steering LINCOLN AVIATOR 2021 Repair Manual

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: Use a floor mat designed
to fit the footwell of your vehicle that does
not obstruct the pedal area. Failure to
follow this instruction could result in the
loss of control of your vehicle, personal
injury or death. WARNING:
Pedals that cannot move
freely can cause loss of vehicle control and
increase the risk of serious personal injury. WARNING:
Secure the floor mat to
both retention devices so that it cannot slip
out of position and interfere with the
pedals. Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death. WARNING:
Do not place additional
floor mats or any other covering on top of
the original floor mats. This could result in
the floor mat interfering with the operation
of the pedals. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death. WARNING:
Always make sure that
objects cannot fall into the driver foot well
while your vehicle is moving. Objects that
are loose can become trapped under the
pedals causing a loss of vehicle control. 349
Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Driving HintsE259345 E142666

Protected Component
Fuse Rating
Fuse or Relay Number
Front blower motor relay.
40A
13
Transmission oil pump.
15A
14
A/C compressor variable clutch.
Engine mounts.
Auxiliary pumps.
Windshield and rear window washer pump relay power.
15A
16
Charge status indicator.
5A
17
Starter motor.
30A
18
Headlamp leveling motors.
10A
21
Adaptive headlamps.
Electric power assisted steering module.
10A
22
Anti-lock brake system module with integrated park brake.
10A
23
Powertrain control module.
10A
24
Hybrid powertrain control module.
Air quality sensor.
10A
25
Particulate matter sensor.
360 degree camera with park aid.
Rear view camera.
Blind spot information system.
Adaptive cruise control module.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay Number
Heated backlite.
40A
50
Heated steering wheel.
20A
54
Trailer tow park lamps.
20A
55
Trailer tow battery charge.
30A
57
Trailer tow backup lamps.
10A
58
Multi-contour seat module.
15A
61
Headlamp washer pump.
15A
62
Four-wheel drive module.
40A
64
Front window wiper motor.
30A
69
Rear window wiper motor.
15A
71
Air suspension module.
20A
72
Driver door module.
30A
73
Not used.
—
78
Not used.
—
79
Left-hand front electronic door.
20A
80
Right-hand front electronic door.
20A
82
373
Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay Number
Battery electronic control module.
15A
146
Left-hand headlamp module.
30A
148
Right-hand headlamp module.
30A
149
Not used (spare).
40A
150
Transmission control module.
25A
155
DC/DC converter.
15A
159
Not used (spare).
10A
160
Low voltage service disconnect.
20A
168
Coolant pump.
10A
169
Traction battery coolant pump.
10A
170
Pedestrian sounder.
Center console blower.
10A
177
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse Panel
The fuse panel is under the instrument panel
to the left of the steering column. Note:
It may be easier to access the fuse
panel if you remove the finish trim piece.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay Number
Driver door switch pack.
Memory seat switch.
7.5A
3
Wireless accessory charger module.
Seat switches.
Not used (spare).
20A
4
Not used.
—
5
Not used.
10A
6
Smart data link connector power.
10A
7
Telematics control unit module.
5A
8
Hands-free liftgate actuation module.
Power liftgate module.
Combined sensor module.
5A
9
Keypad switch.
Rear climate control.
Not used.
—
10
Not used.
—
11
Remote climate control module.
7.5A
12
Gear shift module.
Steering column control module.
7.5A
13
378
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Note:
If the oil level is between the
maximum and minimum marks, the oil level
is acceptable. Do not add oil.
Note: The oil consumption of new engines
reaches its normal level after approximately
3,000 mi (5,000 km).
Adding Engine Oil WARNING:
Do not remove the filler
cap when the engine is running.
Do not use supplemental engine oil additives
because they are unnecessary and could
lead to engine damage that may not be
covered by the vehicle Warranty. Only use oils certified for gasoline engines
by the American Petroleum Institute (API).
An oil with this trademark symbol conforms
to the current engine and emission system
protection standards and fuel economy
requirements of the International Lubricants
Specification Advisory Committee (ILSAC).
To top up the engine oil level do the
following:
1. Clean the area surrounding the engine
oil filler cap before you remove it.
2. Remove the engine oil filler cap.
See
Under Hood Overview (page 386). Turn
it counterclockwise and remove it. 3. Add engine oil that meets our
specifications.
See Capacities and
Specifications (page 450). You may have
to use a funnel to pour the engine oil into
the opening.
4. Recheck the oil level.
5. If the oil level is correct, replace the dipstick and make sure it is fully seated.
6. Replace the engine oil filler cap. Turn it clockwise until you feel a strong
resistance.
Note: Do not add oil further than the
maximum mark. Oil levels above the
maximum mark may cause engine damage.
Note: Make sure you install the oil filler cap
correctly.
Note: Soak up any spillage with an
absorbent cloth immediately.
OIL CHANGE INDICATOR RESET
Use the information display controls on the
steering wheel to reset the oil change
indicator.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing MaintenanceE142732

