Lexus ES250 2023 Air Conditioning System User Manual

I present to you the Lexus ES250 2023 Air Conditioning System. The Lexus ES250 2023, a premium sedan that spares no effort to deliver a great driving experience, welcomes you to the world of luxury and comfort. The ES250’s cutting-edge air conditioning system, created to offer maximum comfort for the driver and passengers, is one of its distinguishing features. The Lexus ES250 2023’s air conditioning system is evidence of Lexus’ dedication to quality and innovation. It is precisely constructed to provide effective and reliable cooling performance regardless of the weather outside. The ES250’s air conditioning system will keep you cool and refreshed during your trip, regardless of whether you’re travelling through oppressive summer heat or through humid environments.

Air Conditioning System

• Left-hand side temperature control switch
• Automatic mode switch
• Off switch
• Fan speed decrease switch
• Fan speed increase switch
• Airflow mode control switch
• Windshield defogger switch
• Rear window and outside rear view mirror defoggers switch Outside/recirculated air mode switch
• Right-hand side temperature control switch

Adjusting the temperature
Operate the temperature control switch upwards to increase the temperature and downwards to decrease the temperature. If the “A/C” indicator is turned off, the system will blow ambient temperature air or heated air.

Setting the fan speed
Operate the fan speed increase switch to increase the fan speed and the fan speed decrease switch to decrease the fan speed.
Press the off switch to turn the fan off.

• Changing the air flow mode Press the airflow mode control switch. The mode changes as follows each time the switch is pressed. (P.258)
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• Switching between outside air and recirculated air modes
• Press the outside/recirculated air mode switch. The mode changes as follows each time the switch is pressed. (recirculated air mode) automatic mode
• (outside air mode)  (recirculated air mode)
• When the system is switched to automatic mode, the air conditioning system operates automatically. This item cannot be selected when the air conditioning is off.
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• Defogging the windshield
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• Defoggers are used to defog the wind-shield and front side windows.
• Press the windshield defogger switch.
• Set the outside/recirculated air mode switch to outside air mode if the recirculated air mode is used. (It may switch automatically.)
• To defog the windshield and the side windows early, turn the air flow and temperature up.
• To return to the previous mode, press the windshield defogger switch again when the windshield is defogged.

Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window, and to remove raindrops, dew and frost from the outside rear view mirrors. Press the rear window and outside rear view mirror defoggers switch. The defoggers will automatically turn off after 15 to 60 minutes. The operation time changes according to the ambient temperature and vehicle speed.

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 to IGNITION ON mode.
  • It is possible to switch to outside air mode at any time by pressing the outside/recirculated air mode switch.
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• 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 “A/C” off, the windows may fog up more easily.
  • The windows may fog up if the recirculated air mode is used.

When driving on dusty roads
Close all windows. If dust thrown up by the vehicle is still drawn into the vehicle after closing the windows, it is recommended that the air intake mode be set to outside air mode and the fan speed to any setting except off.

Outside/recirculated air mode

• Setting to the recirculated air mode temporarily is recommended in preventing dirty air from entering the vehicle interior and helping to cool the vehicle when the outside air temperature is high. Outside/recirculated air mode may automatically switch regardless of the air conditioning setting depending on the temperature setting or inside temperature.

Registering air conditioning settings to electronic keys

• • Unlocking the vehicle using an electronic key and turning the engine switch to IGNITION ON mode will recall that key’s registered air conditioning settings.
  • When the engine switch is turned off, the current air conditioning settings will automatically be registered to the electronic key that was used to unlock the vehicle.
  • The system may not operate correctly if more than one electronic key is in the vicinity or if the smart access system with push-button start is used to unlock the passenger door.
  • Vehicles with the driving position memory: The doors that can recall the air conditioning setting* when unlocked using the smart access system with push-but-ton start can be changed. For details, contact your Lexus dealer *: The doors that can recall the driving position memory are changed at the same time.
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• 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 capacity
  • Fan speed restricted when automatic mode is selected

To improve air conditioning performance, perform the following operations:

• • Turn off eco air conditioning mode P.259)
    • Adjust the fan speed
    • Turn off Eco drive mode (P.210)

The dehumidification function may not operate even when “A/C” 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 occur-ring, 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.
•  When parking, the system automatically switches to fresh air intake mode to encourage better air circulation through-out the vehicle, helping to reduce odors that occur when starting the vehicle.

