lock LINCOLN NAVIGATOR 2023 Repair Manual

Note:The engine block heater is mosteffective when outdoor temperatures arebelow 0°F (-18°C).
USING THE ENGINE BLOCK HEATER
Make sure the receptacle terminals are cleanand dry prior to use. Clean them with a drycloth if necessary.
The heater uses 0.4 to 1.0 kilowatt-hours ofenergy per hour of use. The system does nothave a thermostat. It achieves maximumtemperature after approximately three hoursof operation. Using the engine block heaterlonger than three hours does not improvesystem performance and unnecessarily useselectricity.
STOPPING THE ENGINE
STOPPING THE ENGINE WHEN YOURVEHICLE IS STATIONARY
1.Shift into park (P).
2.Apply the parking brake.
3.Wait until the engine reaches idle speed.
4.Press the push button ignition switch.
STOPPING THE ENGINE WHEN YOURVEHICLE IS MOVING
WARNING: Switching off the enginewhen your vehicle is still moving results ina significant decrease in brakingassistance. Higher effort is required toapply the brakes and to stop your vehicle.A significant decrease in steeringassistance could also occur. The steeringdoes not lock, but higher effort could berequired to steer your vehicle. When youswitch the ignition off, some electricalcircuits, for example airbags, also turn off.If you unintentionally switch the ignitionoff, shift into neutral (N) and restart theengine.
1.Press and hold the push button ignitionswitch until the engine stops, or press itthree times within two seconds.
2.Shift into neutral and use the brakes tobring your vehicle to a safe stop.
3.Shift into park (P).
4.Apply the parking brake.
AUTOMATIC ENGINE STOP
WHAT IS AUTOMATIC ENGINE STOP
Automatic engine stop is a feature thatswitches the engine off if it has been idlingfor an extended period to help you save fuel.
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HOW DOES FOUR-WHEEL DRIVE
WORK
Using the 1-Speed Automatic Four-Wheel Drive System
The 1-speed automatic four-wheel drivesystem utilizes an electronically controlledon-demand 1-speed transfer case. Thissystem monitors various vehicle sensoryinputs to provide an increased level ofperformance. This system offers the drivertwo-wheel drive high, four-wheel drive autoand four-wheel drive high as available modesof operation via the selectable drive modeswitch. When four-wheel drive auto isselected, the system continuously variespower to the front wheels for optimumperformance for all on-road conditions. Whenfour-wheel drive high is selected, the systemprovides power to the front and rear wheelsfor use in off-road or slippery conditions suchas deep snow, sand or mud. There is furtherinformation on driving in unique drivingconditions. See Driving Hints (page 384).
Using the 2-Speed Automatic Four-Wheel Drive System (If Equipped)
The 2-speed automatic four-wheel drivesystem utilizes an electronically controlledon-demand 2-speed transfer case. Thissystem monitors various vehicle sensoryinputs to provide an increased level ofperformance. This system offers the drivertwo-wheel drive high, four-wheel drive auto,four-wheel drive high, and four-wheel drivelow as available modes of operation. Whenfour-wheel drive auto is selected, the systemcontinuously varies power to the front wheelsfor optimum performance for all on-roadconditions. When either four-wheel drive highor four-wheel drive low are selected with theappropriate drive modes , the four-wheeldrive system provides electronically lockedpower to the front and rear wheels for usein off-road or slippery conditions such asdeep snow, sand or mud. Selecting slowclimb also provides additional gearing forincreased torque multiplication for conditionslike deep sand, snow, steep slopes, or pulling
heavy objects. See Slow Climb (page 297).Additionally, the system is capable ofrecreational flat towing by putting thetransfer case into neutral (N). SeeRecreationally Towing Your Vehicle (page397).
There is further information on driving inunique driving conditions. See Driving Hints(page 384).
FOUR-WHEEL DRIVE
PRECAUTIONS
WARNING: Vehicles with a highercenter of gravity (utility and four-wheeldrive vehicles) handle differently thanvehicles with a lower center of gravity(passenger cars). Avoid sharp turns,excessive speed and abrupt steering inthese vehicles. Failure to drive cautiouslyincreases the risk of losing control of yourvehicle, vehicle rollover, personal injuryand death.
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Note:Your vehicle could have side stepsthat can become damaged, due to reducedground clearance, when taking your vehicleoff-road. Remove side steps before drivingyour vehicle off-road.
