2022 Toyota Sienna Owners Manual - Using the air conditioning system and defogger

Using the air conditioning system and defogger

Front automatic air conditioning system

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

Air conditioning controls

Adjusting the temperature setting

Turn the “TEMP” dial clockwise to increase the temperature and counterclockwise to decrease the temperature.

The “SYNC” button

The air conditioning system switches between individual (indicator( s) off) and simultaneous (indicators on) modes.

When the air conditioning system is in simultaneous mode, the passenger and/or rear side temperature will be synchronized with driver side’s.

• The air conditioning system switches simultaneous

Press the “SYNC” button. (indicators on)

1. Driver side indicator
2. Passenger side indicator When the indicator is on, the passenger side temperature will be synchronized with driver side.
3. Rear side indicator When the indicator is on*, the rear side temperature will be synchronized with driver side.

*: When the rear air conditioning system is on.

• The air conditioning system switches individual

The temperature for the driver, passenger and/or rear seats side can be adjusted separately.

When all indicators on the “SYNC” button are on:

• Press the “SYNC” button. (All indicators will turn off.)
• The “PASS TEMP” dial is turned. (The passenger side indicator will turn off.)
• The “REAR TEMP” dial is turned. (The rear side indicator will turn off.)

When two indicators on the “SYNC” button are on:

• Press the “SYNC” button a second time. (All indicators will turn off.)

If both the temperature of the passenger and rear seats side are changed, all indicators on the button will be off.

Adjusting the fan speed setting

Press “” on
 to increase the fan speed and “”
to decrease the fan speed.

Press to turn the fan off.

Change the airflow mode

To change the air outlets, press the “MODE” button.

The air outlets used are switched each time the button is pressed.

1. Air flows to the upper body.
2. Air flows to the upper body and feet.
3. Air flows to the feet.
4. Air flows to the feet and the windshield defogger operates.

Using the automatic mode

1. Press the “AUTO” button (“AUTO” appears on the display).
2. Adjust the temperature setting.
3. To stop the operation, press .



 
4.  

Automatic mode indicator

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.

Changing the rear setting

Adjusting the temperature setting

1. Press the “REAR” button (indicator and rear temperature on the display on).
2. Turn the “REAR TEMP” dial clockwise to increase the temperature and counterclockwise to decrease the temperature.

   The air conditioning system switches between individual (the lower side indicator on the “SYNC” button is off) and simultaneous (the lower side indicator on the “SYNC” button is on) modes each time the “SYNC” button is pressed.

Adjusting the fan speed

Press “” on
to increase the fan speed and “”
to decrease the fan speed.

Press to turn the fan off.

Changing the air outlets

Press the “REAR MODE” button.

The air outlets switch each time the button is pressed.

Other functions

Switching between outside air and recirculated air modes

Press .

The mode switches between outside air mode (
appears on the display) and recirculated air mode (
appears on the display) each time the button is pressed.

Defogging the windshield

Defoggers are used to defog the windshield and front side windows.

Press .

Set  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  again when the windshield
is defogged.

Rear window defogger, outside rear view mirror defoggers (if equipped) and windshield wiper de-icer (if equipped)

Defoggers are used to defog the rear window, and to remove raindrops, dew and frost from the outside rear view mirrors. The windshield wiper de-icer is used to prevent ice from building up on the windshield and wiper blades.

Press .

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

Air outlets

Location of air outlets

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

Adjusting the position of and opening and closing the air outlets

• Center outlets

• Right and left side outlets

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

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 “AUTO” button is pressed.

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 the “ON” position (vehicles without a smart key system) or IGNITION ON mode (vehicles with a smart key system).
• It is possible to switch to outside air mode at any time by pressing .



 
•  

Fogging up of the windows

• The windows will easily fog up when the humidity in the vehicle is high.

  Pressing “A/C” button 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.

Outside/recirculated air mode

• When driving on dusty roads such as tunnels or in heavy traffic, set 
  to the recirculated air mode. This is effective in preventing outside 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 temperature setting or the inside temperature.

Temperature display

The temperature display on the multi-information display can be changed.

When  is selected for the air
outlets used

For your driving comfort, air flowing to the feet may be warmer than air flowing to the upper body depending on the temperature setting.

When the outside temperature is low

The dehumidification function may not operate even when the “A/C” button is pressed.

When “A/C ON” flashes in the display

Press the “A/C” button and turn off the air conditioning system before turning it on once more. There may be a problem in the air conditioning system if “A/C ON” continues to flash. Turn the air conditioning system off and have it inspected by your Toyota dealer.

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.

Air conditioning filter

Customization

Settings (e.g. “AUTO” button linked operation) can be changed.

Rear automatic air conditioning system

Airflow and outlets are automatically adjusted according to the temperature setting.

Air conditioning controls

Adjusting the temperature setting

Press “” on the “TEMP” button to
increase the temperature and “”
to decrease the temperature.

Adjusting the fan speed

Press “” on
 to increase the fan speed and “”
to decrease the fan speed.

Press the “OFF” button to turn the fan off.

Changing the air outlets

Press the “MODE” button.

The air flow mode switch each time the button is pressed.

1. Air flows to the upper body.
2. Air flows to the upper body and feet.
3. Air flows to the feet.

Using automatic mode

1. Press the “AUTO” button (“AUTO” appears on the display).
2. Adjust the temperature setting.
3. To stop the operation, press the “OFF” button.

Automatic mode indicator

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 are maintained.

Air outlets

Location of air outlets

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

Adjusting the position of the air outlets

Direct air flow to the front or rear, up or down.

Temperature display

The temperature display on the multi-information display can be changed.

When the front air conditioning system is in simultaneous mode

The lower side indicator on the “SYNC” button is on. The rear air conditioning system controls will continue to function.

Heated steering wheel/seat heaters

Heated steering wheel and seat heaters heat the side grips of the steering wheel and seats, respectively.

Heated steering wheel

Turns the heated steering wheel on/off The indicator light comes on when the heated steering wheel is operating.

• The heated steering wheel can be used when the engine switch is in IGNITION ON mode.
• The heated steering wheel will automatically turn off after about 30 minutes.

Seat heaters

1. For driver’s seat
2. For front passenger’s seat
3. On
   The indicator light comes on.
4. Adjusts the seat temperature The further you move the dial upward, the warmer the seat becomes.

• The seat heaters can be used when the engine switch is in the “ON” position (vehicles without a smart key system) or IGNITION ON mode (vehicles with a smart key system).
• When not in use, move the dial fully downward. The indicator light turns off.