LINCOLN NAVIGATOR 2021 Owners Manual

Mud and Water
If you must drive through high water, drive
slowly. Traction or brake capability could be
limited.
When driving through water, determine the
depth and avoid water higher than the
bottom of the hubs. If the ignition system
gets wet, your vehicle may stall.
Once through water, always try the brakes.
Wet brakes do not stop your vehicle as
effectively as dry brakes. Drying can be
improved by applying light pressure to the
brake pedal when slowly moving.
Be cautious of sudden changes in vehicle
speed or direction when you are driving in
mud. Even four-wheel drive vehicles can lose
traction in slick mud. As when you are driving
over sand, apply the accelerator slowly and
avoid spinning your wheels. If the vehicle
does slide, steer in the direction of the slide
until you regain control of the vehicle.
If the transmission, transfer case or front axle
are submerged in water, their fluids should
be checked and changed, if necessary.
If the front or rear axle is submerged in water,
the axle lubricant should be replaced.
After driving through mud, clean off residue
stuck to rotating driveshafts and tires. Excess
mud stuck on tires and rotating driveshafts
causes an imbalance that could damage
drive components.
Note:
Driving through deep water could
damage the vehicle.
Driving on Hilly or Sloping Terrain
Although natural obstacles may make it
necessary to travel diagonally up or down a
hill or steep incline, you should always try to
drive straight up or straight down.
When climbing a steep slope or hill, start in
a lower gear rather than downshifting to a
lower gear from a higher gear once the
ascent has started. This reduces strain on
the engine and the possibility of stalling.
If your vehicle stalls, do not try to turn around
because this could cause vehicle roll over.
It is better to reverse back to a safe location. Apply just enough power to the wheels to
climb the hill. Too much power causes the
tires to slip, spin or lose traction, resulting in
loss of vehicle control.
Descend a hill in the same gear you would
use to climb up the hill to avoid excessive
brake application and brake overheating. Do
not descend in neutral. Disengage overdrive
or move the transmission selector lever to a
lower gear. When descending a steep hill,
avoid sudden hard braking as you could lose
control. The front wheels have to be turning
in order to steer your vehicle.
If your vehicle has anti-lock brakes, apply the
brakes steadily. Do not pump the brakes.
238
Navigator (TB9) Canada/United States of America, enUSA, First-Printing Four-Wheel Drive (If Equipped)E143949

Note:
Avoid driving crosswise or turning on
steep slopes or hills.
Note: Avoid turning on steep slopes or hills.
A danger lies in losing traction, slipping
sideways and possible vehicle roll over.
Whenever driving on a hill, determine
beforehand the route you will use. Do not
drive over the crest of a hill without seeing
what conditions are on the other side. Do
not drive in reverse over a hill without the
aid of an observer.
Driving on Snow and Ice WARNING: If you are driving in
slippery conditions that require tire chains
or cables, then it is critical that you drive
cautiously. Keep speeds down, allow for
longer stopping distances and avoid
aggressive steering to reduce the chances
of a loss of vehicle control which can lead
to serious injury or death. If the rear end
of your vehicle slides while cornering, steer
in the direction of the slide until you regain
control of your vehicle. Four-wheel drive vehicles have advantages
over two-wheel drive vehicles in snow and
ice but can skid like any other vehicle.
Should you start to slide when driving on
snowy or icy roads, turn the steering wheel
in the direction of the slide until you regain
control.
Avoid sudden applications of power and
quick changes of direction on snow and ice.
Apply the accelerator slowly and steadily
when starting from a full stop.
Avoid sudden braking. Although a four-wheel
drive vehicle may accelerate better than a
two-wheel drive vehicle in snow and ice, it
does not stop any faster as braking occurs
at all four wheels. Do not become
overconfident in any road condition.
Make sure you allow sufficient distance
between you and other vehicles for stopping.
Drive slower than usual and consider using
one of the lower gears. In emergency
stopping situations, apply the brake steadily.
Do not pump the brake pedal. See Hints on
Driving With Anti-Lock Brakes
(page 242).
Note: Excessive tire slippage can cause
transmission damage. Maintenance and Modifications
The suspension and steering systems on
your vehicle have been designed and tested
to provide predictable performance whether
loaded or empty. For this reason, we strongly
recommend that you do not make
modifications such as adding or removing
parts, for example, lift kits or stabilizer bars,
or by using replacement parts not equivalent
to the original factory equipment.
We recommend that you use caution when
your vehicle has either a high load or device
such as a ladder or luggage racks. Any
modifications to your vehicle that raise the
center of gravity could cause your vehicle to
roll over when there is a loss of vehicle
control.
Failure to maintain your vehicle correctly
could void the warranty, increase your repair
cost, reduce vehicle performance and
operational capabilities and adversely affect
you and your passenger's safety. We
recommend you frequently inspect your
vehicle's chassis components when your
vehicle is subject to off-road usage.
239
Navigator (TB9) Canada/United States of America, enUSA, First-Printing Four-Wheel Drive
(If Equipped)

