fuel LINCOLN AVIATOR 2023 Owner's Manual

If you are unable to start your vehicle, do the
following:
1. Fully depress the brake pedal.
2. SYNC displays the Backup Starting
Passcode entry screen.
3. Using the SYNC display enter the backup
password and select Enter within 30
seconds.
4. SYNC displays messages to start the
vehicle.
5. Fully depress the brake pedal and press
the start button within 20 seconds to start
the engine.
Automatic Engine Shutdown
This feature shuts down the engine if it has
been idling for an extended period. The
ignition also turns off in order to save battery
power. Before your vehicle shuts down, a
message appears in the information display
showing a timer counting down from 30seconds. If you do not intervene within 30
seconds, your vehicle shuts down. Another
message appears in the information display
to inform you that your vehicle has shut down
to save fuel. Start your vehicle as you
normally do.
Note:Automatic Engine Shutdown may be
more frequent for hybrid vehicles.
Automatic Engine Shutdown Override
Note:You cannot permanently switch off the
automatic shutdown feature. When you
switch it off temporarily, it turns on at the
next ignition cycle.You can stop the shutdown, or reset the
timer, at any point before the 30-second
countdown has expired by doing any of the
following:
• You can reset the timer by interacting
with your vehicle, for example pressing
the brake or accelerator pedal.
• You can temporarily switch off the
shutdown feature any time the ignition is
on for the current ignition cycle only. Use
the vehicle settings on your touchscreen
to turn 30min Max Idle on or off.
• During the 30-second countdown, the
system prompts you to press OK or
RESET to temporarily switch the feature
off for the current ignition cycle only.Stopping the Engine When Your
Vehicle is Stationary
1. Shift into park (P).
2. Press the push button ignition switch.
3. Apply the parking brake.
Note:The ignition, all electrical circuits and
all warning lamps and indicators will be
turned off.
208
Starting and Stopping the Engine

30 seconds. If you do not intervene within
30 seconds, your vehicle shuts down.
Another message appears in the information
display to inform you that your vehicle has
shut down to save fuel. Start your vehicle as
you normally do.
Note:Automatic Engine Shutdown may be
more frequent for hybrid vehicles.
Automatic Engine Shutdown Override
Note: You cannot permanently switch off
the automatic shutdown feature. When you
switch it off temporarily, it turns on at the
next ignition cycle.You can stop the shutdown, or reset the
timer, at any point before the 30-second
countdown has expired by doing any of the
following:
• You can reset the timer by interacting
with your vehicle, for example pressing
the brake or accelerator pedal.
• You can temporarily switch off the
shutdown feature any time the ignition is
on using the information display. See
Information Displays (page 136). The
feature only remains off for the current
ignition cycle.
• During the 30-second countdown, the
system prompts you to press OK or
RESET to temporarily switch the feature
off for the current ignition cycle only.
Switching Off Your Vehicle When It Is
Stationary
1. Put the transmission in park (P).
2. Press the push button ignition switch
once.
3. Apply the parking brake.Note:This switches off the ignition, warning
lamps and indicators.
Vehicles Using Phone as a Key
1. Shift into park (P).
2. Press the push button ignition switch.
3. Apply the parking brake.
Note:The ignition, all electrical circuits and
all warning lamps and indicators turn off.
Note:If the engine is idling for 30 minutes,
the ignition and engine automatically shut
down.
Switching Off Your Vehicle When It Is
Moving
WARNING: Switching off the engine
when your vehicle is still moving results in
a significant decrease in braking
assistance. Higher effort is required to
apply the brakes and to stop your vehicle.
A significant decrease in steering
assistance could also occur. The steering
does not lock, but higher effort could be
212
Starting and Stopping the Engine

