2021 LINCOLN NAVIGATOR trailer

The controller shows gain setting, output bar
graph, and trailer connectivity status in the
information display. They appear in the
information display as follows:
•
Trailer Brake Controller Gain (without
trailer connected): Shows the current gain
setting during a given ignition cycle and
when adjusting the gain. This also
displays if you use the manual control
lever or make gain adjustments with no
trailer connected.
• Trailer Brake Controller Gain Output:
Displays when you push your vehicle's
brake pedal, or upon use of the manual
control. Bar indicators illuminate in the
information display to indicate the
amount of power going to the trailer
brakes relative to the brake pedal or
manual control input. One bar indicates
the least amount of output; six bars
indicate maximum output. •
Trailer Connected: Displays when the
system senses a correct trailer wiring
connection (a trailer with electric trailer
brakes) during a given ignition cycle.
• Trailer Disconnected: Displays,
accompanied by a single audible time,
when the system senses a trailer
connection and then a disconnection,
either intentional or unintentional, during
a given ignition cycle. It also displays if a
truck or trailer-wiring fault occurs causing
the trailer to appear disconnected. This
message can also display if you use the
manual control lever without a trailer
connected. After disconnecting the trailer
connector, press the brake pedal for
approximately five seconds to allow the
system to detect and update the trailer
status. B: Manual control lever: Slide the control
lever to the left to turn on the trailer's electric
brakes independent of the tow vehicle's. See
the following
Procedure for adjusting gain
section for instructions on proper use of this
feature. If you use the manual control while
the brake is also applied, the greater of the
two inputs determines the power sent to the
trailer brakes.
• Stop lamps:
Using the manual control
lever illuminates both the trailer brake
lamps and your vehicle brake lamps
except the center high-mount stop lamp,
if you make the proper electrical
connection to the trailer. Pressing your
vehicle brake pedal also illuminates both
trailer and vehicle brake lamps.
Procedure for Adjusting Gain
Note: Only perform this procedure in a
traffic-free environment at speeds of
approximately
20–25 mph (32–40 km/h).
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The gain setting sets the trailer brake
controller for the specific towing condition.
You should change the setting as towing
conditions change. Changes to towing
conditions include trailer load, vehicle load,
road conditions and weather.
The gain should be set to provide the
maximum trailer braking assistance while
making sure the trailer wheels do not lock
when using the brakes. Locked trailer wheels
may lead to trailer instability.
1.
Make sure the trailer brakes are in good
working condition, functioning normally
and properly adjusted. See your trailer
dealer if necessary.
2. Hook up the trailer and make the electrical connections according to the
trailer manufacturer's instructions.
3. When you plug in a trailer with electric or
electric-over-hydraulic brakes, a message
confirming connection appears in the
information display. 4.
Use the gain adjustment (+ and -) buttons
to increase or decrease the gain setting
to the desired starting point. A gain
setting of 6.0 is a good starting point for
heavier loads.
5. In a traffic-free environment, tow the trailer on a dry, level surface at a speed
of 20–25 mph (32–40 km/h) and
squeeze the manual control lever
completely.
6. If the trailer wheels lock up, indicated by
squealing tires, reduce the gain setting.
If the trailer wheels turn freely, increase
the gain setting. Repeat Steps 5 and 6
until the gain setting is at a point just
below trailer wheel lock-up. If towing a
heavier trailer, trailer wheel lock-up may
not be attainable even with the maximum
gain setting of 10.
Explanation of Information Display Warning
Messages
Note: An authorized dealer can diagnose
the trailer brake controller to determine
exactly which trailer fault has occurred.
However, your warranty does not cover this
diagnosis if the fault is with the trailer. A message indicating a trailer brake module
fault may display in response to faults sensed
by the trailer brake controller, accompanied
by a single tone. If this message appears,
contact an authorized dealer as soon as
possible for diagnosis and repair. The
controller may still function, but performance
may be degraded.