LIMITED SLIP DIFFERENTIAL (IF
EQUIPPED)
The Electronic Limited Slip Differential (eLSD)
system directs torque, enabling the vehicle
to drive over terrain and road conditions that
a conventional axle cannot. The system is
active at all times and requires no input from
the driver.
Note: If your vehicle is not at optimal
operating conditions or a system fault is
present, a warning may be displayed in the
instrument cluster. Depending on the
warning, your vehicle may need to be
serviced. You can find more information
regarding the system information messages
in the Information Displays chapter.
See
Information Messages (page 139).
Spare Tire
If your vehicle has an Electronic Limited Slip
Differential, do not use a spare tire of a
different size than the tire provided. If a spare
tire is installed, a message may appear,
indicating the system has disabled
automatically or reduced function to prevent system overheat and damage. It is
recommended to reinstall the repaired or
replaced road tire as soon as possible. When
the road tire is replaced, the system will
resume normal operation on the next key
cycle.
Trailer Towing
The Electronic Limited Slip Differential
enhances vehicle stability during trailer tow
operation. During high demand trailering
events, such as steep slopes, high speeds
or with a spare tire, the system may provide
a warning in the instrument cluster and
reduce function or enter a temporarily
disabled state. To resume normal function,
stop the vehicle in a safe location and allow
the unit to adequately cool. Once the system
has reached normal operating temperatures,
system function will be restored and the
Electronic Limited Slip Differential Restored
message will be displayed.
240
Navigator (TB9) Canada/United States of America, enUSA, First-Printing Rear Axle

GENERAL INFORMATION
Note:
Occasional brake noise is normal. If
a metal-to-metal, continuous grinding or
continuous squeal sound is present, the
brake linings could be worn-out, you should
have them checked. If the vehicle has
continuous vibration or shudder in the
steering wheel while braking, you should
have the system checked.
Note: Brake dust may accumulate on the
wheels, even under normal driving
conditions. Some dust is inevitable as the
brakes wear and does not contribute to
brake noise. See Cleaning the Wheels
(page 403). See
Warning Lamps and
Indicators (page 129).
Wet brakes result in reduced braking
efficiency. Gently press the brake pedal a
few times when driving from a car wash or
standing water to dry the brakes. Brake Over Accelerator
In the event the accelerator pedal becomes
stuck or entrapped, apply steady and firm
pressure to the brake pedal to slow the
vehicle and reduce engine power. If you
experience this condition, apply the brakes
and bring your vehicle to a safe stop. Switch
the engine off, move the transmission to park
(P) and apply the parking brake. Inspect the
accelerator pedal and the area around it for
any items or debris that may be obstructing
its movement. If none are found and the
condition persists, do not drive your vehicle.
Have your vehicle towed to the location you
are having it checked.
Emergency Brake Assist
Emergency brake assist detects when you
brake heavily by measuring the rate at which
you press the brake pedal. It provides
maximum braking efficiency as long as you
press the pedal. Emergency brake assist
can reduce stopping distances in critical
situations.Anti-lock Brake System
This system helps you maintain steering
control during emergency stops by keeping
the brakes from locking. This lamp momentarily illuminates
when you switch the ignition on.
If the light does not illuminate
during start up, remains on or flashes, the
anti-lock braking system may be disabled.
Have the system checked. If the anti-lock
brake system is disabled, normal braking is
still effective. If the brake warning lamp
illuminates with the parking brake
released, have your brake system
serviced immediately.
It also illuminates momentarily when you
switch the ignition on to confirm the lamp is
functional. If it does not illuminate when you
switch the ignition on, or begins to flash at
any time, have the system checked.
241
Navigator (TB9) Canada/United States of America, enUSA, First-Printing BrakesE138644 E138644

