2017 LINCOLN NAVIGATOR Owners Manual

USING FOUR-WHEEL DRIVE
WARNING
For important information regarding
safe operation of this type of vehicle,
see General Information in the Wheels and
Tires chapter. Note:
Do not use 4X4 mode on dry, hard
surfaced roads. Doing so will produce
excessive noise, increase tire wear and may
damage drive components. 4X4 mode is
only intended for consistently slippery or
loose surfaces.
Your four-wheel drive vehicle features the
heavy-duty Control Trac® 4WD system. This
unique system is interactive with the road,
continually monitoring and adjusting torque
delivery to the front and rear wheels to
optimize vehicle control. 4WD Indicator Lights
The indicator lights illuminate in the
information display in the reconfigurable
telltale (RTT) location under the following
conditions. See Warning Lamps and
Indicators (page 98).
Note: When a 4X4 system fault is present,
the system will typically remain in whichever
4X4 mode was selected prior to the fault
condition occurring. It will not default to 4X2
in all circumstances. When this warning is
displayed, have your vehicle serviced by an
authorized dealer.
4X2 Momentarily illuminates when 4X2
is selected.
4X4 AUTO Continuously illuminates when 4X4
AUTO is selected.4X4 Continuously illuminates when 4X4
is selected.
CHECK 4X4 Displays when a 4X4 fault is
present.
4WD Switch Positions WARNING
Utility and four-wheel drive vehicles
are not designed for cornering at
speeds as high as passenger cars any more
than low-slung sports cars are designed to
perform satisfactorily under off-road
conditions. Avoid sharp turns or abrupt
maneuvers in these vehicles. 174
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Note:
The AdvanceTrac® with RSC® stability
enhancement system can be turned off
manually by pressing the AdvanceTrac
button. See Using Traction Control (page
185). This will disable the engine
management feature, allowing the vehicle
to maintain full power and enhanced
momentum through the obstacle.
Note: The Control Trac® selector switch
should not be changed while the rear wheels
are slipping. The Control Trac® system functions in three
modes:
•
4X2
delivers power to the rear wheels
only. The information display will
momentarily display 4x2 when this mode
is selected. This mode is appropriate for
normal on-road driving on dry pavement
and provides the best fuel economy.
• 4X4 AUTO
provides electronic control
four-wheel drive with power delivered to
all four wheels, as required, for increased
traction. The information display will
display 4A when this mode is selected.
This mode is appropriate for all on-road
driving conditions, such as dry road
surfaces, wet pavement, snow, or gravel.
• 4X4
provides electronically locked
four-wheel drive power to front and rear
wheels. The information display will
display 4X4 when this mode is selected.
This mode is not recommended for use
on dry pavement. This mode is only
intended for severe winter or off-road
conditions, such as deep snow, ice or
shallow sand. Shifting between system modes
Note:
Momentarily releasing the accelerator
pedal while a shift in progress message
displays will improve
engagement/disengagement performance.
Note: Do not perform this operation if the
rear wheels are slipping.
Note: Some noise may be heard as the
system shifts or engages; this is normal.
Press any button (4X2, 4X4 AUTO or 4X4) at
a stop or while driving. The information
display may display a message indicating a
4X4 shift is in progress. Once the shift is
complete the information display will then
display the system mode selected.
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How Your Vehicle Differs From Other
Vehicles
WARNING
Vehicles with a higher center of gravity
such as utility and four-wheel drive
vehicles handle differently than vehicles with
a lower center of gravity. Utility and
four-wheel drive vehicles are not designed
for cornering at speeds as high as passenger
cars any more than low-slung sports cars are
designed to perform satisfactorily under
off-road conditions. Avoid sharp turns,
excessive speed and abrupt maneuvers in
these vehicles. Failure to drive cautiously
could result in an increased risk of loss of
vehicle control, vehicle rollover, personal
injury and death. Truck and utility vehicles can differ from
some other vehicles. Your vehicle may be
higher to allow it to travel over rough terrain
without getting hung up or damaging
underbody components.
The differences that make your vehicle so
versatile also make it handle differently than
an ordinary passenger car. Maintain steering wheel control at all times,
especially in rough terrain. Since sudden
changes in terrain can result in abrupt
steering wheel motion, make sure you grip
the steering wheel from the outside. Do not
grip the spokes.
Drive cautiously to avoid vehicle damage
from concealed objects such as rocks and
stumps.
You should either know the terrain or
examine maps of the area before driving.
Map out your route before driving in the area.
To maintain steering and braking control of
your vehicle, you must have all four wheels
on the ground and they must be rolling, not
sliding or spinning.
Driving Off-Road With Truck and Utility
Vehicles
Note:
On some models, the initial shift from
two-wheel drive to four-wheel drive while
the vehicle is moving can cause some
momentary clunk and ratcheting sounds.
This is the front drivetrain coming up to
speed and the automatic locking hubs
engaging and is not cause for concern. Note:
Your vehicle may be equipped with a
front air dam that can become damaged
(due to reduced ground clearance) when
taking your vehicle off-road. This air dam
can be taken off by removing two bolts.
