the vehicle exterior. Lexus GS350, GS300

5-2. Using the air conditioning system and defogger

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■ 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 consumption.

■

●

●

Recirculated air mode is selected as a default mode when the engine switch is turned on.

It is possible to switch to outside air mode at any time by pressing

Automatic mode for air intake control

.

In automatic mode, the system detects exhaust gas and other pollutants and automatically 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.

Operation of the air conditioning system in Eco drive mode

In the 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 capacity

■

● Fan speed restricted when automatic mode is selected

To improve air conditioning performance, perform the following operations:

● Turn off eco air conditioning mode

● Adjust the fan speed

● Turn off Eco drive mode (

Eco air conditioning mode

 P. 281)

When Eco drive mode is selected using the drive mode select switch, eco air conditioning mode turns on.

When a drive mode other than Eco drive mode is selected, eco air conditioning mode may turn off.

■ When the S-FLOW mode operates

If air flows to the driver’s seat only, the temperature setting for the front passenger’s seat is not displayed.

■ When the outside temperature is low

The dehumidification function may not operate even when “A/C” on the option control screen is selected.

■ Ventilation and air conditioning odors

● To let fresh air in, set the air conditioning system to the outside air mode.

●

●

During use, various odors from inside and outside the vehicle may enter into and accumulate in the air conditioning system. This may then cause odor to be emitted from the vents.

To reduce potential odors from occurring:

• It is recommended that the air conditioning system be set to outside air mode prior to turning the vehicle off.

• The start timing of the blower may be delayed for a short period of time immediately after the air conditioning system is started in automatic mode.

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5-2. Using the air conditioning system and defogger

■ Air conditioning filter

 P. 410

■ Customization

Settings (e.g. exhaust gas sensor sensitivity) can be changed.

(Customizable features: 

P. 549)

WARNING

■ To prevent the windshield from fogging up

● Do not use during cool air operation in extremely humid weather. The difference between the temperature of the outside air and that of the windshield can cause the outer surface of the windshield to fog up, blocking your vision.

● Do not place anything on the instrument panel which may cover the air outlets. Otherwise, air flow may be obstructed, preventing the windshield defoggers from defogging.

■ To prevent burns

●

●

Do not touch the rear view mirror surfaces when the outside rear view mirror defoggers are on.

Vehicles with windshield wiper de-icer: Do not touch the glass at lower part of the windshield or to the side of the front pillars when the windshield wiper de-icer is on.

NOTICE

■ To prevent battery discharge

Do not leave the air conditioning system on longer than necessary when the engine is stopped.

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5-2. Using the air conditioning system and defogger

Rear air conditioning system



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Air outlets and fan speed are automatically adjusted according to the temperature setting.

Control panel

1 Set automatic mode on/off

2

■

Turn the fan off

Adjusting the temperature setting

3

4

Change the airflow mode

Adjust the temperature setting

Press “  ” on to increase the temperature and “  ” to decrease the

■ temperature.

Changing the air outlets

Press .

The air outlets change as follows each time

: Air flows to the upper body.

: Air flows to the upper body and feet.

: Air flows to the feet.

is pressed.



: If equipped

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5-2. Using the air conditioning system and defogger

Using automatic air conditioning system

2

1 Press .

The air conditioning system will operate, and air outlets and fan speed will be adjusted automatically.

“AUTO” will be displayed on the control panel.

Adjust the temperature setting.

When the rear seat heaters are set to “AUTO” mode, the system is operated automatically according to the set temperature, outside temperature, etc.

To stop the operation, press the “OFF” button.

Air outlets

■ Location of air outlets

The air outlets and air volume changes according to the selected air flow mode.

■ Adjusting the air flow direction and opening/closing the air outlets

1 Direct air flow to the left or right, up or down.

2 Turn the knob to open or close the vent.

GS350_300_OM_OM30G96U_(U)