Using the Intelligent Assistant
Air conditioning system can be operated using voice commands. For details, refer to the “MULTIMEDIA OWNER’S MAN-UAL”.

Air conditioning filter
P.328

Air conditioning system refrigerant

• A label regarding the refrigerant of the air conditioning system is attached to the hood at the location shown in the following illustration.
  
• The meaning of each symbol on the label are as follows:

• 	Caution
  	Air conditioning system
  	Air conditioning system lubricant type
  	Requires registered technician to service air conditioning system
  	Flammable refrigerant

Customization
Settings (e.g. A/C Auto switch operation) can be changed.
(Customizable features: P.404)

WARNING
To prevent the windshield from fogging up
Do not use the windshield defogger switch 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.

When the outside rear view mirror defoggers are operating
Do not touch the outside rear view mirror surfaces, as they can become very hot and burn you.

NOTICE
To prevent battery discharge
Do not leave the air conditioning system on longer than necessary when the engine is off.

When repairing/replacing parts of the air conditioning system
Have repair/replacement performed by your Lexus dealer. When a part of the air conditioning system, such as the evaporator, is to be replaced, it must be replaced with a new one.

Air conditioning control screen

1.  Select in the main menu on the Center Display.
2. Select “Climate”.
3. Select “Front”

Sub menu
Selecting the sub menu item to switch the screen display. “Front”: Display the air conditioning control screen “Options”: Display the option screen.

Select the air flow mode
Each time the switch is selected, the airflow mode is changed.

Air flows to the upper body
Air flows to the upper body and feet
Air flows to the feet

Air flows to the feet and the wind-shield defogger operate

 Turn the function on/off

Each of the following functions can be switched on and off. When the function is on, the indicator illuminates on the control screen. “A/C”: Set cooling and dehumidification function
“Sync”: Adjust the temperature for driver seat and front passenger seat simultaneously (“Sync” mode) (P.260)
“Climate concierge”: Set Lexus Climate Concierge (P.254)

Fan speed level display
The current fan speed level is displayed.

Option screen
Select “Options” on the air conditioning control screen (P.258).

The functions can be switched (on) and (off).

• Set eco air conditioning mode Air conditioning and heater output is limited to prioritize fuel economy.
  Prevent ice from building up on the windshield and wiper blades (Windshield wiper deicer) (if equipped)

Windshield wiper deicer (if equipped)

This feature is used to prevent ice from building up on the windshield and wiper blades. The windshield wiper deicer will automatically turn off after approximately 15 minutes.

Eco air conditioning mode
When Eco drive mode is selected using the Driving 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.

WARNING
To prevent burns (vehicles with wind-shield wiper deicer)
Do not touch the glass at lower part of the windshield or to the side of the front pillars when the windshield wiper deicer is on.

Using automatic mode

1. Press the automatic mode switch.
2. Press the outside/recirculated air mode switch to switch to automatic air intake mode. The air conditioning system automatically switches between outside air and recirculated air modes.
3. Adjust the temperature setting.
4.  To stop the operation, press the off switch.

If the fan speed setting or air flow modes are operated, the automatic mode indicator goes off. However, automatic mode for functions other than that operated is maintained.

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 automatic mode switch is pressed. Cool air may blow around the upper body even when the heater is on due to sunlight.

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. The next time the dehumidification function is turned off, the automatic mode for switching between outside air and recirculated air modes is canceled.

Adjusting the temperature for driver seat and front passenger seat simultaneously (“Sync” mode)
To turn on the “Sync” mode, select the “Sync” on the air conditioning control screen. The driver’s side temperature control switches can be used to adjust the temperature for the driver’s seat and passenger’s seat side. To enter individual mode, operate the passenger’s side temperature control switches or select the “Sync” again. The indicator on the air conditioning control screen comes on when the “Sync” mode is on.

Air outlet layout and operations

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
Front center/front side

1.  Direct air flow to the left or right, up or down
2.  Turn the knob to open or close the vent

1. Direct air flow to the left or right, up or down
2. Turn the knob to open or close the vent.

WARNING
To prevent the windshield defogger from operating improperly
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.

FAQ