Reasons for messages being displayed
The radar surface is
dirty or obstructed Clean the fascia area in front of the radar or
remove the obstruction.
The radar surface is
not dirty or obstructed Drive normally in traffic for a few minutes to
allow the radar to detect passing vehicles so it
can clear the blocked state.
Heavy rainfall/snowfall
interferes with the
radar signals No action required. The system automatically
resets to an unblocked state once the
rainfall/snowfall rate decreases or stops. Do
not use BLIS® and/or CTA in these conditions.
System Limitations
The BLIS® and CTA systems do have their limitations; situations such as
severe weather conditions or debris build-up on the sensor area may
limit vehicle detection.
The following are other situations that may limit the BLIS®:
• Certain maneuvering of vehicles entering and exiting the blind zone.
• Vehicles passing through the blind zone at very fast rates.
• When several vehicles forming a convoy pass through the blind zone.
The following are other situations that may limit the CTA system:
• Adjacently parked vehicles or objects obstructing the sensors.
• Approaching vehicles passing at speeds greater than 15 mph
(24 km/h).
• Driving in reverse faster than 3 mph (5 km/h).
• Backing out of an angled parking spot.
False Alerts
Note: If you connected a trailer to your vehicle the BLIS® system may
detect the trailer causing a false alert. To avoid false alerts you may want
to turn the BLIS off manually.
There may be certain instances when either the BLIS® or CTA systems
illuminate the alert indicator with no vehicle in the coverage zone; this is
known as a false alert. Some amount of false alerts are normal; they are
temporary and self-correct.
Driving Aids 209
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)
Manual Power Deploy
To manually operate the running boards, refer to theInformation
Displays chapter.
• This feature can manually set the running boards in the deployed
(OUT) position for access to the roof.
• When running boards are manually set in the deployed position, they
will return to the stowed position and enter automatic mode when the
vehicle speed exceeds 5 mph (8 km/h).
Enable and Disable
To enable and disable the power running board feature, refer to the
Information Displays chapter.
• When this feature is disabled (OFF), the running boards will move to
the stowed position regardless of the position of the doors.
• When this feature is enabled (AUTO), the running boards will move
back to the correct positions based off of the door positions.
Bounce-Back
If an object is in the way of the moving running board, it will reverse
direction and move to the end of travel.
Load Carrying 223
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)
TRAILER SWAY CONTROL
WARNING:Turning off trailer sway control increases the risk of
loss of vehicle control, serious injury or death. Ford does not
recommend disabling this feature except in situations where speed
reduction may be detrimental (such as hill climbing), the driver has
significant trailer towing experience, and can control trailer sway and
maintain safe operation.
Note: This feature does not prevent trailer sway, but reduces it once it
begins.
Note: This feature cannot stop all trailers from swaying.
Note: In some cases, if vehicle speed is too high, the system may turn
on multiple times, gradually reducing vehicle speed.
This feature applies your vehicle brakes at individual wheels and, if
necessary, reduces engine power. If the trailer begins to sway, the
stability control light flashes and the message TRAILER SWAY
REDUCE SPEED appears in the information display. The first thing to
do is slow your vehicle down, then pull safely to the side of the road and
check for proper tongue load and trailer load distribution. See the Load
Carrying chapter for specific loading information.
RECOMMENDED TOWING WEIGHTS
Note: Do not exceed the trailer weight for your vehicle configuration
listed in the chart below.
Note: Make sure to take into consideration trailer frontal area. Do not
exceed:
• 36.5 feet
2(3.39 meters2) trailer frontal area for vehicles equipped
with the standard towing package.
• 60.0 feet
2(5.57 meters2) trailer frontal area for vehicles equipped
with the optional Heavy Duty package.
Note: Exceeding this limitation may significantly reduce the
performance of your towing vehicle. Selecting a trailer with a low
aerodynamic drag and rounded front design helps optimize performance
and fuel economy.
Note: For high altitude operation, reduce the gross combined weight by
2% per 1000 feet (300 meters) starting at the 1000 foot (300 meter)
elevation point.
Towing 225
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)
•If your vehicle is equipped with Continuous Controlled Damping
Suspension (CCD Suspension), you can select NORMAL or SPORT
drive control modes for better experience while towing a trailer. See
the Information Displays chapter for details on selecting driving
modes.