SELECTING A FOUR-WHEEL DRIVE
MODE
To select a specific four-wheel drive modeplease select one of the desired drivemodes. For additional information. SeeSelecting a Drive Mode (page 295).
Note:When shifting to and from four-wheeldrive, a message appears in the instrumentcluster display indicating that the system isin the process of making a shift.
Note:Do not perform this operation if therear wheels are slipping or while applyingthe accelerator pedal.
If the system detects a fault, a warningmessage appears in the instrument clusterdisplay. See Four-Wheel Drive –Information Messages (page 228).
Note:Do not use DEEP CONDITIONS orSLOW CLIMB on dry, hard surfaced roads.Doing so produces excessive noise,increases tire wear and may damage drivecomponents. The 4X4 system in thesemodes is only intended for consistentlyslippery or loose surfaces.
Shifting to or from Slow Climb (4L)
To select or exit SLOW CLIMB (4L):
1.Bring your vehicle to a speed of 3 mph(5 km/h) or less.
2.Place the transmission in neutral (N).
3.Select SLOW CLIMB on the drive modeswitch.
A message appears in the instrument clusterdisplay indicating a four-wheel drive shift isin progress. If any of the above shiftconditions are not present, the shift will notoccur and a message appears in theinstrument cluster display guiding youthrough the proper shifting procedures. Ifthere is a transfer case tooth blockage, amessage appears in the instrument cluster
display. To alleviate this condition, place thetransmission in a forward gear, move yourvehicle forward approximately 4.9 ft (1.5 m),and shift the transmission back to neutral (N)to allow the transfer case to complete therange shift.
Note:You could hear some noise as thesystem shifts or engages which is normal. Ifthe system detects a fault, a warningmessage appears in the instrument clusterdisplay. See Four-Wheel Drive –Information Messages (page 228).
FOUR-WHEEL DRIVE MODES
TWO-WHEEL DRIVE HIGH
2H turns on when you select NORMAL orCONSERVE. Two-wheel drive high is forgeneral on-road driving. Power is sent to therear wheels only.
Note:Two-wheel drive high can turn on oroff based on Drive Mode selection See DriveMode Control (page 294).
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FOUR-WHEEL DRIVE AUTO
4A turns on when you select EXCITE,NORMAL 4x4 AUTO or SLIPPERY.Four-wheel drive auto provides electronicallycontrolled four-wheel drive power to boththe front and rear wheels, as required, forincreased traction in varying on-roadconditions. The four-wheel drive auto tuningvaries based on selected Drive Mode. SeeSelecting a Drive Mode (page 295).
Note:Four-wheel drive auto can turn on oroff automatically based on Drive Modeselection. See Selecting a Drive Mode (page295).
FOUR-WHEEL DRIVE HIGH
4H turns on when you select DEEPCONDITIONS. Four-wheel drive highprovides electronically locked four-wheeldrive power to both the front and rear wheelsfor use in off-road or winter conditions suchas deep snow, sand or mud. This mode isnot for use on dry pavement.
Note:Four-wheel drive high can turn on oroff automatically based on Drive Modeselection. See Selecting a Drive Mode (page295).
FOUR-WHEEL DRIVE LOW
This mode turns on when you select SLOWCLIMB. It provides electronically lockedfour-wheel drive power to both the front andrear wheels for use on low traction surfaces,and does so with additional gearing forincreased torque multiplication. This modeis only for off-road conditions, such as deepsand, steep slopes, or pulling heavy objects.
Note:Four-wheel drive low can turn on oroff automatically based on drive modeselection. See Selecting a Drive Mode (page295).
FOUR-WHEEL DRIVE INDICATORS
Two-wheel Drive High
Momentarily illuminates whentwo-wheel drive high is selected.
Four-wheel Drive Auto
Continuously illuminates whenfour-wheel drive auto is selected.
Four-wheel Drive High
Continuously illuminates whenfour-wheel drive high is selected.
Four-wheel Drive Low (If Equipped)
Continuously illuminates whenfour-wheel drive low is selected.
FOUR-WHEEL DRIVE –
TROUBLESHOOTING
FOUR-WHEEL DRIVE – WARNINGLAMPS
Illuminates when a four-wheeldrive or power train fault ispresent.
