FORD 2013 Fusion Hybrid v.1 - Manual (Page 153)

Transmission Operation: Due to the
technologically advanced,
electronically-controlled continuously
variable transaxle, you will not feel shift
changes like those of a non-hybrid vehicle.
Note: Since engine speed is controlled by
the transmission, it may seem elevated at
times. This is normal hybrid operation and
helps deliver fuel efficiency and
performance.
Neutral: It is not recommended to idle the
vehicle in position N for extended periods
of time because this will discharge your
high voltage battery and decrease fuel
economy. The engine will not start, and
cannot provide power to the hybrid system
in position N.
Low Gear: Low gear (position L) is
designed to mimic the enhanced engine
braking available in non-hybrid vehicles.
Low gear will produce high engine speeds
to provide necessary engine braking. This
is normal and will not damage your vehicle.
In low gear, the gas engine will remain on
more often than in position D.
Reverse: In position R, vehicle speed is
limited to 22 mph (35 km/h).
Unique Hybrid Operating
Characteristics
Your vehicle behaves differently compared
to a non-hybrid. Here is a description of the
major differences:
Battery: Your hybrid is equipped with a
high voltage battery. A cool battery ensures
battery life and provides the best possible
performance. Your hybrid high voltage
battery may periodically re-condition itself
to ensure maximum efficiency. You may
notice slight changes in driveability during
this process, but it is an important part of
your hybrid's high voltage battery
optimization features.
The high voltage battery is cooled by cabin
air drawn from vent holes in the trim panels
behind the rear seats. Avoid placing objects
at the vent holes which block air flow to
the high voltage battery.
If the vehicle is left inoperative for over 31
days, it may be necessary to jump start the
vehicle. See Roadside Emergencies
(page 232).
Engine: The engine speed in your hybrid
is not directly tied to your vehicle speed.
Your vehicle's engine and transmission are
designed to deliver the power you need at
the most efficient engine speed. During
heavy accelerations, your hybrid may reach
high engine speeds (up to 6000 rpm).
In prolonged mountainous driving, you may
see the engine tachometer changing
without your input. This is intentional and
maintains the battery charge level. You
may also notice during extended 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 generator in the
hybrid system.
During certain events (such as vehicle
servicing) your low voltage (under hood)
battery may become disconnected or
disabled. Once the battery is reconnected
and after driving the vehicle, the engine
may continue to operate for three to five
seconds after the key is turned to off. This
is a normal condition.
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 your
high voltage battery.
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Unique Driving Characteristics