2018 LINCOLN NAVIGATOR cooling

Status Bar.A
Speedometer.B
Right Information Group.C
Fuel Gauge.D
Coolant Gauge.E
Left Information Group.F
Status Bar
Displays information related to the currentaudio source, compass direction and outsideair temperature.
Left and Right Information Group
Information that appears depends on currentgauge view and on-demand settings. SeeGeneral Information (page 119).
Fuel Gauge
The fuel gauge indicates about how muchfuel is in the fuel tank.
The arrow adjacent to the fuel pump symbolindicates on which side of your vehicle thefuel filler door is located.
Note:The fuel gauge may vary slightly whenyour vehicle is moving or on a slope.
Low Fuel Reminder
A low fuel level reminder displays andsounds when the distance to empty reaches75 mi (120 km) to empty for MyKey, and at50 mi (80 km), 25 mi (40 km), 10 mi (20 km)and 0 mi (0 km) for all vehicle keys.
Note:The low fuel reminder can appear atdifferent fuel gauge positions depending onfuel economy conditions. This variation isnormal.
Engine Coolant Temperature Gauge
Indicates engine coolant temperature. Atnormal operating temperature, the levelindicator will be in the normal range. If theengine coolant temperature exceeds thenormal range, stop your vehicle as soon assafely possible, switch off the engine and letthe engine cool.
WARNING: Do not remove thecoolant reservoir cap when the coolingsystem is hot. Wait 10 minutes for thecooling system to cool down. Cover thecoolant reservoir cap with a thick cloth toprevent the possibility of scalding andslowly remove the cap. Failure to followthis instruction could result in personalinjury.
WARNING LAMPS AND
INDICATORS
The following warning lamps and indicatorsalert you to a vehicle condition that maybecome serious. Some lamps illuminatewhen you start your vehicle to make surethey work. If any lamps remain on afterstarting your vehicle, refer to the respectivesystem warning lamp for further information.
Note:Some warning indicators appear inthe information display and operate thesame as a warning lamp but do notilluminate when you start your vehicle.
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Instrument Cluster

Off Road
ActionMessage
Hill descent control mode is active.Hill Descent Control Active
Hill descent control mode is inactive.Hill Descent Control OFF
Your vehicle speed requirement for off-road mode entry has not been met.For Hill Descent Reduce Speed XX MPH/km/h or Less
You need to select a transmission gear for hill descent mode.For Hill Descent Select Gear
Hill descent control mode is deactivated and you must resume control.Hill Descent Driver Resume Control
A hill descent system fault is present.Hill Descent Control Fault
The hill descent system is cooling due to overuse.Hill Descent Control Off System Cooling
The hill descent control system is ready.Hill Descent Control Ready
Park Aid
ActionMessage
The system has detected a condition that requires service. Contact your authorized dealer. SeeSide Sensing System (page 240).Check Front Park Aid
The system has detected a condition that requires service. Contact your authorized dealer. SeeRear Parking Aid (page 238).Check Rear Park Aid
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Information Displays

Driver temperature control:Adjusts the temperature setting onthe driver side. This control alsoadjusts the passenger sidetemperature when you switch offdual zone mode.
A
Defrost: Press to distribute airthrough the windshield air ventsand de-mister. Air distribution tothe instrument panel and footwellvents turns off. You can also usethis setting to defog and clear thewindshield of a thin covering of ice.
B
Heated rear window: Press toswitch the heated rear window onand off. See Heated Windows andMirrors (page 156).
C
Fan speed control: Adjusts thevolume of air circulated in front ofthe vehicle.
D
MENU: Press to access additionalcontrols for the front climatesystem. See your MyLincoln Touchinformation.
E
A/C: Press to switch the airconditioning on or off. Use A/Cwith recirculated air to improvecooling performance andefficiency.
F
Note: In certain conditions (forexample, maximum defrost), the airconditioning compressor maycontinue to operate even thoughyou switch off the air conditioning.
Recirculated air: Press to switchbetween outside air andrecirculated air. The air currentlyin the passenger compartmentrecirculates. This may reduce thetime needed to cool the interior(when used with A/C) and reduceunwanted odors from enteringyour vehicle.
G
Note: Recirculated air may turn off(or prevent you from switching on)in all air flow modes except MAXA/C to reduce the risk of fogging.Recirculation may also turn on andoff in Panel or Panel/Floor air flowmodes during hot weather in orderto improve cooling efficiency.
Passenger temperature control:Adjusts the temperature setting onthe passenger side.
H
MAX A/C: Press for maximumcooling. The driver and passengersettings set to LO, recirculated airflows through the instrument panelvents, air conditioning turns on andthe fan adjusts to the highestspeed.
I
Heated seats: Press to switch theheated seats on and off. SeeClimate Controlled Seats (page179).
J
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Climate Control

