tow LINCOLN NAVIGATOR 2021 Repair Manual

operation at Gross Vehicle Weight
Rating, not at Gross Combined Weight
Rating.) Separate functional brakes
should be used for safe control of towed
vehicles and for trailers where the Gross
Combined Weight of the towing vehicle
plus the trailer exceed the Gross Vehicle
Weight Rating of the towing vehicle.
The gross combined weight must never
exceed the Gross Combined Weight
Rating.
Note:
For trailer towing information
refer to the RV and Trailer Towing Guide
available at an authorized dealer. WARNING: Do not exceed the
GVWR or the GAWR specified on the
certification label. WARNING:
Do not use
replacement tires with lower load
carrying capacities than the original
tires because they may lower your
vehicle's GVWR and GAWR limitations.
Replacement tires with a higher limit
than the original tires do not increase
the GVWR and GAWR limitations. WARNING:
Exceeding any
vehicle weight rating can adversely
affect the performance and handling
of your vehicle, cause vehicle damage
and can result in the loss of control of
your vehicle, serious personal injury
or death.
Steps for determining the correct load
limit:
1. Locate the statement "The combined
weight of occupants and cargo
should never exceed XXX kg or XXX
lb." on your vehicle ’s placard. 2.
Determine the combined weight of
the driver and passengers that will
be riding in your vehicle.
3. Subtract the combined weight of the
driver and passengers from XXX kg
or XXX lb.
4. The resulting figure equals the available amount of cargo and
luggage load capacity. For example,
if the “XXX” amount equals 1,400 lb.
and there will be five 150 lb.
passengers in your vehicle, the
amount of available cargo and
luggage load capacity is 650 lb.
(1400-750 (5 x 150) = 650 lb.)
5. Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not
safely exceed the available cargo
and luggage load capacity calculated
in Step 4.
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6.
If your vehicle will be towing a trailer,
load from your trailer will be
transferred to your vehicle. Consult
this manual to determine how this
reduces the available cargo and
luggage load capacity of your
vehicle.
Helpful examples for calculating the
available amount of cargo and
luggage load capacity
Suppose your vehicle has a 1400-pound
(635-kilogram) cargo and luggage
capacity. You decide to go golfing. Is
there enough load capacity to carry you,
four of your friends and all the golf bags?
You and four friends average 220
pounds (99 kilograms) each and the golf
bags weigh approximately 30 pounds
(13.5 kilograms) each. The calculation
would be: 1400 - (5 x 220) - (5 x 30) =
1400 - 1100 - 150 = 150 pounds. Yes, you have enough load capacity in your
vehicle to transport four friends and your
golf bags. In metric units, the calculation
would be: 635 kilograms - (5 x 99
kilograms) - (5 x 13.5 kilograms) = 635 -
495 - 67.5 = 72.5 kilograms.
Suppose your vehicle has a 1400-pound
(635-kilogram) cargo and luggage
capacity. You and one of your friends
decide to pick up cement from the local
home improvement store to finish that
patio you have been planning for the
past two years. Measuring the inside of
the vehicle with the rear seat folded
down, you have room for twelve
100-pound (45-kilogram) bags of
cement. Do you have enough load
capacity to transport the cement to your
home? If you and your friend each weigh
220 pounds (99 kilograms), the
calculation would be: 1400 - (2 x 220) -
(12 x 100) = 1400 - 440 - 1200 = - 240
pounds. No, you do not have enough
cargo capacity to carry that much
weight. In metric units, the calculation
would be: 635 kilograms - (2 x 99
kilograms) - (12 x 45 kilograms) = 635 -198 - 540 = -103 kilograms. You will need
to reduce the load weight by at least
240 pounds (104 kilograms). If you
remove three 100-pound (45-kilogram)
cement bags, then the load calculation
would be:1400 - (2 x 220) - (9 x 100) =
1400 - 440 - 900 = 60 pounds. Now you
have the load capacity to transport the
cement and your friend home. In metric
units, the calculation would be: 635
kilograms - (2 x 99 kilograms) - (9 x 45
kilograms) = 635 - 198 - 405 = 32
kilograms.
