
GENERAL INFORMATION
Note:Occasional brake noise is normal. If a metal-to-metal, continuous
grinding or continuous squeal sound is present, the brake linings may be
worn out. Have them inspected by an authorized dealer. If your vehicle
has continuous vibration or shudder in the steering wheel while braking,
have your vehicle inspected by an authorized dealer.
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 the Vehicle Carechapter for wheel
cleaning instructions.
See theInstrument Cluster chapter for information on the
brake system warning light.
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 your vehicle and
reduce engine power. If you experience this condition, apply the brakes
and bring your vehicle to a safe stop. Turn the engine off, shift 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, have your
vehicle towed to the nearest authorized dealer.
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 turn the ignition
on. If the light does not illuminate during start-up, remains on
or flashes, the anti-lock brake system may be disabled. Have
the system checked by an authorized dealer. If the anti-lock brake
system is disabled, normal braking is still effective.
If the brake warning lamp illuminates when you release the
parking brake, have the system checked by an authorized
dealer.
Brakes 187
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)

System Errors
If either system senses a problem with the left or right sensor, the
BLIS® indicator in the information display will illuminate and remain on.
Also,BLIND SPOT SYSTEM FAULT orCROSS TRAFFIC SYSTEM
FAULT message will appear. When problems that may cause the left or
right indicator not to illuminate, only the information display message
faults appear.
Switching the Systems Off and On
One or both systems can be switched off temporarily by using the
information display control; refer to the Information Displaychapter.
When you switch off the Blind Spot Information System, you will not
receive alerts and the information display will display a system off
message. The yellow alert indicator in the outside mirror will also flash
twice. The system switches back on whenever you switch the ignition on.
You can also have one or both systems switched off permanently at an
authorized dealer. Once switched off, the system can only be switched
back on at an authorized dealer.
STEERING
Electric Power Steering
WARNING: The electric power steering system has diagnostic
checks that continuously monitor the system to ensure proper
operation. When a system error is detected a steering message will
appear in the information display.
WARNING: The electric power steering system has diagnostic
checks that continuously monitor the system to ensure proper
operation of the electronic system. When an electronic error is
detected, a message will be displayed in the information display. If this
happens, stop the vehicle in a safe place, and turn off the engine. After
at least 10 seconds, reset the system by restarting the engine, and
watch the information display for a steering message. If a steering
message returns, or returns while driving, take the vehicle to your
dealer to have it checked.
210 Driving Aids
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)

WARNING:Obtain immediate service if a system error is
detected. You may not notice any difference in the feel of your
steering, but a serious condition may exist. Failure to do so may result
in loss of steering control.
Your vehicle is equipped with an electric power-assisted steering system.
There is no fluid reservoir to check or fill.
If your vehicle loses electrical power while you are driving (or if the
ignition is turned off), you can steer the vehicle manually, but it takes
more effort. Extreme continuous steering may increase the effort it takes
for you to steer. This occurs to prevent internal overheating and
permanent damage to your steering system. If this should occur, you will
neither lose the ability to steer the vehicle manually nor will it cause
permanent damage. Typical steering and driving maneuvers will allow the
system to cool and steering assist will return to normal.
When a steering system error is detected, steering messages may appear
in the information display.
Steering Tips
If the steering wanders or pulls, check for:
• an improperly inflated tire
• uneven tire wear
• loose or worn suspension components
• loose or worn steering components
• improper vehicle alignment
A high crown in the road or high crosswinds may also make the steering
seem to wander/pull.
Driving Aids 211
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)

TOWING THE VEHICLE ON FOUR WHEELS
Emergency Towing
WARNING:If your vehicle has a steering wheel lock, make sure
the ignition is in the accessory or on position when being towed.
If your vehicle becomes inoperable (without access to wheel dollies,
car-hauling trailer, or flatbed transport vehicle), it can be flat-towed (all
wheels on the ground, regardless of the powertrain and transmission
configuration) under the following conditions:
• Your vehicle is facing forward for towing in a forward direction.
• Place the transmission in position N.See Automatic transmission in
the Transmission chapter if you cannot move the transmission into
N.
• Maximum speed is 35 mph (56 km/h).
• Maximum distance is 50 miles (80 kilometers).
Recreational Towing
Note: Put your climate control system in recirculated air mode to
prevent exhaust fumes from entering your vehicle. See the Climate
Control chapter.
Follow these guidelines if you have a need for recreational towing, such
as towing your vehicle behind a motorhome. We designed these
guidelines to prevent damage to your transmission.
Do not tow your vehicle with any wheels on the ground, as vehicle or
transmission damage may occur. It is recommended to tow your vehicle
with all four (4) wheels off the ground, such as when using a car-hauling
trailer. Otherwise, you cannot tow your vehicle.
236 Towing
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)