Severe Climates
If you drive in extremely cold climates:
•
It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60% provides
improved freeze point protection.
Coolant concentrations above 60%
decrease the overheat protection
characteristics of the coolant and may
cause engine damage.
If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• Coolant concentrations below 40%
decrease the freeze and corrosion
protection characteristics of the coolant
and may cause engine damage.
Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection. Coolant Change
At specific mileage intervals, as listed in the
scheduled maintenance information, the
coolant should be changed. Add prediluted
coolant approved to the correct specification.
See Capacities and Specifications (page
450).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient temperature,
vehicle load and terrain.
How Fail-Safe Cooling Works If the engine begins to overheat,
the coolant temperature gauge
moves toward the red zone:
A warning lamp illuminates and a
message may appear in the
information display.If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating cylinder
operation. Each disabled cylinder acts as an
air pump and cools the engine.
When this occurs, your vehicle still operates,
however:
•
Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you can
re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Maintenance

When Fail-Safe Mode Is Activated
WARNING: Fail-safe mode is for use
during emergencies only. Operate your
vehicle in fail-safe mode only as long as
necessary to bring your vehicle to rest in
a safe location and seek immediate repairs.
When in fail-safe mode, your 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: Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap with
a thick cloth to prevent the possibility of
scalding and slowly remove the cap.
Failure to follow this instruction could result
in personal injury. Your vehicle has limited engine power when
in the fail-safe mode, drive your vehicle with
caution. Your vehicle does not maintain
high-speed operation and the engine may
operate poorly.
Remember that the engine is capable of
automatically shutting down to prevent
engine damage. In this situation:
1. Pull off the road as soon as safely
possible and switch the engine off.
2. If you are a member of a roadside assistance program, we recommend that
you contact your roadside assistance
service provider.
3. If this is not possible, wait for a short period of time for the engine to cool.
4. Check the coolant level. If the coolant level is at or below the minimum mark,
add prediluted coolant immediately.
5. When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage.
Note: Driving your vehicle without repair
increases the chance of engine damage. Engine Coolant Temperature
Management
(If Equipped) WARNING:
To reduce the risk of
crash and injury, be prepared that the
vehicle speed may reduce and the vehicle
may not be able to accelerate with full
power until the coolant temperature
reduces.
If you tow a trailer with your vehicle, the
engine may temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long or
steep grade in high ambient temperatures.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Maintenance

WARNING: Only use brake fluid from
a sealed container. Contamination with dirt,
water, petroleum products or other
materials may result in brake system
damage or failure. Failure to adhere to this
warning could result in the loss of vehicle
control, serious personal injury or death. WARNING:
Do not allow the fluid to
touch your skin or eyes. If this happens,
rinse the affected areas immediately with
plenty of water and contact your physician. WARNING:
The brake system could
be affected if the brake fluid level is below
the
MIN mark or above the MAX mark on
the brake fluid reservoir. 1. Park your vehicle on a level surface.
2. Look at the brake fluid reservoir to see
where the brake fluid level is relative to
the
MIN and the MAX marks on the
reservoir.
Note: If the brake fluid level is between the
MIN
and the MAX marks on the reservoir, it
is acceptable. Note:
If the brake fluid level is below the MIN
mark or above the
MAX mark, have your
vehicle checked as soon as possible.
Note: To avoid fluid contamination, the
reservoir cap must remain in place and fully
tight, unless you are adding fluid.
Only use fluid that meets our specifications.
See
Capacities and Specifications (page
450).
Brake Fluid Service Interval
Brake fluid absorbs water over time which
degrades the effectiveness of the brake fluid.
Change the brake fluid at the specified
intervals to prevent degraded braking
performance.
For detailed interval information, see
Scheduled Maintenance in your Owner's
Manual or your local maintenance guide.
POWER STEERING FLUID CHECK
Your vehicle is equipped with an electric
power steering (EPS) system. There is no
fluid reservoir to check or fill.
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For longer, trouble-free operation, keep the
top of the battery clean and dry and the
battery cables tightly fastened to the battery
terminals. If any corrosion is present on the
battery or terminals, remove the cables from
the terminals and clean with a wire brush.
You can neutralize the acid with a solution
of baking soda and water.
We recommend that you disconnect the
negative battery cable terminal from the
battery if you plan to store your vehicle for
an extended period.
Note:
If you only disconnect the negative
battery cable terminal, make sure it is
isolated or placed away from the battery
terminal to avoid unintended connection or
arcing.
If you replace the battery make sure it
matches the electrical requirements of your
vehicle. If you disconnect or replace the battery and
your vehicle has an automatic transmission,
it must relearn its adaptive strategy. Because
of this, the transmission may shift firmly when
first driven. This is normal operation while
the transmission fully updates its operation
to optimum shift feel.
Battery Management System (If Equipped)
The battery management system monitors
battery conditions and takes actions to
extend battery life. If excessive battery drain
is detected, the system temporarily disables
some electrical systems to protect the
battery.
Systems included are:
• Heated rear window.
• Heated seats.
• Climate control.
• Heated steering wheel.
• Audio unit.
• Navigation system. A message may appear in the information
displays to alert you that battery protection
actions are active. These messages are only
for notification that an action is taking place,
and not intended to indicate an electrical
problem or that the battery requires
replacement.
After battery replacement, or in some cases
after charging the battery with an external
charger, the battery management system
requires eight hours of vehicle sleep time to
relearn the battery state of charge. During
this time your vehicle must remain fully
locked with the ignition switched off.
Note:
Prior to relearning the battery state of
charge, the battery management system
may temporarily disable some electrical
systems.
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Aviator (CTV) Canada/United States of America, enUSA, Edition date: 202007, Second-Printing Maintenance