The above calculations also assume that
the loads are positioned in your vehicle
in a manner that does not overload the
front or the rear gross axle weight rating
specified for your vehicle on the Safety
Compliance Certification label.
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TOWING A TRAILER
WARNING: Towing trailers
beyond the maximum recommended
gross trailer weight exceeds the limit
of your vehicle and could result in
engine damage, transmission damage,
structural damage, loss of vehicle
control, vehicle rollover and personal
injury. WARNING:
Do not exceed the
GVWR or the GAWR specified on the
certification label.
Note: See
Recommended Towing
Weights (page 327).
Your vehicle may have electrical items,
such as fuses or relays, related to
towing.
See Fuses (page 360). Your vehicle's load capacity designation
is by weight, not by volume, so you
cannot necessarily use all available
space when loading a vehicle or trailer.
Towing a trailer places an extra load on
your vehicle's engine, transmission, axle,
brakes, tires and suspension. Inspect
these components periodically during,
and after, any towing operation.
Load Placement
To help minimize how trailer movement
affects your vehicle when driving:
•
Load the heaviest items closest to
the trailer floor.
• Load the heaviest items centered
between the left and right side trailer
tires. •
Load the heaviest items above the
trailer axles or just slightly forward
toward the trailer tongue. Do not
allow the final trailer tongue weight
to go above or below 10-15% of the
loaded trailer weight.
• Select a ball mount with the correct
rise or drop and load capacity. When
both the loaded vehicle and trailer
are connected, the trailer frame
should be level, or slightly angled
down toward your vehicle, when
viewed from the side.
When driving with a trailer or payload, a
slight takeoff vibration or shudder may
be present due to the increased payload
weight. Additional information regarding
proper trailer loading and setting your
vehicle up for towing is located in
another chapter of this manual.
See
Load Limit (page 309).
You can also find information in the
RV
& Trailer Towing Guide available at your
authorized dealer, or online.
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RV & Trailer Towing Guide Online
http://www.fleet.ford.com/towing-guides/
Website
TRAILER REVERSING AIDS (IF
EQUIPPED)
Pro Trailer Backup Assist™ WARNING:
Driving while distracted
can result in loss of vehicle control, crash
and injury. We strongly recommend that
you use extreme caution when using any
device that may take your focus off the
road. Your primary responsibility is the safe
operation of your vehicle. We recommend
against the use of any hand-held device
while driving and encourage the use of
voice-operated systems when possible.
Make sure you are aware of all applicable
local laws that may affect the use of
electronic devices while driving. WARNING:
This system is an extra
driving aid. It does not replace your
attention and judgment, or the need to
apply the brakes. This system does NOT
automatically brake your vehicle. If you fail
to press the brake pedal when necessary,
you may collide with another vehicle.
Note: The system is not a substitute for safe
driving practices.
Note: You must always be aware of the
vehicle and trailer combination and the
surrounding environment.
Note: The system does not detect or prevent
the vehicle or trailer from making contact
with obstacles in the surrounding
environment.
Note: Keep in mind that the front end of the
vehicle swings out when changing the
direction of the trailer. Note:
The system relies on user
measurements to determine sticker
placement and system limits. It is critical to
take the key measurements correctly.
Incorrect measurements can result in the
improper function of the system up to and
including contact between the vehicle and
trailer.
Note: The system limits vehicle speed when
backing up. The system is not a replacement
for proper use of the throttle and brake
pedals.
Principle of Operation
This feature helps you to steer your vehicle
when reversing with a trailer attached. Turn
and hold the control knob in the direction
you want the trailer to go and the system
takes over the steering. This allows you to
focus on checking the mirrors and operating
the brake and accelerator.
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You have to set up each trailer you use with
your vehicle. You must accurately follow the
setup process to make sure you correctly
place the sticker.
Contact your dealership if you need
assistance in setting up your trailer.