•Add particular accessories to your vehicle (e.g.; bug deflectors,
rollbars or light bars, running boards, ski racks).
• Drive with the wheels out of alignment.
DRIVING THROUGH WATER
WARNING: Do not drive through flowing or deep water as you
may lose control of your vehicle.
Note: Driving through standing water can cause vehicle damage.
Note: Engine damage can occur if water enters the air filter.
Before driving through standing water, check the depth. Never drive through water that is higher than the bottom
of the wheel hubs.
When driving through standing water, drive
very slowly and do not stop your vehicle. Your
brake performance and traction may be
limited. After driving through water and as
soon as it is safe to do so:
•Lightly press the brake pedal to dry the
brakes and to check that they work.
• Check that the horn works.
• Check that the exterior lights work.
• Turn the steering wheel to check that the steering power assist works.
FLOOR MATS
WARNING: Always use floor mats that are designed to fit the
foot well of your vehicle. Only use floor mats that leave the pedal
area unobstructed. Only use floor mats that are firmly secured to
retention posts so that they cannot slip out of position and interfere
with the pedals or impair safe operation of your vehicle in other ways.
WARNING: Pedals that cannot move freely can cause loss of
vehicle control and increase the risk of serious personal injury.
238 Driving Hints
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)

Fuse or relaylocation Fuse amp
rating Protected circuits
46 15A* Front/rear washer pump
47 30A** Rear wiper motor
48 40A** Trailer tow module
49 — Not used
50 30A** Front wiper motor relay
51 40A** Rear window defroster and heated mirror relay
52 10A* Anti-lock brake system run/start feed
53 5A* Powertrain control module ISP
54 5A* Power steering
55 15A* Headlamp control module
56 30A* Passenger compartment fuse panel run/start feed
57 5A* Blower motor run/start
58 — Not used
59 15A* Heated mirrors
60 — Not used
61 — Not used
62 — Not used
63 25A** Electronic fan
64 30A** Moonroof
65 20A** Auxiliary power point (instrument panel valance panel)
66 20A** Auxiliary power point (rear of center console)
67 40A** Front row climate controlled seats
68 30A** Anti-lock brake system valves
69 60A** Anti-lock brake system pump
70 30A** Third row power fold seat
258 Fuses
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)

If you drive in extremely hot climates:
•It may be necessary to have a Ford authorized dealer decrease the
coolant concentration to 40%.
• A coolant concentration of 40% will provide improved overheat
protection. Engine coolant concentrations below 40% will decrease the
corrosion/freeze protection characteristics of the engine coolant and
may cause engine damage.
Vehicles driven year-round in non-extreme climates should use
prediluted engine coolant for optimum cooling system and engine
protection.
What You Should Know About Fail-Safe Cooling
If the engine coolant supply is depleted, this feature allows the vehicle to
be driven temporarily before incremental component damage is incurred.
The fail-safe distance depends on ambient temperatures, vehicle load and
terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat, the engine coolant temperature gauge
will move to the red (hot) area and: The coolant temperature warning light will illuminate.
The service engine soon indicator will illuminate.
If the engine reaches a preset over-temperature condition, the engine
will automatically switch to alternating cylinder operation. Each disabled
cylinder acts as an air pump and cools the engine.
When this occurs the vehicle will still operate. However:
• The engine power will be limited.
• The air conditioning system will be disabled.
Continued operation will increase the engine temperature and the engine
will completely shut down, causing steering and braking effort to
increase.
Once the engine temperature cools, the engine can be restarted. Take
your vehicle to an authorized dealer as soon as possible to minimize
engine damage.
270 Maintenance
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)

When Fail-Safe Mode is Activated
WARNING:Fail-safe mode is for use during emergencies only.
Operate the vehicle in fail-safe mode only as long as necessary to
bring the vehicle to rest in a safe location and seek immediate repairs.
When in fail-safe mode, the vehicle will have limited power, will not be
able to maintain high-speed operation, and may completely shut down
without warning, potentially losing engine power, power steering assist,
and power brake assist, which may increase the possibility of a crash
resulting in serious injury.
WARNING: Never remove the coolant reservoir cap while the
engine is running or hot.
You have limited engine power when in the fail-safe mode, so drive the
vehicle with caution. The vehicle will not be able to maintain high-speed
operation and the engine will run rough. Remember that the engine is
capable of completely shutting down automatically to prevent engine
damage, therefore:
1. Pull off the road as soon as safely possible and turn off the engine.
2. Arrange for the vehicle to be taken to an authorized dealer.
3. If this is not possible, wait a short period for the engine to cool.
4. Check the coolant level and replenish if low.
5. Restart the engine and take your vehicle to an authorized dealer.
Note: Driving the vehicle without repairing the engine problem increases
the chance of engine damage. Take your vehicle to an authorized dealer
as soon as possible.
AUTOMATIC TRANSMISSION FLUID CHECK
Note: Transmission fluid should be checked by an authorized dealer. If
required, fluid should be added by an authorized dealer.
The automatic transmission does not have a transmission fluid dipstick.
Refer to your scheduled maintenance information for scheduled
intervals for fluid checks and changes. Your transmission does not
consume fluid. However, the fluid level should be checked if the
transmission is not working properly, (i.e., if the transmission slips or
shifts slowly) or if you notice some sign of fluid leakage.
Maintenance 271
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)