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ActionMessage
Displays when there is a transfer case gear tooth blockage whileshifting to or from four-wheel drive low mode or to the neutral state.Place the transmission in a forward gear, move your vehicle forwardapproximately 5 ft (1.5 m), and shift the transmission back to neutral(N) to allow the transfer case to complete the range shift.
Shift Delayed Drive Forward
Displays when the four-wheel system detects elevated systemtemperature and temporarily stops providing power to the frontwheels. The system automatically resumes normal function when thesystem temperature returns to normal.
4x4 Temporarily Disabled
Displays when the four-wheel drive system resumes normal function.4x4 Restored
Displays when the four-wheel drive system detects driving conditionwhich temporarily require greater four-wheel drive performance. Thesystem automatically resumes normal function after the system nolonger detects these driving conditions.
4X4 Temporarily Locked
Displays when the system requires an additional transmission shift toneutral (N) to complete a transfer case shift.Shift to Neutral
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BRAKE PRECAUTIONS
Wet brakes result in reduced brakingefficiency. Gently press the brake pedal afew times when leaving a car wash or drivingfrom standing water to dry the brakes.
Note:Depending on applicable laws andregulations in the country where your vehiclewas originally built, the stoplamps could flashduring heavy braking. The hazard warningflashers could also turn on when your vehiclecomes to a stop.
ANTI-LOCK BRAKING SYSTEM
ANTI-LOCK BRAKING SYSTEMLIMITATIONS
The anti-lock braking system does noteliminate the risk of crash when:
•You drive too closely to the vehicle infront of you.
•Your vehicle is hydroplaning.
•You take corners too fast.
•The road surface is poor.
Note: If the system activates, the brakepedal could pulse and travel further. Maintain pressure on the brake pedal.
BRAKE OVER ACCELERATOR
In the event the accelerator pedal becomesstuck or entrapped, apply steady and firmpressure to the brake pedal to slow thevehicle and reduce engine power. If youexperience this condition, apply the brakesand bring your vehicle to a safe stop. Movethe transmission to park (P), switch theengine off and apply the parking brake.Inspect the accelerator pedal for anyinterference. If none are found and thecondition persists, have your vehicle towedto the nearest authorized dealer.
LOCATING THE BRAKE FLUID
RESERVOIR
See Under Hood Overview (page 415).
CHECKING THE BRAKE FLUID
WARNING: Do not use any fluid otherthan the recommended brake fluid as thiswill reduce brake efficiency. Use ofincorrect fluid could result in the loss ofvehicle control, serious personal injury ordeath.
WARNING: Only use brake fluid froma sealed container. Contamination with dirt,water, petroleum products or othermaterials may result in brake systemdamage or failure. Failure to adhere to thiswarning could result in the loss of vehiclecontrol, serious personal injury or death.
WARNING: Do not allow the fluid totouch your skin or eyes. If this happens,rinse the affected areas immediately withplenty of water and contact your physician.
WARNING: The brake system couldbe affected if the brake fluid level is belowthe MIN mark or above the MAX mark onthe brake fluid reservoir.
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1.Park your vehicle on a level surface.
2.Look at the brake fluid reservoir to seewhere the brake fluid level is relative tothe MIN and the MAX marks on thereservoir.
Note:To avoid fluid contamination, thereservoir cap must remain in place and fullytight, unless you are adding fluid.
Only use fluid that meets our specifications.See Capacities and Specifications (page467).
BRAKE FLUID SPECIFICATION
See Brake Fluid Specification (page 475).
BRAKES – TROUBLESHOOTING
BRAKES – WARNING LAMPS
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.
If the ABS indicator illuminateswhen you are driving, this indicatesa malfunction. Your vehiclecontinues to have normal braking withoutthe anti-lock braking system function. Seean authorized dealer.
It also momentarily illuminates when youswitch the ignition on to confirm the lamp isfunctional. If it does not illuminate when youswitch the ignition on, or begins to flash atany time, have the system checked by anauthorized dealer.
The brake indicator momentarilyilluminates when you switch theignition on to confirm the lamp isfunctional. It may also illuminate when youapply the parking brake and the ignition ison. 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. See anauthorized dealer.
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The system only applies the brakes for ashort period of time when an event occurs.Act as soon as you notice the brakes applyto remain in control of the vehicle. If you donot intervene the vehicle may start to moveagain.