HINTS ON DRIVING WITH ANTI-
LOCK BRAKES
The anti-lock braking system does not
eliminate the risks when:
•
You drive too closely to the vehicle in
front of you.
• Your vehicle is hydroplaning.
• You take corners too fast.
• The road surface is poor.
Note: If the system activates, the brake
pedal may pulse and may travel further.
Maintain pressure on the brake pedal. You
may also hear a noise from the system. This
is normal.
ELECTRIC PARKING BRAKE WARNING: Always fully apply the
parking brake and make sure you shift into
park (P). Failure to follow this instruction
could result in personal injury or death. WARNING:
If you drive extended
distances with the parking brake applied,
you could cause damage to the brake
system. WARNING:
The electric parking
brake does not operate if the vehicle
battery is running out of charge.
Your vehicle has an electric parking brake.
You operate it with a switch instead of a
lever. The switch is on the center console or
to the left-hand side of the steering wheel,
on the lower part of the instrument panel.
Note: The electric parking brake makes
noises during operation. This is normal.
Applying the Electric Parking Brake Pull the switch upward.
The red warning lamp flashes
during operation and illuminates
when the parking brake is applied. Note:
It remains illuminated for a short
period of time after you switch the ignition
off.
If it continues to flash or does not illuminate,
the system has malfunctioned. Have your
vehicle checked as soon as possible.
Note: You can apply the electric parking
brake when the ignition is off.
Note: The electric parking brake could
automatically apply when you shift into park
(P).
See Transmission (page 227).
Applying the Electric Parking Brake in an
Emergency
Note: Do not apply the electric parking brake
when your vehicle is moving, except in an
emergency. If you repeatedly use the electric
parking brake to slow or stop your vehicle,
you could cause damage to the brake
system.
You can use the electric parking brake to
slow or stop your vehicle in an emergency.
242
Navigator (TB9) Canada/United States of America, enUSA, First-Printing BrakesE267156 E270480

Pull the switch upward and hold it.
The red warning lamp illuminates,
a tone sounds and the stoplamps
turn on.
The electric parking brake continues to slow
your vehicle down unless you release the
switch.
Manually Releasing the Electric Parking
Brake
Switch the ignition on.
Press and hold the brake pedal.
Push the switch downward.
The red warning lamp turns off. If it remains illuminated or flashes, the system
has malfunctioned. Have your vehicle
checked as soon as possible.
Pulling Away on a Hill When Towing a
Trailer
Press and hold the brake pedal.
Pull the switch upward and hold it.
Shift into gear.
Press the accelerator pedal until engine has
developed sufficient torque to prevent your
vehicle from rolling down the hill. Release the switch and pull away
in a normal manner.
Automatically Releasing the Electric
Parking Brake
Close the driver door.
Shift into gear. Press the accelerator pedal and pull away in
a normal manner. The red warning lamp turns off.
If it remains illuminated or flashes, the electric
parking brake has not released. Manually
release the parking brake.
Releasing the Electric Parking Brake if
the Vehicle Battery is Running Out of
Charge
Connect a booster battery to the vehicle
battery to release the electric parking brake
if the vehicle battery is running out of charge.
See Jump Starting the Vehicle (page 346).
243
Navigator (TB9) Canada/United States of America, enUSA, First-Printing BrakesE267156 E270480 E267156 E270480 E267156 E267156 E270480

