Toyota Tundra (2019 year). Manual - part 27

417

6-1. Using the air conditioning system

6

Interio

r features

■

Fogging up of the windows

●

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

Turning 

 on will dehumidify the air from the outlets and defog the

windshield effectively.

●

If you turn 

 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 the out-
side/recirculated air mode button 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.

■

When the outside temperature exceeds 75

F (24C) and air conditioning

system is on

●

In order to reduce the air conditioning power consumption, the air condition-
ing 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 in the “ON” position.

●

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

.

■

When the outside temperature falls to nearly 32

F (0C)

The  dehumidification  function  may  not  operate  even  when 

  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.

■

Air conditioning filter

P. 513

418

6-1. Using the air conditioning system

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 wind-
shield  can  cause  the  outer  surface  of  the  windshield  to  fog  up,  blocking
your vision.

■

To prevent burns (vehicles with rear view mirror defoggers and wind-
shield wiper de-icer)

●

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

●

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.

●

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

419

6-1. Using the air conditioning system

6

Interio

r features

Automatic air conditioning system



■

Adjusting the temperature setting
To  adjust  the  temperature  set-
ting,  turn  the  temperature  con-
trol  dial  clockwise  (warm)  or
counterclockwise (cool).

If 

 is not pressed, the sys-

tem  will  blow  ambient  tempera-
ture air or heated air.
The  air  conditioning  system
switches between individual and
simultaneous  mode  each  time

 is pressed. (

P. 420)

■

Fan speed setting

To adjust the fan speed, press “

” on 

 to increase the fan speed

and “

” to decrease the fan speed.

Press 

 to turn the fan off.



: If equipped

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

Air conditioning controls

420

6-1. Using the air conditioning system

■

Change the airflow mode
To change the airflow, press 

.

Air outlets are adjusted each time the button is pressed.

■

Other functions
● Switching between outside air and recirculated air modes 

(

P. 421)

● Defogging the windshield (P. 421)
● Defogging the back window (CrewMax models) (P. 421)
● Defogging the outside rear view mirrors (if equipped) (P. 421)
● Windshield wiper de-icer (if equipped) (P. 422)

Press 

.

Adjust the temperature setting.

To stop the operation, press 

.

■

Automatic mode indicator
If the fan speed setting or air flow modes are operated, the auto-
matic mode indicator goes off. However, automatic mode for func-
tions other than that operated are maintained.

■

Adjusting the temperature for driver and passenger seats sep-
arately (“SYNC” mode)
The air conditioning system switches between individual and simul-
taneous mode each time 

 is pressed.

Simultaneous mode (the indicator on 

 is on): 

The driver’s side temperature control dial can be used to adjust the
temperature  for  driver’s  and  front  passenger’s  side. At  this  time,
operate the front passenger’s side temperature control dial to enter
individual mode.
Individual mode (the indicator on 

 is off): 

The temperature for the driver’s and front passenger’s side can be
adjusted separately.

Using by automatic mode

1

2

3

421

6-1. Using the air conditioning system

6

Interio

r features

■

Switching between outside air and recirculated air modes
Press 

.

The mode switches between outside air mode (introduces air from
outside the vehicle) (indicator off) and recirculated air mode (recy-
cles  air  inside  the  vehicle)  (indicator  on)  each  time  the  button  is
pressed.

■

Defogging the windshield
Defoggers  are  used  to  defog  the  windshield  and  front  side  win-
dows.
Press 

.

Set the outside/recirculated air mode button to outside air mode if the recir-
culated air mode is used. (It may switch automatically.) To defog the wind-
shield 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.

■

Defogging the back window (CrewMax models)
Defogger is used to defog the back window.
Press 

.

The defogger will automatically turn off after approximately 15 minutes.

■

Defogging the outside rear view mirrors (if equipped)
Defogger is used to defog to remove raindrops, dew and frost from
the outside rear view mirrors.
Press 

 or 

.

The defogger will automatically turn off after approximately 15 minutes. 
CrewMax models: Turning the back window defogger on will turn the out-
side rear view mirror defoggers on.

Other functions

422

6-1. Using the air conditioning system

■

Windshield wiper de-icer (if equipped)
This  feature  is  used  to  prevent  ice  from  building  up  on  the  wind-
shield and wiper blades.
Press 

 or 

.

The defogger will automatically turn off after approximately 15 minutes. 
Double Cab models: Turning the outside rear view mirror defoggers on will
turn the windshield wiper de-icer on. 
CrewMax models: Turning the back window defogger on will turn the wind-
shield wiper de-icer on.

■

Location of air outlets
Air  outlets  and  air  volume
changes  according  to  the
selected airflow mode.

*

: CrewMax models

■

Adjusting the position of and opening and closing the air out-
lets



Front

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

Air outlets

*

423

6-1. Using the air conditioning system

6

Interio

r features

Open the vent
Close the vent



Rear (CrewMax models)

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

1

2

1

2

424

6-1. Using the air conditioning system

■

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 

 is pressed.

