[Upbeat music plays] 
Some Toyota vehicles
are equipped
with active grille shutters,
which help to reduce
aerodynamic drag
for even greater
fuel economy.
The active grille shutters
are located behind
your vehicle's
lower grille opening
and control airflow. 
The grille shutters
open and close automatically,
depending on a variety
of conditions,
to maintain suitable
cooling airflow
for the engine and,
in hybrid models,
the electric inverter.
When the power switch
is ON and the engine coolant
temperature is below 40°C
the grille shutters are closed.
They remain closed until
the engine coolant temperature
reaches at least 75°C.
Keeping the shutters closed
in these conditions allows
the engine to reach optimal
operating temperature
more quickly after a cold start,
helping to save fuel.
After the engine is warmed up,
the shutters normally remained
closed at speeds between
approximately 60 and 150 km/h,
to reduce aerodynamic drag
from air flowing through
the engine compartment
and thus enhance fuel economy.
When the vehicle is traveling
and the air-conditioning
system is operating,
the grille shutters open
and close as needed,
in accordance
with vehicle speed,
outside air temperature,
and other factors.
The grille shutters automatically
open when the outside
temperature reaches
approximately 35°C, or higher,
and/or when the engine coolant
temperature reaches approximately
97°C, or higher. 
When the vehicle is off,
the grille shutters
automatically
open to prevent them
from becoming stuck
in the closed
position while the vehicle
is stopped.
When the ambient
temperature is 5°C or lower,
a Winter Control Mode function
suspends grille shutter
operation
and stops the grille shutters
at a position
other than fully closed,
to prevent them from
becoming frozen closed. 
Winter control mode is canceled
when the outside temperature
reaches 10°C or higher.
The features and functions
described in this video
might not be applicable
to your Toyota model. 
See your Owner's
Manual for details.
Thanks for watching
this Know Your Toyota video.
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