HILL START ASSIST
WARNING: The system does not
replace the parking brake. When you leave
your vehicle, always apply the parking
brake and shift the transmission into park
(P) for automatic transmission or first gear
for manual transmission. WARNING: You must remain in your
vehicle when the system turns on. At all
times, you are responsible for controlling
your vehicle, supervising the system and
intervening, if required. Failure to take care
may result in the loss of control of your
vehicle, serious personal injury or death.
Note: If the engine is revved excessively, or
if a malfunction is detected, the system will
be deactivated.
The system makes it easier to pull away
when your vehicle is on a slope without the
need to use the parking brake. When the system is active, your vehicle will
remain stationary on the slope for two to
three seconds after you release the brake
pedal. This allows you time to move your
foot from the brake to the accelerator pedal.
The brakes release automatically when the
engine has sufficient torque to prevent your
vehicle from rolling down the grade. This is
an advantage when pulling away on a slope,
for example from a car park ramp, traffic
lights or when reversing uphill into a parking
space.
The system will activate automatically on any
slope that will cause significant vehicle
rollback. For vehicles with a manual
transmission, you can switch this feature off
using the information display.
See
Information Displays (page 134). The system
will remain on or off depending on how it
was last set.
Note: There is no warning lamp to indicate
the system is either on or off.
Note: If your vehicle is equipped with Auto
Hold, Hill Start Assist will not be available
while Auto Hold is active. Using Hill Start Assist
1. Bring your vehicle to a complete
standstill. Keep the brake pedal pressed
and select an uphill gear (for example,
drive (D) or first (1) when facing uphill or
reverse (R) when facing downhill).
2. If the sensors detect that your vehicle is on a slope, the system will activate
automatically.
3. When you remove your foot from the brake pedal, your vehicle will remain on
the slope without rolling away for about
two or three seconds. This hold time will
automatically be extended if you are in
the process of driving off.
4. Drive off in the normal manner. The brakes will release automatically.
Switching the System On and Off
You can switch this feature on or off if your
vehicle is equipped with a manual
transmission and an information display. See
General Information (page 134). The system
remembers the last setting when you start
your vehicle.
244
Navigator (TB9) Canada/United States of America, enUSA, First-Printing Brakes

If your vehicle is not equipped with a manual
transmission and an information display, you
cannot turn the system on or off. When you
switch the ignition on, the system
automatically turns on.
AUTO HOLD
WARNING: The system does not
replace the parking brake. When you leave
your vehicle, always apply the parking
brake. WARNING: You must remain in your
vehicle when the system turns on. At all
times, you are responsible for controlling
your vehicle, supervising the system and
intervening, if required. Failure to take care
may result in the loss of control of your
vehicle, serious personal injury or death. WARNING:
The system will turn off
if a malfunction is apparent. Failure to take
care may result in the loss of control of
your vehicle, serious personal injury or
death. The system uses your vehicle's brakes to
hold your vehicle at a standstill after you stop
your vehicle and release the brake pedal.
For example, Auto Hold can assist you while
stopping at traffic lights or while in traffic
jams by holding the brake pressure for you
once you bring your vehicle to a stop.
Make sure you switch the system off before
towing with your vehicle.
Note:
In case of a malfunction in the system
while Auto Hold actively holds the vehicle
(for example, low power supply), a message
appears in the information display asking
you to press the brake pedal. If you see this
message, press the brake pedal
immediately.
Note: The system only activates if it
recognizes it is applying enough brake
pressure. On a steep hill or slope, make sure
you press the brake pedal sufficiently to
activate the system. Note:
In some cases, Auto Hold might hand
over to the parking brake. When the parking
brake applies, the red brake lamp appears.
This is normal. When you press the
accelerator pedal, the drive away release
feature releases the parking brake.
Note: Auto Hold works on all road grades. Press the button to switch the system on and
off. The indicator light illuminates when you
switch the system on.
Note:
You can only switch the system on if
you close the door and fasten your seatbelt.
Note: The system turns off every time you
power down your vehicle.
245
Navigator (TB9) Canada/United States of America, enUSA, First-Printing BrakesE256165