AUTO-START-STOP - EXCLUDING:
PLUG-IN HYBRID ELECTRIC
VEHICLE (PHEV)
The system helps reduce fuel consumption
by automatically stopping and restarting the
engine when your vehicle has stopped. The
engine restarts automatically when you
release the brake pedal.
In some situations, your vehicle may restart
automatically, for example:
• To maintain interior comfort.
• To recharge the battery.
Note:Power assist steering turns off when
the engine is off.
Note:If your vehicle is flex fuel capable,
Auto-Start-Stop will be inhibited for a short
time after a refuel event while the system is
verifying the fuel type being used.
WARNING: Apply the parking brake,
shift into park (P), switch the ignition off
and remove the key before you leave your
vehicle. Failure to follow this instruction
could result in personal injury or death.
WARNING: Apply the parking brake,
shift into park (P), switch the ignition off
and remove the key before you open the
hood or have any service or repair work
completed. If you do not switch the ignition
off, the engine could restart at any time.
Failure to follow this instruction could result
in personal injury or death.
WARNING: The system may require
the engine to automatically restart when
the auto-start-stop indicator illuminates
green or flashes amber. Failure to follow
this instruction could result in personal
injury.
The Auto-Start-Stop system status is
available at a glance within the information
display. See Information Displays (page
136).
Enabling Auto-Start-Stop
The system automatically enables every time
you start your vehicle if:
• Your vehicle exceeds an initial speed of
3 mph (5 km/h) after you have initially
started your vehicle.
• You have stopped your vehicle.
• Your foot is on the brake pedal.
• The driver door is closed.
• The interior compartment has cooled or
warmed to an acceptable level.
• The front windshield defroster is off.
• You have not turned the steering wheel
rapidly or you do not have it at a sharp
angle.
• The vehicle is not on a steep road grade.
• The battery is within optimal operating
conditions (battery state of charge and
temperature in range).
• The engine coolant is near operating
temperature.
• Elevation is below about 12,000 ft
(3,650 m).
• Ambient temperature is moderate.
215
Unique Driving Characteristics

Note:If the Shift to park (P), Restart Engine
message appears and the amber
Auto-Start-Stop indicator light flashes in the
instrument cluster. This indicates automatic
restart is unavailable. You must restart the
vehicle manually. See Information Displays
(page 136).
If your vehicle is in an engine off
Auto-Start-Stop, shifting from drive (D) to
reverse (R) will not cause a restart if you do
not press the brake pedal. The message
Auto-Start-Stop Press Brake to Start Engine
appears. You must press the brake pedal
within 60 seconds or the system requires
you to shift into park (P) and manually restart
your vehicle.
HYBRID VEHICLE OPERATION
This hybrid vehicle combines electric and
gasoline propulsion to provide breakthrough
performance and improved efficiency.
Familiarizing yourself with these unique
characteristics provides an optimal driving
experience from your vehicle.
Starting
E293827
When you start your vehicle, a
green READY indicator light
appears in the instrument cluster
letting you know that your vehicle is ready
for driving.
The engine may not start because your
vehicle has a silent key start feature. This
fuel saving feature allows your vehicle to be
ready to drive without requiring the gas
engine to be running. The indicator remains
on when your vehicle is on, whether the
engine is running or not, to indicate your
vehicle is capable of movement using the
electric motor, gas engine or both. Typically,
the engine does not start unless the vehicle
is cold, a climate control change is requested
or you press the accelerator pedal.
Driving
The gas engine automatically starts and
stops to provide power when needed and
to save fuel when not needed. When
coasting at low speeds, coming to a stop, or
standing, the gas engine normally shuts
down and your vehicle operates in
electric-only mode.
Conditions that may cause the engine to start
up or remain running include:
• Considerable vehicle acceleration.
• Climbing a hill.
• Charge level of high voltage battery is
low.
• High or low outside temperatures in
order to provide system heating or
cooling.
• Engine not warm enough to provide
passenger requested cabin temperature.
• Towing a trailer.
217
Unique Driving Characteristics