Note:For the system to function efficiently,the instrument panel and side air ventsshould be fully open.
Note:If you select AUTO during cold outsidetemperatures, the system directs air flow tothe windshield and side window air vents. Inaddition, the blower motor may run at aslower speed until the engine warms up.
Note:If you select AUTO during hottemperatures and the inside of the vehicleis hot, the system uses recirculated air tomaximize interior cooling. Blower motorspeed may also reduce until the air cools.
Quickly Heating the Interior
1. Press and release AUTO.
2. Adjust the temperature function to thesetting you prefer.
Recommended Settings for Heating
1. Press and release AUTO.
2. Adjust the temperature function to thesetting you prefer. Use 72°F (22°C) as astarting point, then adjust the setting asnecessary.
Quickly Cooling the Interior
1. Press and release MAX A/C.
Recommended Settings for Cooling
1. Press and release AUTO.
2. Adjust the temperature function to thesetting you prefer. Use 72°F (22°C) as astarting point, then adjust the setting asnecessary.
Defogging the Side Windows in ColdWeather
1. Press and release defrost.
2. Adjust the temperature control to thesetting you prefer. Use 72°F (22°C) as astarting point, then adjust the setting asnecessary.
REAR PASSENGER CLIMATE CONTROLS
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Climate Control

PRINCIPLE OF OPERATION
WARNING: Hill descent controlcannot control descent in all surfaceconditions and circumstances, such as iceor extremely steep grades. Hill descentcontrol is a driver assist system and cannotsubstitute for good judgment by the driver.Failure to do so may result in loss ofvehicle control, crash or serious injury.
WARNING: Hill descent control doesnot provide hill hold at zero miles per hour(0 kilometers per hour). When stopped,you must apply the parking brake or placethe vehicle in P (Park), or it may roll away.
Hill descent control allows you to set andmaintain vehicle speed while descendingsteep grades in various surface conditions.
Hill descent control can maintain vehiclespeeds on downhill grades between 2 mph(3 km/h) and 12 mph (20 km/h). Above 20mph (32 km/h), the system remains armed,but you cannot use the system to set ormaintain the descent speed.
Hill descent control requires a cooling downinterval after a period of sustained use. Theamount of time that the feature can remainactive before cooling varies with conditions.The system provides a warning in themessage center and a tone sounds whenthe system is about to disengage for cooling.At this time, manually apply the brakes asneeded to maintain descent speed.
USING HILL DESCENT CONTROL
You can switch the hill descentcontrol on and off through theinformation display.
To increase descent speed, press theaccelerator pedal until you reach the desiredspeed. To decrease descent speed, pressthe brake pedal until you reach the desiredspeed.
Whether accelerating or decelerating, onceyou reach the desired descent speed,remove your feet from the pedals and hilldescent control maintains the chosen vehiclespeed.
Note:You may observe noise from the ABSpump motor during hill descent controloperation. This is a normal characteristic ofthe ABS and should be no reason forconcern.
Hill Descent Modes
•At speeds between 2 mph (3 km/h) and20 mph (32 km/h): Your vehicle maintainsthe speed you desire while in this mode.
•At speeds between 20 mph (32 km/h)and 40 mph (64 km/h): Your vehicle doesnot maintain the speed you desire andyou cannot set your descent speed.
•At speeds above 40 mph (64 km/h): Youneed to switch this feature back on touse.
Refer to the Information Display for additionalhill descent control messages. SeeInformation Messages (page 124).
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Hill Descent Control (If Equipped)

