FORD 2010 Fusion Hybrid v.2 - Manual (Page 11)

Question Answer
Why does my engine stay
ON when it’s extremely
cold outside? In order to ensure that the climate
control system can begin heating the
cabin and/or defrosting the windshield as
soon as a driver requests it, the engine
coolant temperature has to be kept
sufficiently hot. Keeping the engine on is
required to maintain the correct minimum
temperature.
Why does my engine rev up
so high sometimes when I
accelerate? Your vehicle’s engine and transmission are
designed to deliver the power you need
at the most efficient engine speed. This
may be higher than expected during
heavy accelerations, and may fluctuate
during steady state driving. These are
characteristics of the Atkinson engine
cycle and the eCVT transmission
technology that help maximize your
hybrid’s fuel economy.
What is the fan noise I hear
from the rear of my hybrid? The fan noise comes from a fan located
inside the high voltage battery. This fan
turns on when the battery requires
cooling air. The fan speed, and associated
noise level, will change according to the
amount of cooling required to maintain
good performance. Maintaining the
battery temperature at optimal conditions
also prolongs the useful life of the battery
and helps to achieve better fuel economy.
How far can I go in Electric
Drive if I run out of gas? Running out of gas is not recommended.
However, you may be able to go about
one mile, driving at 30 mph (48 km/h), if
the battery has a normal state of charge.
Introduction
11
2010 Fusion Hybrid (hfv)
Owners Guide, 2nd Printing
USA (fus)