Setting Up Pro Trailer Backup Assist
Note:
Once you enter a trailer's information,
the system stores it for easy recall. You can
add a maximum of 10 trailers to the system.
Step 1: Position your Vehicle and Trailer
Hitch the conventional trailer to your vehicle.
See Essential Towing Checks (page 330).
Park your vehicle and trailer on a level
surface. For best results, make sure that your trailer
rides level with the ground when you hitch
your vehicle. More information on selecting
your tow bar is available in the Towing
section.
See Towing (page 315).
Make sure your vehicle and the trailer are in
line with each other. You can do this by
driving straight forward.
Step 2: Follow the Information Display
Prompts
Press the button to turn the system on.
1. Select the option to add a trailer in the
information display using the steering
wheel control.
See General Information
(page 134).
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2. Add a personalized name for the trailer
using the screen prompts. Use the down
arrow to scroll to the desired letter and
then press the toggle switch to advance
to the next letter. Press OK to continue.
3. Select the type of trailer brake system for
the trailer you are adding.
4. Select the brake effort level for the trailer.
Note: The default option is low. We
recommend this for most trailers. If the
trailer's brakes require more initial voltage,
or if you prefer more aggressive braking,
then select the other options as required.
Some examples of conventional type trailers
are below.
Note: You cannot use the system with the
types of trailers marked with the cross. The system only works with conventional
trailers. It does not work with other types
including goose neck and fifth wheel.
Follow the information display prompts.
Step 3: Place the Sticker on the Trailer
Frame
You must place the supplied sticker in an
area visible by the rear view camera.
Note:
An assistant can help to carry out the
following procedure. Note:
Make sure nothing can obstruct the
rear view cameras view of the sticker. For
example, items such as a jack handle or
wiring.
Note: Position the sticker on a flat, dry and
clean horizontal surface. For best results
apply the sticker when temperatures are
above 32°F (0°C).
Note: Do not move stickers after you position
them. Do not re-use any stickers if removed.
Note: You can purchase additional stickers
through your authorized dealer. 318
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Use the supplied measurement card, a tape
measure and pen to carefully mark the area
where to attach the sticker (supplied in the
back cover pocket of your quick start guide).
Make sure the whole sticker is within the
zone between the two arcs or distance
markers on the diagram, and is also visible
in the rear view camera display.
Step 4: Take Measurements
After you correctly place the sticker on the
trailer, you must take some key
measurements.
Note:
You must take accurate
measurements for the system to operate
properly.
Note: When rounding in inches, round
upward if the measured length is a quarter
inch or greater. Round downward if the
measured length is less than a quarter inch.
For example 12.25 in (31.11 cm) would be
rounded up to 12.50 in (31.75 cm). 12.13 in
(30.8 cm) would be rounded down to 12.00 in
(30.48 cm)
. Note:
When rounding in centimeters, round
to the nearest whole centimeter. If the
measurement is less than
0.2 in (0.5 cm)
round downward. If the measurement is
more than or equal to
0.2 in (0.5 cm) round
upward. For example, 11.9 in (30.3 cm) would
be rounded down to 11.8 in (30 cm). 12.0 in
(30.5 cm) would be rounded up to 12.2 in
(31 cm).
Note: Use consistent metric or imperial units
as required by your country or vehicle.
Record the four key distances (A, B, C, D) as
required by the measurement card. Record
the trailer name for these measurements. Distance A
The horizontal distance from the bumper to
the center of the ball hitch on the trailer.
Distance B
The horizontal distance from the center of
the ball hitch to the center of the sticker.
Distance C
The distance from the rear view camera to
the center of the sticker.
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Distance D
The horizontal distance from the bumper to
the center of the trailer axle (single axle
trailers), or the center of the axles (trailers
with dual axles or more).
Note:
If the distance ends in anything less
than one half of an inch, round down to the
current whole inch. If a distance ends in one
half or greater of an inch, round up to the
next whole inch. For example, 12.3 in
(31.12 cm) would be rounded down to 12 in
(30.48 cm). 12.5 in (31.75 cm) would be
rounded up to 13 in (33 cm).
