Fogging Up Of The Windows; Outside/Recirculated Air Mode; When The Outside Temperature Exceeds 75 F (24 C) And The Air Conditioning System Is On - Lexus 2016 IS 200t Service Manual

374
6-1. Using the air conditioning system
Using automatic mode
■
Fan speed is adjusted automatically according to the temperature setting and the ambi-
ent conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow immediately
after is pressed or "AUTO" is selected.
Using the voice command system (vehicles with a navigation system)
■
Air conditioning system can be operated using voice commands. For details, refer to the
"NAVIGATION SYSTEM OWNER'S MANUAL".

Fogging up of the windows

■
The windows will easily fog up when the humidity in the vehicle is high. Turning
("A/C") on will dehumidify the air from the outlets and defog the windshield effectively.
If you turn
●
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 the outside/recircu-
●
lated air mode button to the recirculated air mode. This is effective in preventing out-
side air from entering the vehicle interior. During cooling operation, setting the
recirculated air mode will also cool the vehicle interior effectively.
Outside/recirculated air mode may automatically switch depending on the tempera-
●
ture setting or the inside temperature.
When the outside temperature exceeds 75F (24C) and the air conditioning system
■
is on
In order to reduce the air conditioning power consumption, the air conditioning system
●
may switch to recirculated air mode automatically. This may also reduce fuel consump-
tion.
Recirculated air mode is selected as a default mode when the engine switch is turned to
●
IGNITION ON mode.
It is possible to switch to outside air mode at any time by pressing
●
Operation of the air conditioning system in Eco drive mode
■
In Eco drive mode, the air conditioning system is controlled as follows to prioritize fuel
efficiency:
Engine speed and compressor operation controlled to restrict heating/cooling capac-
●
ity
Fan speed restricted when automatic mode is selected
●
To improve air conditioning performance, perform the following operations:
Adjust the fan speed
●
Turn off Eco drive mode
●
IS350/300/200t_U (OM53D18U)
("A/C") off, the windows may fog up more easily.
.