• Selectable drive modes: Certain
selectable drive modes may cause the
engine to run. See What Is Drive Mode
Control (page 343).
• Live in Drive: Use of the paddle shifters
while in drive (D) may cause the engine
to run. See Automatic Transmission
(page 259).
Stopping
The gas engine may shut off to conserve fuel
as you come to a stop. Restarting your
vehicle is not required. Simply step on the
accelerator when you are ready to drive.
Transmission Operation
The engine and electric motor together
propel the vehicle through the automatic
transmission. This is normal hybrid operating
and helps deliver fuel efficiency and
performance.
Battery
Your hybrid is equipped with a high voltage
battery. A cool battery maintains battery life
and provides the best possible performance.
The high voltage battery is cooled by the
vehicle's air conditioning system. When the
air conditioning system is on, you may notice
a slight increase in air temperature coming
from the climate control vents while the
battery is cooling. You may also notice cool
air flowing from the vents when the air
conditioning or blower is off.
Braking
Your hybrid is equipped with standard
hydraulic braking and regenerative braking.
Regenerative braking is performed by your
transmission and it captures brake energy
and stores it in the high voltage battery.You may also notice during extending
downhill driving that your engine continues
to run instead of shutting off. During this
engine braking, the engine stays on, but it is
not using any fuel. You may also hear a slight
whine or whistle when operating your
vehicle. This is the normal operation of the
electric motor in the hybrid system.
Driving to Optimize Fuel Economy
Note:Having your engine running is not
always an indication of inefficiency. In some
cases, it is actually more efficient than
driving in electric mode.
Your fuel economy should improve
throughout your hybrid's break-in period. As
with any vehicle, your driving habits and
accessory usage can significantly impact
your fuel economy. For best results, keep
these tips in mind:
218
Unique Driving Characteristics

• Keep the tires properly inflated and only
use the recommended size.
• Aggressive driving increases the amount
of energy required to move your vehicle.
In general, you can achieve better fuel
economy with mild to moderate
acceleration and deceleration. Moderate
braking is particularly important since it
allows you to maximize the energy
captured by the regenerative braking
system.
Additional Tips:
• Do not carry extra loads.
• Be mindful of adding external
accessories that may increase
aerodynamic drag.
• Observe posted speed limits.
• Perform all scheduled maintenance.
• There is no need to wait for your engine
to warm up. The vehicle is ready to drive
immediately after starting.PLUG-IN HYBRID VEHICLE
OPERATION
Regularly plug in your vehicle to get optimal
electric-only range capability from the high
voltage battery. Charging your vehicle adds
electrical energy. This energy propels the
vehicle.
Estimated electric-only driving range shows
in blue next to the gasoline range on the
information display.
The system maximizes the use of
electric-only operation in normal drive mode.
System conditions could require the engine
to operate, however, the system uses the
available electric range whenever possible.
In Pure EV drive mode, your vehicle only
uses electric power unless you enable the
engine, or system conditions require the
engine to operate.Preserve EV drive mode saves the electric
range for later use. If you select this mode
and the battery is at full or near full charge,
it uses some electric-only range to discharge
the battery. This allows the regenerative
braking system to fully operate. If the battery
charge is low when selecting Preserve EV
mode, the engine charges the high voltage
battery to a minimum level. This provides
additional electric driving range. When the
battery charges to this level, Preserve EV
saves the electric range for later use.
Other drive modes appropriately make use
of electric power to help deliver the selected
drive mode experience. It could use available
electric-only range, if needed. See What Is
Drive Mode Control (page 343).
219
Unique Driving Characteristics

When the electric-only range reaches zero,
the powertrain system switches to hybrid
operation. This means the energy you gain
from plugging in and charging your vehicle
is now gone. Both the gasoline engine and
electric motor power your vehicle and
maximize fuel economy during hybrid
operation. Hybrid operation provides some
electric-only driving as the powertrain system
maintains the high voltage battery charge
level within functional limits.Low Engine Use
The low engine use mode properly lubricates
the engine at sufficient temperature and
activates when you drive your vehicle with
limited engine operation. When in low engine
use mode, your vehicle runs the engine as
necessary. When low engine use mode
begins, a message appears in the information
display. If low engine use mode does not
complete before you switch your vehicle off,
it continues the next time you start your
vehicle and the message reappears. See
Information Messages (page 142).Pure EV mode is not available during low
engine use mode.
Note:Cold temperatures affect the engine
warm up time and the low engine use mode
could operate more frequently.
Note:An oil change is not required but gives
you the option of not running a low engine
use cycle. Resetting the oil life monitoring
system suspends the low engine use mode.
220
Unique Driving Characteristics

Answer Question
In order to make sure that the climate control system can begin heating
the cabin or defrosting the windshield as soon as you request it, the
engine coolant temperature has to be kept sufficiently hot. Keeping
the engine on is required to maintain the correct coolant temperature. Why does my engine stay on when it is extremely cold outside?
Your hybrid vehicle can use E15 fuel (15% ethanol, 85% gasoline), but
you could notice slightly reduced fuel economy because ethanol
contains less energy per gallon than gasoline. Your hybrid vehicle is
not designed to use E85 (85% ethanol). Can I put E15 or E85 in my vehicle, and how will it affect my fuel
economy?
The high voltage battery system is designed to last the life of the
vehicle and requires no maintenance. How long will my high voltage battery last? Does it need maintenance?
222
Unique Driving Characteristics