A message indicating a trailer wiring fault
may display when there is a short circuit on
the electric brake output wire. If this message
displays, accompanied by a single tone, with
no trailer connected, the problem is with your
vehicle wiring between the trailer brake
controller and the 7-pin connector at the
bumper. If the message only displays with a
trailer connected, the problem is with the
trailer wiring. Consult your trailer dealer for
assistance. This can be a short to ground
(such as a chaffed wire), short to voltage
(such as a pulled pin on trailer emergency
breakaway battery) or the trailer brakes may
be drawing too much current.
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Points to Remember
Note:
Do not attempt removal of the trailer
brake controller without consulting the
Workshop Manual. Damage to the unit may
result.
• Adjust gain setting before using the
trailer brake controller for the first time.
• Adjust gain setting, using the procedure
above, whenever road, weather and
trailer or vehicle loading conditions
change from when the gain was initially
set.
• Only use the manual control lever for
proper adjustment of the gain during
trailer setup. Misuse, such as application
during trailer sway, could cause instability
of trailer or tow vehicle.
• Avoid towing in adverse weather
conditions. The trailer brake controller
does not provide anti-lock control of the
trailer wheels. Trailer wheels can lock up
on slippery surfaces, resulting in reduced
stability of trailer and tow vehicle. •
The trailer brake controller is equipped
with a feature that reduces output at
vehicle speeds below 11 mph (18 km/h)
so trailer and vehicle braking is not jerky
or harsh. This feature is only available
when applying the brakes using your
vehicle's brake pedal, not the controller.
• The controller interacts with the brake
control system and powertrain control
system of your vehicle to provide the
best performance on different road
conditions.
• Your vehicle's brake system and the
trailer brake system work independently
of each other. Changing the gain setting
on the controller does not affect the
operation of your vehicle's brakes
whether you attach a trailer or not. •
When you switch the engine off, the
controller output is disabled and the
display and module shut down. The
controller module and display turn on
when you switch the ignition on.
• The trailer brake controller is only a
factory-installed or dealer-installed item.
Lincoln is not responsible for warranty or
performance of the controller due to
misuse or customer installation.
Trailer Lamps WARNING: Never connect any trailer
lamp wiring to the vehicle's tail lamp wiring;
this may damage the electrical system
resulting in fire. Contact your authorized
dealer as soon as possible for assistance
in proper trailer tow wiring installation.
Additional electrical equipment may be
required.
Trailer lamps are required on most towed
vehicles. Make sure all running lights, brake
lights, turn signals and hazard lights are
working.
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Before Towing a Trailer
Practice turning, stopping and backing up to
get the feel of your vehicle-trailer
combination before starting on a trip. When
turning, make wider turns so the trailer
wheels clear curbs and other obstacles.
When Towing a Trailer
•
Do not drive faster than 70 mph
(113 km/h) during the first 500 mi
(800 km).
• Do not make full-throttle starts.
• Check your hitch, electrical connections
and trailer wheel lug nuts thoroughly after
you have traveled
50 mi (80 km).
• When stopped in congested or heavy
traffic during hot weather, place the
transmission in park (P) to aid engine and
transmission cooling and to help A/C
performance.
• Turn off the speed control when carrying
heavy loads or in hilly terrain. The speed
control may turn off automatically when
you are towing on long, steep grades. •
Shift to a lower gear when driving down
a long or steep hill. Do not apply the
brakes continuously, as they may
overheat and become less effective.
• If your transmission has a Grade Assist
or Tow/Haul feature, use this feature
when towing. This provides engine
braking and helps eliminate excessive
transmission shifting for optimum fuel
economy and transmission cooling.
• If your vehicle has AdvanceTrac with
RSC, this system may turn on during
typical cornering maneuvers with a
heavily loaded trailer. This is normal.
Turning the corner at a slower speed
while towing may reduce this tendency.
• If your vehicle has Adaptive suspension,
you can select NORMAL or SPORT drive
control modes for better experience
when towing a trailer.
See Information
Displays (page 134). •
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 Capacities and
Specifications (page 438).
• 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 transmission in park (P).
4. Place wheel chocks in the front and back
of the trailer wheels.
Note: Chocks are not included with your
vehicle.
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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
before backing the trailer into the water.
Note: Reconnect the wiring to the trailer
after
removing 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 in (15 cm)
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 has been submerged in water.
Water may have contaminated the rear axle
lubricant, which is not normally checked or
changed unless a leak is suspected or other
axle repair is required.