Step 5: Enter Measurements Using the
Information Display
Using the recorded measurements, enter the
required data into the system. Follow the on
screen prompts to enter each of the
measurements taken in step 4. When all four
distances have been entered, a confirmation
display will appear. Check the values are
correct before proceeding, or go back to
change any if required. Step 6: Confirming the Sticker Location
Check the rear view camera display to see
if the sticker is identified by the system and
marked with a red circle.
Confirm that the red circle is correctly located
over the sticker image in the display. The on
screen prompt will ask you to confirm this.
Note:
If the system cannot locate the sticker
try cleaning the camera lens, and also make
sure the sticker is within the green zone as
indicated in step 3.
Calibrating the System
To complete setup, drive your vehicle
straight forward between 4 mph (6 km/h) and
24 mph (39 km/h)
following the on screen
prompt.
Note: Check your measurements to make
sure you measured from the correct points.
Note: If you move the steering wheel during
this procedure, the calibration pauses.
Note: We recommend that you do not do
this at night. A message will be displayed during
calibration and after calibration is complete.
Using Pro Trailer Backup Assist
To use the system press the button and
select the required trailer from the display.
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When the sticker is located, the display
prompts you to shift into reverse (R). The
system turns on. Note:
The system does not function if your
hands are on the steering wheel. Remove
your hands to resume operation.
Follow the screen prompts to steer your
vehicle and trailer.
Note: You may have to drive forward to
straighten the trailer.
Take your hands off the steering wheel and
turn the Pro Trailer Backup Assist control
knob instead. The knob acts as the steering
control for the trailer.
Note: The more you turn the knob, the
sharper the trailer turns. Turn and hold counterclockwise to make the
trailer go left. Turn and hold clockwise to make the trailer
go right.
Note:
Practice maneuvering with the system
in a safe open area first.
Note: Try backing up in a straight line and
then turning the knob slowly in the direction
you want to go.
Note: Quickly turning and releasing the knob
results in a jerky movement of the vehicle. 321
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Release the knob when the trailer is moving
in the direction you want. Control the
accelerator and brakes while the system
steers your vehicle automatically to keep the
trailer moving straight back.
Note:
You may have to use the knob to
correct the trailer direction when attempting
to move the trailer straight back under some
conditions.
Note: Your vehicle speed is automatically
limited.
Note: When you release the knob or turn it
to the center position, your vehicle follows
the trailer's path.
Troubleshooting
Note: The system requires a clear view of
the sticker placed on the trailer. You must
keep the camera lens and sticker clean for
the system to operate correctly. Setup
The system is designed to be used with a
wide variety of trailers. However there are
some trailers that do not have a proper
surface and location to mount the sticker.
These trailers are not supported. Attempts
to place the sticker on a surface that does
not meet the sticker placement requirement
listed in Step 3 of the setup instruction or
entering inaccurate measurements to
proceed through setup can result in improper
system function.
Accurate measurements are critical to correct
system function. If you need to check
measurements entered or change them you
can access them through the trailer menus
in the instrument cluster. Choose the option
to change the sticker from the change trailer
settings menu. It is not necessary to remove
the sticker if you are just reviewing or
changing measurements.
The following menu warnings or difficulties
may occur during setup. Tips to resolve them
are listed below.Note:
If you still experience issues with the
system's ability to detect the sticker, see the
information in the next section regarding
sticker lost during system operation.
Measurement A has reached maximum or
minimum value:
• The system is designed to work with
drawbars that have a bumper to hitch ball
center measurement of 4 in (10 cm) to
11 in (28 cm) when installed. Do not
attempt to use drawbars that have a
length outside this range as the system
performance will be degraded and could
cause improper system function.
• Make sure that the measurement being
made is the horizontal distance only from
bumper and the hitch ball center. A
straight line distance that includes any
vertical rise or drop will increase the
measurement and make it inaccurate.
Inaccurate measurements will degrade
system performance and could cause
improper system function. See step 4 of
the setup instruction to review
measurement instructions.
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