Toyota Grand Highlander (AS10) 2024 Owners Manual / Interior features / Using the air conditioning system and defogger / Front automatic air conditioning system

Toyota Grand Highlander (AS10): Front automatic air conditioning system

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

The air conditioning system can be displayed and operated on the Multimedia Display.

Air conditioning controls

1. Automatic mode switch
2. Left-hand side temperature control switch
3. "OFF" switch
4. Windshield defogger switch
5. Rear air conditioning system on/off switch
6. S-FLOW mode switch
7. Right-hand side temperature control switch
8. "A/C" switch
9. Outside/recirculated air mode switch
10. "REAR CLIMATE" switch
11. Rear seat temperature control knob
12. Airflow mode control knob
13. Fan speed control knob
14. "SYNC" control knob
15. Rear window defogger and outside rear view mirror defoggers switch
16. Windshield wiper de-icer switch

■ Adjusting the temperature setting

Turn driver's side temperature control switch clockwise to increases the temperature and turn the switch counterclockwise to decreases the temperature.

If "A/C" switch is not pressed, the system will blow ambient temperature air or heated air.

The temperature for the driver, front passenger and rear seats can be adjusted separately when:

• "SYNC" control knob is moved upward or downward.

  (The "PASS" and "REAR" displays disappear)

• The passenger's side temperature control switch is turned. (The "PASS" display disappears)
• The rear seat temperature control knob is moved upward or downward. (The "REAR" display disappears)

To switch the air conditioning system between individual and simultaneous modes, move "SYNC" control knob upward or downward.

■ Setting the fan speed

To set the fan speed, move the fan speed control knob upward or downward.

Upward: Increases the fan speed

Downward: Decreases the fan speed

Pressing the "OFF" switch turns off the fan.

■ Change the airflow mode

To change the airflow mode, move the airflow mode control knob upward or downward.

1. Upper body
2. Upper body and feet
3. Feet
4. Feet and the windshield defogger operates

■ Switching between outside air and recirculated air modes

Press the outside/recirculated air mode switch.

The mode switches between outside air mode and recirculated air mode each time the switch is operated.

When recirculated air mode is selected, the indicator illuminates on the outside/recirculated air mode switch.

■ Set cooling and dehumidification function

Press the "A/C" switch.

When the function is on, the indicator illuminates on the "A/C" switch.

■ Defogging the windshield

Defoggers are used to defog the windshield 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 quickly, turn the air flow and temperature up.

To return to the previous mode, press the windshield defogger switch again when the windshield is defogged.

When the windshield defogger switch is on, the indicator illuminates on the windshield defogger switch.

■ 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 defogger and outside rear view mirror defoggers switch.

When the rear window defogger and outside rear view mirror defoggers defoggers switch is on, the indicator illuminates on the rear window defogger and outside rear view mirror defoggers switch.

The defoggers will automatically turn off after a while.

■ Windshield wiper de-icer

This feature is used to prevent ice from building up on the windshield and wiper blades.

Press the windshield wiper de-icer switch.

When the windshield wiper de-icer switch is on, the indicator illuminates on the windshield wiper de-icer switch.

The windshield wiper de-icer will automatically turn off after a period of time.

■When the outside temperature exceeds 75ºF (24ºC) 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 ON.
• It is possible to switch to outside air mode at any time by pressing the outside air mode switch.

■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 depending on the temperature setting or the inside temperature.

■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:
  • Adjust the fan speed
  • Turn off Eco drive mode

■When the outside temperature is low

The dehumidification function may not operate even when the "A/C" switch is pressed.

■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.
• When parking, the system automatically switches to outside air mode to encourage better air circulation throughout the vehicle, helping to reduce odors that occur when starting the vehicle.

■Air conditioning system operations when the engine is stopped due to the Stop & Start system

When the engine is stopped due to Stop & Start system operations, the automatic air conditioning cooling, heating and dehumidification functions turn off and the fan speed is decreased according to the outside temperature etc. or air blowing stops. To stop the air conditioning system from turning off, press the Stop & Start cancel switch and refrain from using the Stop & Start system.

■When the windshield is fogged up and the engine is stopped due to the Stop & Start system

Press the windshield defogger switch to restart the engine and defog the windshield.

If the windshield continuously fogs up, press the Stop & Start cancel switch and refrain from using the Stop & Start system.

■When an odor comes from the air conditioning system while the engine is stopped due to the Stop & Start system

Press the Stop & Start cancel switch to restart the engine.

■Air conditioning system refrigerant

• A label regarding the refrigerant of the air conditioning system is attached to 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

Some functions can be customized.

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 rear view mirror surfaces when the outside rear view mirror defoggers are on.

■When the windshield wiper de-icer is operating

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 off.

■When repairing/replacing parts of the air conditioning system

Have repair/replacement performed by your Toyota 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.