Rear Air Conditioning - Lexus LS 600h L 2015 Owner's Manual

When the outside temperature exceeds 75°F (24°C) and the air conditioning sys-
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tem is on
In order to reduce the air conditioning power consumption, the air conditioning
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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 power switch is
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turned on.
It is possible to switch to outside air mode at any time by pressing
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When the hybrid battery cooling system operates
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If the hybrid battery cooling system operates when the air conditioning is off, a
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message will be shown on the multi-information display and the air conditioning will
automatically turn on. (P. 105)
The sound of the air flow may change when cool air flows from the rear roof vents
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or the air purifier is in operation. This occurs when the hybrid battery is being
cooled and does not indicate a malfunction.
Automatic mode for air intake control
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In automatic mode, the system detects exhaust gas and other pollutants and auto-
matically switches between outside air and recirculated air modes.
When the dehumidification function is off, and the fan is operating, turning automatic
mode on will activate the dehumidification function.
Micro dust and pollen filter
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In order to prevent the windshield from fogging up when the outside air is cold, the
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following may occur:
• Outside air mode does not switch to
• The dehumidification function operates.
• The operation cancels after approximately 1 minute.
In rainy weather, the windows may fog up. Press
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In extremely humid weather, the windows may fog up.
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The pollens are filtered out even if the micro dust and pollen filter is turned off.
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Air purifier
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The air purifier will turn on when turning the rear air conditioning system on.
When the outside temperature falls to nearly 32F (0C)
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The dehumidification function may not operate even when "A/C" is selected.
LS600hL_U(OM50E41U)
5-3. Using the air conditioning system and defogger
(recirculated air) mode.
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349
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