• If you are towing a trailer frequently in hot weather, hilly conditions,
at the gross combined weight rating (or any combination of these
factors), consider refilling your rear axle with synthetic gear lubricant
(if the axle is not already filled with it). See the Capacities and
Specifications chapter for the lubricant specification.
• Allow more distance for stopping with a trailer attached. Anticipate
stops and brake gradually.
• Avoid parking on a grade. However, if you must park on a grade:
1. Turn the steering wheel to point your vehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the automatic transmission in position P.
4. Place wheel chocks in front and back of the trailer wheels. (Chocks not included with vehicle.)
Your vehicle may be equipped with a temporary or conventional spare
tire. A “temporary” spare tire is different in size (diameter or width),
tread-type (All-Season or All-Terrain) or is from a different manufacturer
than the road tires on your vehicle. Consult information on the tire label
or Safety Compliance label for limitations when using.
Launching or Retrieving a Boat or Personal Watercraft (PWC)
Note: Disconnect the wiring to the trailer beforebacking the trailer into
the water.
Note: Reconnect the wiring to the trailer afterremoving the trailer from
the water.
When backing down a ramp during boat launching or retrieval:
• Do not allow the static water level to rise above the bottom edge of
the rear bumper.
• Do not allow waves to break higher than 6 inches (15 centimeters)
above the bottom edge of the rear bumper.
Exceeding these limits may allow water to enter vehicle components:
• Causing internal damage to the components.
• Affecting driveability, emissions, and reliability.
Replace the rear axle lubricant anytime the rear axle submerges in
water. Water may have contaminated the rear axle lubricant, which does
not normally require checking or changing unless it is leaking or other
axle repair is required.
Towing 233
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)
The fuses are coded as follows:
Fuse or relaylocation Fuse amp
rating Protected circuits
1 30A Driver window
2 15A Rear seat control, multimedia gateway module
3 30A Passenger window
4 10A Demand lamps
5 20A Amplifier
6 5A Rear electronic automatic temperature control
7 7.5A Power mirror, driver seat memory switch
8 — Not used
9 10A SYNC, power lift gate, electric finish panel, display
10 10A Run accessory relay
11 10A Passive entry/start module
12 15A Interior lighting, puddle lamps
13 15A Right turn and stop/turn signals
14 15A Left turn and stop/turn signals
15 15A Reverse lamp, center high mount stop lamp, EC mirror
16 10A Right front low beam
17 10A Left front low beam
18 10A Brake shift interlock/start button LED/keypad illumination, third
row power folding seat, passive
entry touch start
19 20A Subwoofer amplifier, THX amplifier
20 20A Lock/unlock relays
21 — Not used
22 20A Horn
Fuses 261
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)
ItemCapacity Ford part name Ford part
number / Ford specification
A/C Refrigerant Compressor Oil
8
7 fl oz (207 ml) Motorcraft PAG
Refrigerant
Compressor Oil YN-12–D /
WSH-M1C231–B
1Ford recommends using Motorcraft (Ford) DOT 3 High Performance Motor Vehicle Brake Fluid
or equivalent meeting WSS-M6C65-A1. Use of any fluid other than the recommended fluid may
cause degraded brake performance and not meet the Ford performance standards. Keep brake
fluid clean and dry. Contamination with dirt, water, petroleum products or other materials may
result in brake system damage and possible failure.2Add the coolant type originally equipped in your vehicle.3Use of synthetic or synthetic blend motor oil is not mandatory. Only use fluid that meets Ford
specification. Motor oils of the recommended viscosity grade that meet API SN requirements and
display the API Certification Mark for gasoline engines are also acceptable. Do not use oil labeled
with API SN service category unless the label also displays the API Certification Mark.
An oil that displays the API Certification Mark conforms to current engine, emission system and
fuel economy performance standards of the International Lubricant Standardization and Approval
Committee (ILSAC).
Do not use supplemental engine oil additives in your engine. They are unnecessary and could
lead to engine damage that is not covered by your Ford warranty.4Automatic transmissions that require MERCON LV should only use MERCON LV fluid. Refer to
scheduled maintenance information to determine the correct service interval. Use of any fluid
other than the recommended fluid may cause transmission damage.5Indicates only approximate dry-fill capacity. Some applications may vary based on cooler size
and if equipped with an in-tank cooler.
Capacities and Specifications 331
2015 Navigator(nav)
Owners Guide gf, 2nd Printing, December 2014
USA (fus)