof your vehicle slides while cornering, steerin the direction of the slide until you regaincontrol of your vehicle.
Note:Excessive tire slippage can causetransmission damage.
Four-wheel drive vehicles have advantagesover two-wheel drive vehicles in snow andice but can skid like any other vehicle.Should you start to slide when driving onsnowy or icy roads, turn the steering wheelin the direction of the slide until you regaincontrol.
Avoid sudden applications of power andquick changes of direction on snow and ice.Apply the accelerator slowly and steadilywhen starting from a full stop.
Avoid sudden braking. Although a four-wheeldrive vehicle may accelerate better than atwo-wheel drive vehicle in snow and ice, itdoes not stop any faster as braking occursat all four wheels. Do not becomeoverconfident in any road condition.
Make sure you allow sufficient distancebetween you and other vehicles for stopping.Drive slower than usual and consider usingone of the lower gears. In emergencystopping situations, apply the brake steadily.Do not pump the brake pedal. See Hints onDriving With Anti-Lock Brakes (page 226).
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Four-Wheel Drive (If Equipped)E143949

Changing the Set Speed
•Press RES+ or SET- to change the setspeed in small increments.
•Press the accelerator or brake pedal untilyou reach the desired speed. Press RES+or SET-.
•Press and hold RES+ or SET- to changethe set speed in large increments.Release the control when you reach thedesired speed.
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 CAN or tap the brake pedal. The setspeed does not erase.
Resuming the Set Speed
Note:Only use resume if you are aware ofthe set speed and intend to return to it.
Press RES+. Your vehicle speed returns tothe previously set speed and gap setting. The set speed displays continuously in theinformation display when the system isactive.
Automatic Cancellation
Automatic cancellation can also occur if:
•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 and Trailer Tow Usage
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.
Note:When towing with adaptive cruisecontrol, switch on Tow/Haul Mode.
Note:Tow/Haul mode increases the timegaps and allows more distance for braking.
Select a lower gear when the system isactive in situations such as prolongeddownhill driving on steep grades, forexample in mountainous areas. The systemneeds additional engine braking in thesesituations to reduce the load on the vehicle’sregular brake system to prevent it fromoverheating.
Switching Adaptive Cruise Control Off
Note:You erase the set speed and gapsetting when you switch the system off.
Press OFF when the system is in standbymode, or switch the ignition off.
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Cruise Control

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
WARNING: The electric powersteering system has diagnostic checks thatcontinuously monitor the system. If a faultis detected, a message displays in theinformation display. Stop your vehicle assoon as it is safe to do so. Switch theignition off. After at least 10 seconds,switch the ignition on and watch theinformation display for a steering systemwarning message. If a steering systemwarning message returns, have the systemchecked by an authorized dealer.
WARNING: If the system detects anerror, you may not feel a difference in thesteering, however a serious condition mayexist. Obtain immediate service from anauthorized dealer, failure to do so mayresult in loss of steering 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

BREAKING-IN
You need to break in new tires forapproximately 300 mi (480 km). During thistime, your vehicle may exhibit some unusualdriving characteristics.
Avoid driving too fast during the first 1,000 mi(1,600 km). Vary your speed frequently andchange up through the gears early. Do notlabor the engine.
Do not tow during the first 1,000 mi(1,600 km).
REDUCED ENGINE PERFORMANCE
WARNING: If you continue to driveyour vehicle when the engine isoverheating, the engine could stop withoutwarning. Failure to follow this instructioncould result in the loss of control of yourvehicle.
If the engine coolant temperature gaugeneedle moves to the upper limit position, theengine is overheating. See Gauges (page112).
You must only drive your vehicle for a shortdistance if the engine overheats. Thedistance you can travel depends on ambienttemperature, vehicle load and terrain. Theengine continues to operate with limitedpower for a short period of time.
If the engine temperature continues to rise,the fuel supply to the engine reduces. Theair conditioning switches off and the enginecooling fan operates continually.
1. Gradually reduce your speed and stopyour vehicle as soon as it is safe to doso.
2. Immediately switch the engine off toprevent severe engine damage.
3. Wait for the engine to cool down.
4. Check the coolant level. See EngineCoolant Check (page 366).
5. Have your vehicle checked as soon aspossible.
ECONOMICAL DRIVING
Fuel economy is affected by several thingssuch as how you drive, the conditions youdrive under and how you maintain yourvehicle.
There are some things to keep in mind thatmay improve your fuel economy:
•Accelerate and slow down in a smooth,moderate fashion.
•Drive at steady speeds.
•Anticipate stops; slowing down mayeliminate the need to stop.
•Combine errands and minimizestop-and-go driving (When runningerrands, go to the furthest destinationfirst and then work your way back home).
•Close the windows for high-speeddriving.
•Drive at reasonable speeds.
•Keep the tires properly inflated and useonly the recommended size.
•Use the recommended engine oil.
•Perform all regularly scheduledmaintenance.
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Driving Hints

4. Replace the coolant reservoir cap, turnit clockwise until you feel a strongresistance.
5. Check the coolant level in the coolantreservoir the next few times you driveyour vehicle. If necessary, add enoughprediluted engine coolant to bring thecoolant level to the correct level.
If you have to add more than 1.1 qt (1 L) ofengine coolant per month, have your vehiclechecked as soon as possible. Operating anengine with a low level of coolant can resultin engine overheating and possible enginedamage.
Note:If your vehicle has orange coolant,during normal vehicle operation, the coolantmay change color from orange to pink orlight red. As long as the coolant is clear anduncontaminated, this color change does notindicate the coolant has degraded nor doesit require the coolant to be drained, thesystem to be flushed, or the coolant to bereplaced.
In case of emergency, you can add a largeamount of water without engine coolant inorder to reach a vehicle service location. Inthis instance, qualified personnel:
1. Must drain the cooling system.
2. Chemically clean the coolant system.
3. Refill with engine coolant as soon aspossible.
Water alone, without engine coolant, cancause engine damage from corrosion,overheating or freezing.
Do not use the following as a coolantsubstitute:
•Alcohol.
•Methanol.
•Brine.
•Any coolant mixed with alcohol ormethanol antifreeze.
Alcohol and other liquids can cause enginedamage from overheating or freezing.
Do not add extra inhibitors or additives tothe coolant. These can be harmful andcompromise the corrosion protection of thecoolant.
Recycled Coolant
We do not recommend the use of recycledcoolant as an approved recycling process isnot yet available.
Dispose of used engine coolant in anappropriate manner. Follow yourcommunity's regulations and standards forrecycling and disposing of automotive fluids.
Severe Climates
If you drive in extremely cold climates:
•It may be necessary to increase thecoolant concentration above 50%.
•A coolant concentration of 60% providesimproved freeze point protection. Coolant concentrations above 60%decrease the overheat protectioncharacteristics of the coolant and maycause engine damage.
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Maintenance