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HYBRID VEHICLE FREQUENTLY ASKED QUESTIONS - HYBRID
ELECTRIC VEHICLE (HEV)
AnswerQuestion
The high voltage battery is electrically isol-
ated from the rest of the vehicle when the
ignition is off. When you switch the ignition
on, the high voltage contacts inside the
battery are closed. This makes the electri-
city available to the motor and generator
and allows your vehicle to proceed. The
clicks are the sound of these contacts as
they close and open during start up and
shut down.
What are the series of clicks from the cargo
area when I switch the ignition on?
The vehicle's computer determines if an
engine start is required at key-on. Silent key
starts the engine if it is necessary for cabin
heating, windshield defrost, or if the outside
temperature is low.
Why does the engine sometimes start at
key-on?
There are several reasons the engine stays
on for an extended amount of time when
you first start it. One common reason is to
make sure that the emission's components
are warm enough to minimize tailpipe
emissions. As the climate gets cooler, this
engine-on time is extended.
Why does it take a long time before the
engine shuts down?
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?
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2022 Explorer (CTW) Canada/United States of America, enUSA, Edition date: 202107, First-Printing
Unique Driving Characteristics
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