Before Towing a Trailer
Practice turning, stopping and backing up toget the feel of your vehicle-trailercombination before starting on a trip. Whenturning, make wider turns so the trailerwheels clear curbs and other obstacles.
When Towing a Trailer
•Do not drive faster than 70 mph(113 km/h) during the first 500 mi(800 km).
•Do not make full-throttle starts.
•Check your hitch, electrical connectionsand trailer wheel lug nuts thoroughly afteryou have traveled 50 mi (80 km).
•When stopped in congested or heavytraffic during hot weather, place thetransmission in park (P) to aid engine andtransmission cooling and to help A/Cperformance.
•Turn off the speed control when carryingheavy loads or in hilly terrain. The speedcontrol may turn off automatically whenyou are towing on long, steep grades.
•Shift to a lower gear when driving downa long or steep hill. Do not apply thebrakes continuously, as they mayoverheat and become less effective.
•If your transmission has a Grade Assistor Tow/Haul feature, use this featurewhen towing. This provides enginebraking and helps eliminate excessivetransmission shifting for optimum fueleconomy and transmission cooling.
•If your vehicle has AdvanceTrac withRSC, this system may turn on duringtypical cornering maneuvers with aheavily loaded trailer. This is normal.Turning the corner at a slower speedwhile towing may reduce this tendency.
•If your vehicle has Adaptive suspension,you can select NORMAL or SPORT drivecontrol modes for better experiencewhen towing a trailer. See InformationDisplays (page 119).
•If you are towing a trailer frequently inhot weather, hilly conditions, at the grosscombined weight rating (or anycombination of these factors), considerrefilling your rear axle with synthetic gearlubricant (if the axle is not already filledwith it). See Capacities andSpecifications (page 422).
•Allow more distance for stopping with atrailer attached. Anticipate stops andbrake gradually.
•Avoid parking on a grade. However, ifyou must park on a grade:
1. Turn the steering wheel to point yourvehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the transmission in park (P).
4.Place wheel chocks in the front and backof the trailer wheels.
Note:Chocks are not included with yourvehicle.
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Towing

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

From the main menu scroll to:
Action and descriptionMessage
Press the right arrow button,then from this menu scroll tothe following message.
Settings
Press the right arrow button,then from this menu scroll tothe following message.
Vehicle
Press the right arrow button,then from this menu scroll tothe following message.
Oil Life
Press and hold the OK buttonuntil the instrument clusterdisplays the followingmessage.
Hold OK toReset
Reset Successful
When the oil change indicatorresets the instrument clusterdisplays 100%.
Remaining Life
{00}%
Action and descriptionMessage
If the instrument clusterdisplays one of the followingmessages, repeat theprocess.
Not Reset
Reset Cancelled
ENGINE COOLANT CHECK
WARNING: Do not remove thecoolant reservoir cap when the coolingsystem is hot. Wait 10 minutes for thecooling system to cool down. Cover thecoolant reservoir cap with a thick cloth toprevent the possibility of scalding andslowly remove the cap. Failure to followthis instruction could result in personalinjury.
WARNING: Do not put coolant in thewindshield washer reservoir. If sprayed onthe windshield, coolant could make itdifficult to see through the windshield.
WARNING: To reduce the risk ofpersonal injury, make sure the engine iscool before unscrewing the coolantpressure relief cap. The cooling system isunder pressure. Steam and hot liquid cancome out forcefully when you loosen thecap slightly.
WARNING: Do not add coolantfurther than the MAX mark.
When the engine is cold, check theconcentration and level of the coolant at theintervals listed in the scheduled maintenanceinformation. See Scheduled Maintenance(page 552).
Note:Make sure that the coolant level isbetween the MIN and MAX marks on thecoolant reservoir.
Note: Coolant expands when it is hot. Thelevel may extend beyond the MAX mark.
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Maintenance