Note:Certain add-on devices around thebumper or fascia may create false alerts. Forexample, large trailer hitches, bicycle orsurfboard racks, license plate brackets,bumper covers or any other device that mayblock the normal detection zone of thesystem. Remove the add-on device toprevent false alerts.
Note:The system does not react to small ormoving objects, particularly those close tothe ground.
Note:The system does not operate duringhard acceleration or steering.
Note:If your vehicle sustains damage to thebumper or fascia leaving it misaligned orbent, it could alter the sensing zone causinginaccurate measurement of obstacles orfalse alerts.
Note:Vehicle loading and suspensionchanges can impact the angle of the sensorsand may change the normal detection zoneof the system resulting in inaccuratemeasurement of obstacles or false alerts.
Note:When you connect a trailer, the systemmay detect the trailer and provide an alert,or the system turns off. If the system doesnot turn off, manually switch the system offafter you connect the trailer.
Note:You may experience reduced systemperformance on road surfaces that limitdeceleration. For example, roads with ice,loose gravel, mud or sand.
SWITCHING REVERSE BRAKING
ASSIST ON AND OFF
1.Press Features on the touchscreen.
2.Press Driver Assistance.
3.Switch Reverse Brake Assist on or off.
Note:The system is unavailable when therear parking aid, cross traffic alert or tractioncontrol is off.
Note:If your vehicle is not equipped withcross traffic alert the reverse braking assistrelies on input from the rear parking aid andrear camera sensors.
Note:The default setting is on in someregions.
OVERRIDING REVERSE BRAKING
ASSIST
There could be instances when unexpectedor unwanted braking occurs. Firmly pressingthe accelerator pedal or switching the featureoff overrides the system.
REVERSE BRAKING ASSIST
INDICATORS
If the system determines that a collision withan obstacle may occur, full braking mayapply.
A message and warning indicatorappear when the system appliesthe brakes.
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REVERSE BRAKING ASSIST –FREQUENTLY ASKED QUESTIONS
Why is reverse braking assist unavailable?
•Make sure the reverse braking assist ison. See Switching Reverse BrakingAssist On and Off (page 239).
•Make sure that all doors, liftgate ortailgate and hood are closed. Drive thevehicle on a straight road for a shortperiod. If the message remains, have thesystem checked.
•If your vehicle has the cross traffic alertsystem, make sure it is on. See SwitchingCross Traffic Alert On and Off (page 318).
•Make sure the rear parking aid system ison. See Parking Aids (page 255).
•Make sure the traction control is on. SeeSwitching Traction Control On and Off(page 245).
Note:The traction control automatically turnsoff if four-wheel drive low and certain drivemodes such as mud/ruts and snow/sand isactivated.
•Your vehicle may have sustained a rearend impact. Have the sensors checkedfor proper coverage and operation.
•An anti-lock brake, traction control orstability control event may have occurred.Reverse braking assist resumesoperation when the event is complete.
•Make sure the rear view camera and 360degree camera are not dirty orobstructed. If dirty, clean the camera. Ifthe message still appears after cleaningthe camera, wait a short time for themessage to clear. If the message doesnot clear, have the system checked.
•Make sure the cross traffic alert, rearparking aid and side parking aid sensorsare not blocked or faulty. See Locatingthe Cross Traffic Alert Sensors (page318). See Locating the Rear Parking AidSensors (page 256). See Locating theSide Parking Aid Sensors (page 259).
•You recently had your vehicle serviced,or the battery disconnected. Drive yourvehicle a short distance to resumesystem operation.
•Reverse braking assist does not functionwhen you connect a trailer. Operationresumes when you disconnect the trailer.
Note:If the answers to why the system isunavailable do not assist in returning reversebraking assist to available, have the systemchecked as soon as possible.
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STEERING – INFORMATION MESSAGES
ActionMessage
The power steering system has detected a condition that requiresservice. Have your vehicle checked as soon as possible.Steering Fault Service Now
The power steering system is not working. Stop your vehicle in a safeplace. Have your vehicle checked as soon as possible.Steering Loss Stop Safely
The power steering system has detected a condition that requiresservice. Have your vehicle checked as soon as possible.Steering Assist Fault Service Required
The steering system has detected a condition that requires service. Have your vehicle checked as soon as possible.Steering Lock Malfunction Service Now
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