TOWING THE VEHICLE ON FOUR
WHEELS WARNING:
If your vehicle has a
steering wheel lock make sure the ignition
is in the accessory or on position when
being towed. Recreational Towing
Note:
Put your climate control system in
recirculated air mode to prevent exhaust
fumes from entering your vehicle.
See
Climate Control (page 166).
Follow these guidelines if you have a need
for recreational towing, such as towing your
vehicle behind a motorhome. These
guidelines are designed to prevent damage
to your transmission.
Two-wheel Drive Vehicles
You cannot tow a two-wheel drive vehicle
with any wheels on the ground as vehicle or
transmission damage may occur. You must
tow your vehicle with all four wheels off the
ground, for example when using a
car-hauling trailer.
Four-wheel Drive Vehicles Without
SLOW
CLIMB Mode
You cannot tow your vehicle with any wheels
on the ground or vehicle damage may occur.
You must tow your vehicle with all four
wheels off the ground, for example when
using a car-hauling trailer.
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ROADSIDE ASSISTANCE
Vehicles sold in the United States:
Getting Roadside Assistance
To fully assist you should you have a vehicle
concern, Lincoln Motor Company offers a
complimentary roadside assistance program.
This program is separate from the New
Vehicle Limited Warranty.
The service is available:
•
Throughout the life of the vehicle for
original owners.
• For six years or 70,000 mi (110,000 km)
(whichever comes first) for subsequent
owners.
Roadside Assistance covers:
• A flat tire change with a good spare
(except vehicles supplied with a tire
inflation kit).
• Battery jump start.
• Lock-out assistance (key replacement
cost is the client's responsibility). •
Fuel delivery — independent service
contractors, if not prohibited by state,
local or municipal law shall deliver up to
2 gal (8 L)
of gasoline fuel to a disabled
vehicle. Roadside Assistance limits fuel
delivery service to two no-charge
occurrences within a 12-month period.
• Winch out — available within 100 ft (30 m)
of a paved or county maintained road,
no recoveries. •
Towing — independent service
contractors, if not prohibited by state,
local or municipal law shall tow Lincoln
eligible vehicles to the client's selling or
preferred dealer within 100 mi (160 km)
of the disablement location or to the
nearest Lincoln dealer. If a client requests
a tow to a selling or preferred dealer that
is more than
100 mi (160 km) from the
disablement location, the client is
responsible for any mileage costs in
excess of
100 mi (160 km).
• Roadside Assistance includes up to $200
for a towed trailer if the disabled eligible
vehicle requires service at the nearest
authorized dealer. If the towing vehicle
is operational but the trailer is not, then
the trailer does not qualify for any
roadside services.
Vehicles Sold in the United States:
Using Roadside Assistance
United States clients who require roadside
assistance, call 1-800-521-4140 or contact
Roadside Assistance using the Lincoln Way
mobile app.
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Protected Component
Fuse Rating
Fuse Number
Horn.
25 A
1
Electric fan 1.
50 A
2
Front wiper motor.
30 A
3
Inverter.
50 A
4
Starter relay.
30 A
5
Power point #1.
20 A
6
Power point #2.
20 A
8
Rain sensor.
5 A
10
Trailer tow light module.
20 A
12
4X4 module.
10 A
13
Heated backlight relay coil.
Heated mirror relay coil.
Heated wiper park relay coil.
Transmission isolation relay coil.
Transmission coil module.
15 A
14
Right-hand lighting driver module.
15 A
15
Left-hand lighting driver module.
Voltage quality module.
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Protected Component
Fuse Rating
Fuse Number
Blindspot information system.
Cruise control module.
Tailgate applique.
Air quality sensor.
Image processing module B.
Powertrain control module run/start feed.
10 A
16
Anti-lock brake system run/start feed.
10 A
17
Electronic power assist steering run/start feed.
10 A
18
Not used.
—
19
Front blower.
40 A
20
Passenger seat motors.
40 A
21
Not used.
—
22
Alternator A-line.
10 A
23
Trailer brake control module.
30 A
24
Body control module power 1.
50 A
25
Electric fan 3.
50 A
26
Driver seat motors.
40 A
27
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