Check braking system LINCOLN NAVIGATOR 2023 Owners Manual

Accessing the Passive Key BackupPosition......................................................205
Starting and Stopping the Engine –Troubleshooting......................................206
Auto-Start-Stop
What Is Auto-Start-Stop.............................208
Auto-Start-Stop Precautions....................208
Switching Auto-Start-Stop On and Off......................................................................208
Stopping the Engine..................................208
Restarting the Engine................................208
Auto-Start-Stop Indicators........................208
Auto-Start-Stop – Troubleshooting........209
Fuel and Refueling
Fuel and Refueling Precautions................211
Fuel Quality...................................................212
Locating the Fuel Filler Funnel.................212
Running Out of Fuel....................................213
Refueling........................................................214
Fuel Tank Capacity......................................216
Fuel and Refueling – Troubleshooting.......................................................................217
Catalytic Converter
What Is the Catalytic Converter...............218
Catalytic Converter Precautions..............218
Catalytic Converter – Troubleshooting.......................................................................219
Automatic Transmission
Automatic Transmission Precautions.....220
Automatic Transmission Positions..........220
Shifting Your Vehicle Into Gear................221
Automatic Transmission Position Indicators.......................................................................221
Manually Shifting Gears.............................221
Temporary Neutral Mode..........................222
Automatic Return to Park (P)....................223
Automatic Transmission Audible Warnings......................................................................223
Four-Wheel Drive
How Does Four-Wheel Drive Work........224
Four-Wheel Drive Precautions.................224
Four-Wheel Drive Limitations..................225
Selecting a Four-Wheel Drive Mode......226
Four-Wheel Drive Modes..........................226
Four-Wheel Drive Indicators.....................227
Four-Wheel Drive – Troubleshooting......227
Electronic Limited-Slip Differential
What Is the Electronic Limited-SlipDifferential................................................230
Electronic Limited-Slip Differential –Troubleshooting.......................................231
Brakes
Brake Precautions.......................................232
Anti-Lock Braking System.........................232
Brake Over Accelerator.............................232
Locating the Brake Fluid Reservoir........232
Checking the Brake Fluid.........................232
Brake Fluid Specification..........................233
Brakes – Troubleshooting.........................233
Electric Parking Brake
What Is the Electric Parking Brake.........235
Applying the Electric Parking Brake.......235
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMTable of Contents

SYMBOLS USED ON YOUR
VEHICLE
These are some of the symbols you may seeon your vehicle.
Airbag
Air conditioning system
Air conditioning system lubricanttype
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Blower motor
Brake fluid - non petroleum based
Brake system
Brake system
Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
Child seat tether anchor
Cruise control
Do not open when hot
Electric Parking brake
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
Fasten seatbelt
Flammable
Front fog lamps
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMSymbols GlossaryE67017 E162384 E231157 E67020 E139220 E67021 E139227 E139209 E67024 E270480 E139223 E139211 E141128 E332905 E139219 E139212 E103308 E67022 E139221 E139228 E71880 E231160

WHAT IS DISTANCE TO EMPTY
Indicates the approximate distance yourvehicle can travel on the fuel remaining inthe tank. Changes in driving pattern cancause the value to not only decrease but alsoincrease or stay constant for periods of time.
ENGINE COOLANT TEMPERATURE
GAUGE
Indicates the engine coolant temperature.
ENGINE OIL PRESSURE GAUGE
Indicates the engine oil pressure.
Note:This is a configurable gauge.
TRANSMISSION FLUID
TEMPERATURE GAUGE
Indicates the transmission fluid temperature.
Special operating conditions can causehigher than normal operating temperatures.See Special Operating ConditionsScheduled Maintenance (page 537).
Note:This is a configurable gauge.
WHAT ARE THE INSTRUMENT
CLUSTER WARNING LAMPS
Warning lamps alert you to a vehiclecondition that could become serious. Somelamps illuminate when you start your vehicleto make sure they work. If any lamps remainon after starting your vehicle, refer to therespective system warning lamp for furtherinformation.
INSTRUMENT CLUSTER WARNING
LAMPS
Anti-Lock Brake System
If it illuminates when you aredriving, this indicates that thesystem requires service. Yourvehicle continues to have normal brakingwithout the anti-lock brake system function. Have your vehicle checked as soon aspossible.
Battery
It illuminates when you switch theignition on.
If it illuminates when the engine isrunning, this indicates your vehicle requiresservice. Have your vehicle checked as soonas possible.
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMInstrument ClusterE67020 E67021

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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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMBrakes

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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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMBrakesE170684 E67020 E270480 E67024

REVERSE BRAKING ASSIST – TROUBLESHOOTING
REVERSE BRAKING ASSIST – INFORMATION MESSAGES
DescriptionMessage
Displays when the system applies the brakes and remains on for afew seconds.Reverse Brake Assist
Make sure that all doors, liftgate or tailgate and hood are closed. Drivethe vehicle on a straight road for a short period. Make sure the parkingaids and cross traffic alert systems are on. If the message remains on,have the system checked as soon as possible.
Reverse Brake Assist Not Available See Manual
Displays when a system error has occurred. Have your vehiclechecked as soon as possible.Reverse Brake Assist Fault
Displays when reverse brake assist is off.Reverse Brake Assist Off
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMReverse Braking Assist (If Equipped)