Note:
The system remembers the last setting
when you start your vehicle.
Note: When in reverse (R), Auto Hold does
not function.
When the system is off, your vehicle behaves
the same as a vehicle without Auto Hold.
There is an indicator lamp in the instrument
cluster that has two modes, active and
unavailable: The auto hold active indicator
illuminates in the information
display when the system holds
your vehicle stationary. When in active mode,
press the brake pedal and the Auto Hold
button to switch the system off. The auto hold unavailable indicator
illuminates in the information
display when the system is on but
unavailable to hold your vehicle (for example,
during Active Park Assist, Stay in Neutral
Mode, or when you do not fasten your
seatbelt or close the door). Note:
Make sure you switch off Auto Hold
or use the Stay in Neutral mode before you
enter a car wash. See Automatic
Transmission (page 227).
Using Auto Hold
1. Use the brakes to bring your vehicle to a complete stop. The auto hold active
indicator illuminates in the information
display.
2. Release the brake pedal. The system holds your vehicle at a standstill. The
auto hold active indicator remains
illuminated in the information display.
3. When you press the accelerator pedal, the system releases the brakes and you
will be able to drive off. Once you drive
off, the auto hold active indicator no
longer illuminates in the information
display.
Note: The auto-start-stop system (if
equipped) may stop the engine when you
press the brake pedal. If this occurs, it
restarts once you press the accelerator
pedal. Auto Hold still holds your vehicle at
a standstill with the engine off.
246
Navigator (TB9) Canada/United States of America, enUSA, First-Printing BrakesE197933 E197934

PRINCIPLE OF OPERATION
The traction control system helps avoid drive
wheel spin and loss of traction.
If your vehicle begins to slide, the system
applies the brakes to individual wheels and,
when needed, reduces engine power at the
same time. If the wheels spin when
accelerating on slippery or loose surfaces,
the system reduces engine power in order
to increase traction.
USING TRACTION CONTROL
WARNING: The stability and traction
control light illuminates steadily if the
system detects a failure. Make sure you
did not manually disable the traction
control system using the information
display controls or the switch. If the stability
control and traction control light is still illuminating steadily, have the system
serviced by an authorized dealer
immediately. Operating your vehicle with
the traction control disabled could lead to
an increased risk of loss of vehicle control,
vehicle rollover, personal injury and death.
The system automatically turns on each time
you switch the ignition on.
If your vehicle is stuck in mud or snow,
switching traction control off may be
beneficial 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 off
through the information display controls. See
General Information
(page 134).
When you switch the system off, a message
and an illuminated icon appear on the
instrument cluster.
Switch traction control on again to return the
system to normal operations. Note:
Your vehicle may have MyKey
restrictions regarding this feature.
See
Principle of Operation (page 79).
System Indicator Lights and Messages The stability and traction control
light temporarily illuminates on
engine start-up and flashes:
• When a driving condition activates either
of the systems.
• If a problem occurs in either of the
systems. The stability and traction control
off light temporarily illuminates on
engine start-up and stays on when
you switch the traction control system off.
247
Navigator (TB9) Canada/United States of America, enUSA, First-Printing Traction ControlE138639 E130458