Ford Fusion (2018 year). Manual — part 37

AUTO-START-STOP

(If Equipped)

The system helps reduce fuel consumption
by automatically shutting off and restarting
the engine while your vehicle is stopped.
The engine will restart 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 is turned off
when the engine is off.

WARNINGS

Always fully apply the parking brake.
Make sure you shift into park (P) for
vehicles with an automatic

transmission. Switch the ignition off and
remove the key whenever you leave your
vehicle.

Before opening the hood or
performing any maintenance, fully
apply the parking brake, shift into

park (P) or neutral (N) and switch the
ignition off.

Always switch the ignition off before
leaving the vehicle. If the ignition is
switched on an automatic restart

may occur at any time.

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
96).

Enabling Auto-Start-Stop

The system is automatically enabled every
time you start your vehicle if the following
conditions are met:

•

The Auto-Start-Stop button is not
pressed (not illuminated).

•

Your vehicle exceeds an initial speed
of 3 mph (5 km/h) after you have
initially started the vehicle.

•

Your vehicle is stopped.

•

Your foot is on the brake pedal.

•

The transmission is in drive (D).

•

The driver's door is closed.

•

There is adequate brake vacuum.

•

The interior compartment has been
cooled or warmed to an acceptable
level.

•

The front windshield defroster is off.

•

The steering wheel is not turned rapidly
or is not 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 at operating
temperature.

•

Elevation is below approximately
10,000 ft (3,050 m).

•

Ambient temperature is moderate.

The green Auto-Start-Stop
indicator light on the instrument
cluster will illuminate to indicate

when the automatic engine stop occurs.

E146361

If the instrument cluster is
equipped with a grey
Auto-Start-Stop indicator light,

it is illuminated when automatic engine
stop is not available due to one of the
above noted conditions not being met.

Automatic Engine Restart

Any of the following conditions will result
in an automatic restart of the engine:

•

Your foot is removed from the brake
pedal.

•

You press the accelerator pedal.

•

You press the accelerator and the
brake pedal at the same time.

•

The driver safety belt becomes
unfastened or the driver door is ajar.

•

The transmission is moved from drive
(D).

•

Your vehicle is moving.

•

The battery is not within optimal
operating conditions.

•

The maximum engine off time is
exceeded.

•

When you press the Auto-Start-Stop
button while the engine is stopped
automatically.

•

The heated windshield is turned on.

Any of the following conditions may result
in an automatic restart of the engine:

•

The blower fan speed is increased or
the climate control temperature is
changed.

•

An electrical accessory is turned on or
plugged in.

Disabling Auto-Start-Stop

E221544

Press the Auto-Start-Stop button located
on the center console to switch the system
off. The button will illuminate. The system
will only be deactivated for the current
ignition cycle. Press the button again to
restore Auto-Start-Stop function.

If your vehicle is in an Auto-Start-Stop
state and you shift the transmission to
reverse while the brake is not depressed,
a message telling you to press the brake
will appear. You must press the brake
pedal within 10 seconds, or a shift to park
and a manual restart will be required.

Note: If the Shift to P, Restart Engine
message appears and the amber
Auto-Start-Stop indicator light is flashing,
automatic restart is not available. The
vehicle must be restarted manually. See
Information Displays (page 96).

SAFETY PRECAUTIONS

WARNINGS

Do not overfill the fuel tank. The
pressure in an overfilled tank may
cause leakage and lead to fuel spray

and fire.

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.

Fuels can cause serious injury or
death if misused or mishandled.

Fuel may contain benzene, which is
a cancer-causing agent.

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.

FUEL QUALITY

Choosing the Right Fuel

E161513

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. We do not recommend
these fuels.

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 222).

Do not use any fuel other than those
recommended because they could lead to
engine damage that will not be covered by
the vehicle Warranty.

Note: Use of any fuel other than those
recommended can impair the emission
control system and cause a loss of vehicle
performance.

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 additive, will impair engine
performance and affect the emission
control system.

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.

FUEL FILLER FUNNEL
LOCATION

The fuel filler funnel is under the luggage
compartment floor covering.

E162449

RUNNING OUT OF FUEL

Running out of fuel can cause damage not
covered by the vehicle Warranty.

If your vehicle runs out of fuel:
•

Add a minimum of 1.3 gal (5 L) of fuel
to restart the engine.

•

You may need to switch the ignition
from off to on several times after
refueling to allow the fuel system to
pump the fuel from the tank to the
engine. When restarting, cranking time
takes a few seconds longer than
normal.

Note: If your vehicle is on a steep slope,
more fuel may be required.