■

Fogging up of the windows

●

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

  on  will  dehumidify  the  air  from  the  outlets  and  defog  the

windshield effectively.

●

If you turn 

 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 the out-
side/recirculated air mode button to the recirculated air mode. This is effec-
tive  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.

■

When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on

●

In order to reduce the air conditioning power consumption, the air condition-
ing 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 in the “ON” position.

●

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

.

■

When the outside temperature falls to nearly 32

F (0C)

The dehumidification function may not operate even when 

 is selected.

425

6-1. Using the air conditioning system

6

Interio

r features

■

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
P. 513

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, block-
ing your vision.

■

To prevent burns (vehicles with rear view mirror defoggers and wind-
shield wiper de-icer)

●

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

●

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.

●

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

426

6-1. Using the air conditioning system

Seat heaters



/seat ventilators



Turns the seat heater on

Hi
Mid
Lo
Off

The level indicator lights come on.
Press  the  “

”  on  the  button  to  up

and “

” to down, and off.

■

Seat heater

Turns the seat heater on

Hi
Mid
Lo
Off

The level indicator lights come on.
Pressing  the  button  changes
modes in the following: 
Hi

MidLoOff



: If equipped

The  seat  heaters  and  ventilators  heat  the  seats  and  maintain
good airflow by blowing air from the seats.

Seat heaters

1

2

3

4

Seat ventilators

1

2

3

4

427

6-1. Using the air conditioning system

6

Interio

r features

■

Seat ventilators

Blows air from the seat

Hi
Mid
Lo
Off

The level indicator lights come on.
Pressing  the  button  changes
modes in the following: 
Hi

MidLoOff

■

The seat heaters/seat ventilators can be used when
The engine switch is in the “ON” position.

■

Passenger seat ventilator timer (vehicles with seat ventilators)

●

The ventilator operates on for 5 minutes after the button is pressed.

●

When the passenger is not detected, the automatically turns off the ventila-
tor after 5 minutes.

■

When not in use
Turn the seat heaters or seat ventilators off by pressing the button. The indi-
cator light turns off.

1

2

3

4

WARNING

■

Burns

●

Use  caution  when  seating  the  following  persons  in  a  seat  with  the  seat
heater on to avoid the possibility of burns:
• Babies,  small  children,  the  elderly,  the  sick  and  the  physically  chal-

lenged

• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping

drugs, cold remedies, etc.)

●

Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.

●

Do not use seat heater more than necessary. Doing so may cause minor
burns or overheating.

428

6-1. Using the air conditioning system

NOTICE

■

To prevent damage to the seat heaters/seat ventilators
Do not put heavy objects that have an uneven surface on the seat and do
not stick sharp objects (needles, nails, etc.) into the seat.

■

To prevent battery discharge
Turn the seat heaters/seat ventilators off when the engine is not running.

429

6-2. Using the interior lights

6

Interio

r features

Interior lights list

Outer foot lights (if equipped)
Personal/interior lights 

(

P. 430)

Engine 

switch 

light 

(if

equipped)

Foot well lighting (if equipped)
Cargo lamp 

(

P. 431)

1

2

3

4

5

430

6-2. Using the interior lights

“OFF”

The  personal/interior  lights  can  be
individually turned on or off.

“DOOR”

The  personal/interior  lights  come
on  when  a  door  is  opened.  They
turn off when the doors are closed.

“ON”

The personal/interior lights cannot be individually turned off.

■

Front
On/off

■

Rear



Type A

On/off

Personal/interior lights main switch

1

2

3

Personal/interior lights

431

6-2. Using the interior lights

6

Interio

r features



Type B

On/off

“OFF”

The cargo lamp can be individually
turned on or off.

“DOOR”

The cargo lamp comes on when a
door is opened. They turn off when
the doors are closed.

“ON”

The cargo lamp cannot be individually turned off.

■

Illuminated entry system
The lights  automatically turn on/off  according to the  engine switch position,
whether the doors are locked/unlocked, and whether the doors are opened/
closed.

■

To prevent battery discharge
If the following lights remain on when the door is not fully closed and the main
switch is in the “DOOR” position, the lights will go off automatically after 20
minutes:

●

Personal lights

●

Interior lights

●

Cargo lamp

■

Customization that can be configured at Toyota dealer
Settings (e.g. the time elapsed before lights turn off) can be changed. 
(Customizable features: 

P. 623)

Cargo lamp main switch

1

2

3

432

6-3. Using the storage features

List of storage features



Front separated type seats

Bottle holders 

(

P. 444)

Card holder

(

P. 436)

Overhead console (

P. 441)

Glove box

(

P. 434)

Front cup holders (

P. 442)

Console box

(

P. 435)

• Card holder

(

P. 436)

• Pen holder

(

P. 439)

• Tissue pocket

(

P. 440)

Rear cup holders (if equipped) 

 (

P. 443)

Storage box (if equipped) 

(

P. 447)

1

2

3

4

5

6

7

8