Four-wheel drive vehicles are specially
equipped for driving on sand, snow, mud and
rough terrain and have operating
characteristics that are somewhat different
from conventional vehicles, both on and off
the road.
Power is supplied to all four wheels through
a transfer case. On Four-wheel drive
vehicles, the transfer case allows you to
select different 4WD modes when necessary.
Information on transfer case operation and
shifting procedures can be found in this
chapter. Information on transfer case
maintenance can be found in the
Maintenance chapter. You should become
thoroughly familiar with this information
before you operate your vehicle.
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Four-wheel drive (when you select a 4WD
mode) uses all four wheels to power the
vehicle. This increases traction, enabling you
to drive over terrain and road conditions that
a conventional two-wheel drive vehicle
cannot.
Basic Operating Principles
•
Do not use 4X4 mode on dry, hard
surfaced roads. Doing so will produce
excessive noise, increase tire wear and
may damage drive components. 4X4
mode is only intended for consistently
slippery or loose surfaces.
• Drive slower in strong crosswinds which
can affect the normal steering
characteristics of your vehicle.
• When driving your vehicle on surfaces
made slippery by loose sand, water,
gravel, snow or ice proceed with care. If Your Vehicle leaves the Road
If your vehicle leaves the road, reduce your
vehicle speed and avoid severe braking.
When your vehicle speed has been reduced
ease your vehicle back onto the road. Do
not turn the steering wheel sharply while
returning your vehicle to the road.
It may be safer to stay on the shoulder of the
road and slow down gradually before
returning to the road. You may lose control
if you do not slow down or if you turn the
steering wheel too sharply or abruptly.
It may be less risky to strike small objects,
such as freeway reflectors, with minor
damage to your vehicle rather than attempt
a sudden return to the road which could
cause your vehicle to slide sideways out of
control or roll over. Remember, your safety
and the safety of others should be your
primary concern. If your vehicle gets stuck WARNING
Do not spin the wheels at over 35 mph
(56 km/h). The tires may fail and injure
a passenger or bystander. Note:
Do not rock your vehicle if the engine
is not at normal operating temperature,
damage to the transmission may occur.
Note: Do not rock your vehicle for more than
a minute, damage to the transmission and
tires may occur or the engine may overheat.
If your vehicle gets stuck in mud or snow it
may be rocked out by shifting between
forward and reverse gears, stopping
between shifts, in a steady pattern. Press
lightly on the accelerator in each gear.
Emergency Maneuvers
In an unavoidable emergency situation
where a sudden sharp turn must be made,
remember to avoid over-driving your vehicle
(i.e. turn the steering wheel only as rapidly
and as far as required to avoid the
emergency). Excessive steering can result
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in loss of vehicle control. Apply smooth
pressure to the accelerator pedal or brake
pedal when changes in vehicle speed are
required. Avoid abrupt steering, acceleration
and braking. This could result in an increased
risk of vehicle roll over, loss of vehicle control
and personal injury. Use all available road
surface to bring your vehicle to a safe
direction of travel.
In the event of an emergency stop, avoid
skidding the tires and do not attempt any
sharp steering wheel movements.
If your vehicle goes from one type of surface
to another (i.e. from concrete to gravel) there
will be a change in the way your vehicle
responds to a maneuver (i.e. steering,
acceleration or braking).
Sand
When driving over sand, try to keep all four
wheels on the most solid area of the trail.
Avoid reducing the tire pressures but shift
to a lower gear and drive steadily through
the terrain. Apply the accelerator slowly and
avoid excessive wheel slip.
Avoid driving at excessive speeds, this
causes vehicle momentum to work against
you and your vehicle could become stuck to
the point that assistance may be required
from another vehicle. Remember, you may
be able to back out the way you came if you
proceed with caution.
Mud and Water
Note:
Driving through deep water may
damage the vehicle.
If you must drive through high water, drive
slowly. Traction or brake capability may 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 while moving slowly. Be cautious of sudden changes in vehicle
speed or direction when you are driving in
mud. Even 4WD 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.
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“Tread Lightly” is an educational program
designed to increase public awareness of
land-use regulations and responsibilities in
our nations wilderness areas. Ford Motor
Company joins the U.S. Forest Service and
the Bureau of Land Management in
encouraging you to help preserve our
national forest and other public and private
lands by “treading lightly”
.
Driving on Hilly or Sloping Terrain
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.
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 will cause 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.
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. 179
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Note:
Excessive tire slippage can cause
transmission damage.
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 while 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
will 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 182). 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 (i.e. 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
(i.e. ladder or luggage racks). Any
modifications to your vehicle that raise the
center of gravity may cause your vehicle to
roll over when there is a loss of vehicle
control.
Failure to maintain your vehicle correctly may
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.
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LIMITED SLIP DIFFERENTIAL
This axle provides added traction on slippery
surfaces, particularly when one wheel is on
a poor traction surface. Under normal
conditions, the limited-slip axle functions like
a standard rear axle. The axle may exhibit a
slight noise or vibration during tight turns
with low vehicle speed. This is normal
behavior and indicates the axle is working.
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