SAFETY PRECAUTIONS
WARNING: Do not overfill the fuel
tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray
and fire.
WARNING: The fuel system may be
under pressure. If you hear a hissing sound
near the fuel filler inlet, do not refuel until
the sound stops. Otherwise, fuel may spray
out, which could cause serious personal
injury.
WARNING: Fuels can cause serious
injury or death if misused or mishandled.
WARNING: Fuel may contain
benzene, which is a cancer-causing agent.
WARNING: When refueling always
shut the engine off and never allow sparks
or open flames near the fuel tank filler
valve. Never smoke or use a cell phone
while refueling. Fuel vapor is extremely
hazardous under certain conditions. Avoid
inhaling excess fumes.
Follow these guidelines when refueling:
• Extinguish all smoking materials and any
open flames before refueling your
vehicle.
• Always switch the engine off before
refueling.
• Automotive fuels can be harmful or fatal
if swallowed. Fuel is highly toxic and if
swallowed can cause death or permanent
injury. If fuel is swallowed immediately
call a physician, even if no symptoms are
immediately apparent. The toxic effects
of fuel may not be apparent for hours.• Avoid inhaling fuel vapors. Inhaling fuel
vapor can lead to eye and respiratory
tract irritation. In severe cases, excessive
or prolonged breathing of fuel vapor can
cause serious illness and permanent
injury.
• Avoid getting fuel in your eyes. If you
splash fuel in your eyes, immediately
remove contact lenses (if worn), flush with
water for 15 minutes and seek medical
attention. Failure to seek proper medical
attention could lead to permanent injury.
• Fuels can be harmful if absorbed through
the skin. If you splash fuel on your skin,
clothing or both, promptly remove
contaminated clothing and thoroughly
wash your skin with soap and water.
Repeated or prolonged skin contact
causes skin irritation.
• Be particularly careful if you are taking
Antabuse or other forms of Disulfiram for
the treatment of alcoholism. Breathing
fuel vapors could cause an adverse
reaction, serious personal injury or
sickness. Immediately call a physician if
you experience any adverse reactions.
223
Fuel and Refueling

FUEL QUALITY
Choosing the Right Fuel
E161513E161513
Your vehicle is designed to operate on
regular unleaded gasoline with a minimum
pump (R+M)/2 octane rating of 87.
Some fuel stations, particularly those in high
altitude areas, offer fuels posted as regular
unleaded gasoline with an octane rating
below 87. The use of these fuels could result
in engine damage that is not covered by the
vehicle warranty.For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather as well as
other conditions, for example when towing
a trailer. See Towing (page 354).
Do not be concerned if the engine
sometimes knocks lightly. However, if the
engine knocks heavily while using fuel with
the recommended octane rating, contact an
authorized dealer to prevent any engine
damage.
We recommend Top Tier detergent
gasolines, where available to help minimize
engine deposits and maintain optimal vehicle
and engine performance. For additional
information, refer to www.toptiergas.com.
Note:Use of any fuel for which the vehicle
was not designed can impair the emission
control system, cause loss of vehicle
performance, and cause damage to the
engine which may not be covered by the
vehicle Warranty.Do not use:
• Diesel fuel.
• Fuels containing kerosene or paraffin.
• Fuel containing more than 15% ethanol
or E85 fuel.
• Fuels containing methanol.
• Fuels containing metallic-based additives,
including manganese-based compounds.
• Fuels containing the octane booster
additive, methylcyclopentadienyl
manganese tricarbonyl (MMT).
• Leaded fuel; using leaded fuel is
prohibited by law.
The use of fuels with metallic compounds
such as methylcyclopentadienyl manganese
tricarbonyl (commonly known as MMT), which
is a manganese-based fuel additives impair
engine performance and affect the emission
control system.
FUEL FILLER FUNNEL LOCATION
The fuel filler funnel is in the spare wheel
storage tray.
224
Fuel and Refueling