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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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMReverse Braking Assist (If Equipped)

ADAPTIVE CRUISE CONTROL –INFORMATION MESSAGES - VEHICLESWITH: STOP AND GO
Note:Depending on your vehicle optionsand instrument cluster type, not all messagesdisplay or are available.
Note:The system could abbreviate orshorten certain messages depending uponwhich cluster type you have.
ActionMessage
A malfunction is preventing the adaptive cruise from engaging.Adaptive Cruise Malfunction
Front Sensor Not AlignedContact an authorized dealer to have the radar checked for proper coverage and operation.
Conditions exist preventing the system from being available.Adaptive Cruise Not Available
You have a blocked radar because of poor radar visibility due to inclement weather or ice, mud,or water in front of the radar. You can typically clean the sensor to resolve this.Adaptive Cruise Not Available SensorBlocked See ManualDue to the nature of radar technology, it is possible to get a blockage warning with no actualblock. This happens, for example, when driving in sparse rural or desert environments. A falseblocked condition either self clears, or clears after you restart your vehicle.
You have selected normal cruise control. The system does not brake or react to traffic.Normal Cruise Active Adaptive Braking Off
Displays when the adaptive cruise control is going to cancel and you must take control.Adaptive Cruise - Driver Resume Control
Displays when the vehicle speed is too slow to activate the adaptive cruise control and there isno lead vehicle in range.Adaptive Cruise Speed Too Low toActivate
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMAdaptive Cruise Control

Adjusting the Pre-Collision AssistSettings
You can adjust the following settings byusing the touchscreen controls in thepre-collision assist menu:
•Change alert and distance alert sensitivityto one of three possible settings.
•Switch distance indication and alert onor off.
•If required, switch automatic emergencybraking on or off.
•If required, switch evasive steering assiston or off.
Note:Automatic emergency braking andevasive steering automatically turns on everytime you switch the ignition on.
Note:If you switch automatic emergencybraking off, evasive steering assist switchesoff.
LOCATING THE PRE-COLLISION
ASSIST SENSORS
Camera.1.
Radar sensor (if equipped).2.
If a message regarding a blocked sensor orcamera appears in the information display,something is obstructing the radar signals orcamera images. The radar sensor is behindthe fascia cover in the center of the lowergrille. With a blocked sensor or camera, thesystem may not function, or performancemay reduce. See Pre-Collision Assist –Information Messages (page 328).
Note:Proper system operation requires aclear view of the road by the camera. Haveany windshield damage in the area of thecamera's field of view repaired.
Note:If something hits the front end of yourvehicle or damage occurs and your vehiclehas a radar sensor, the radar sensing zonecould change. This could cause missed orfalse vehicle detections. Have your vehicleserviced to have the radar checked forproper coverage and operation.
Note:If your vehicle detects excessive heatat the camera or a potential misalignmentcondition, a message could display in theinformation display indicating temporarysensor unavailability. When operationalconditions are correct, the messagedeactivates. For example, when the ambienttemperature around the sensor decreasesor the sensor recalibrates successfully.
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMPre-Collision AssistE253503

EVASIVE STEERING ASSISTLIMITATIONS
Evasive steering assist only activates whenall the following occur:
•Automatic emergency braking andevasive steering assist are on.
•The system detects a road user aheadand starts to apply the brakes.
•You significantly turn the steering wheelto steer around a road user.
Note:Evasive steering assist does notautomatically steer around a road user. Ifyou do not turn the steering wheel, evasivesteering assist does not activate.
Note:Evasive steering assist does notactivate if the distance to the road userahead is too small and the system cannotavoid a crash.
SWITCHING EVASIVE STEERING
ASSIST ON AND OFF
To switch the system on or off, use thetouchscreen:
1.Press Features on the touchscreen.
2.Press Driver Assistance.
3.Press Pre-Collision Assist.
4.Switch Evasive Steering on or off.
Note:If you switch automatic emergencybraking off, evasive steering assist turns off.
Note:Automatic emergency braking andevasive steering assist turn on every timeyou switch the ignition on.
PRE-COLLISION ASSIST –
TROUBLESHOOTING
PRE-COLLISION ASSIST – WARNINGLAMPS
A telltale illuminates in the clusterto indicate if the system is disabledor unavailable.
PRE-COLLISION ASSIST – INFORMATION MESSAGES
ActionMessage
You have a blocked sensor due to bad weather, ice, mud or water infront of the radar sensor. You can typically clean the sensor to resolve.Pre-Collision Assist Not Available Sensor Blocked
A fault with the system has occurred. Have your vehicle checked assoon as possible.Pre-Collision Assist Not Available
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2023 Navigator (TB9) Canada/United States of America, enUSA, Edition date: 202207, DOMPre-Collision AssistE335612