Toyota 2015 Sienna Manual page 410

410
6-1. Using the air conditioning system and defogger
■
Using automatic mode
Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after the "AUTO" button is pressed.
■
When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on
In order to reduce the air conditioning power consumption, the air condition-
●
ing system may switch to recirculated air mode automatically.
This may also reduce fuel consumption.
Recirculated air mode is selected as a default mode when the engine switch
●
is turned to the "ON" position (vehicles without a smart key system) or
IGNITION ON mode (vehicles with a smart key system).
It is possible to switch to outside air mode at any time by pressing
●
■
Fogging up of the windows
The windows will easily fog up when the humidity in the vehicle is high.
●
Pressing "A/C" button on will dehumidify the air from the outlets and defog
the windshield effectively.
If you turn "A/C" off, the windows may fog up more easily.
●
The windows may fog up if the recirculated air mode is used.
●
■
Outside/recirculated air mode
When driving on dusty roads such as tunnels or in heavy traffic, set
●
to the recirculated air mode. This is effective in preventing outside air from
entering the vehicle interior. During cooling operation, setting the recircu-
lated air mode will also cool the vehicle interior effectively.
Outside/recirculated air mode may automatically switch depending on the
●
temperature setting or the inside temperature.
SIENNA_OM_01999-08001_(U)
.