Interior features -> Using the air conditioning system and defogger for Your Toyota 4 Runner SUV Sixth Generation (2025-2026)

454  
5-1. Using the air conditioning system and defogger  
5-1.Using the air conditioning system and defogger  
*
Manual air conditioning system  
*
: If equipped  
Air conditioning controls  
Temperature control dial  
Fan speed control dial  
“ON/OFF” switch  
“A/C” switch  
Outside/recirculated air mode switch  
Airflow mode control switch  
Rear window defogger and outside rear view mirror defoggers  
switch  
Windshield defogger switch  
Adjusting the temperature  
setting  
(increase) or counterclockwise  
(decrease).  
Press the “ON/OFF” switch to turn  
the fan off.  
To adjust the temperature set-  
ting, turn the temperature con-  
trol dial clockwise (warm) or  
counterclockwise (cool).  
Change the airflow mode  
Operate the air flow mode con-  
trol switch  
If “A/C” switch is not pressed, the  
system will blow ambient tempera-  
ture air or heated air.  
The airflow mode changes as fol-  
lows each time the switch is oper-  
ate.  
Fan speed setting  
To adjust the fan speed, turn the  
fan speed control dial clockwise  
455  
5-1. Using the air conditioning system and defogger  
switch.  
Set the outside/recirculated air  
mode switch to outside air mode  
if the recirculated air mode is  
used.  
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 wind-  
shield is defogged.  
1 Upper body  
2 Upper body and feet  
3 Feet  
When the windshield defogger  
switch is on, the indicator illumi-  
nates on the windshield defog-  
ger switch.  
4 Feet and the windshield  
defogger operates  
Defogging the rear window  
and outside rear view mir-  
rors  
5
Switching between outside  
air and recirculated air  
modes  
Defoggers are used to defog the  
rear window, and to remove  
raindrops, dew and frost from  
the outside rear view mirrors.  
Press the outside/recirculated  
air mode switch.  
The mode switches between out-  
side air mode (the indicator is off)  
and recirculated air mode (the indi-  
cator is on) each time the switch is  
pressed.  
Press the rear window and out-  
side rear view mirror defoggers  
switch.  
The defoggers will automatically  
turn off after 15 minutes. (Depend-  
ing on the surrounding environment  
and outside temperature, the  
Set cooling and dehumidifi-  
cation function  
Press the “A/C” switch.  
defogger may continue to operate  
after 15 minutes have elapsed.)  
When the function is on, the indica-  
tor illuminates on the “A/C” switch.  
When the rear window and outside  
rear view mirror defoggers switch is  
on, the indicator illuminates on the  
rear window and outside rear view  
mirror defoggers switch.  
Defogging the windshield  
Defoggers are used to defog the  
windshield and front side win-  
dows.  
Press the windshield defogger  
456  
5-1. Using the air conditioning system and defogger  
When the outside temperature  
falls to nearly 32°F (0°C)  
When the outside temperature  
exceeds 75°F (24°C) and the air  
conditioning system is on  
The dehumidification function may  
not operate even when “A/C” switch  
is pressed.  
In order to reduce the air condi-  
tioning power consumption, the air  
conditioning system may switch to  
recirculated air mode automati-  
cally.  
Ventilation and air conditioning  
odors  
To let fresh air in, set the air condi-  
tioning system to the outside air  
mode.  
This may also reduce fuel con-  
sumption.  
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/recirculated air mode  
switch.  
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:  
Fogging up of the windows  
It is recommended that the air con-  
ditioning system be set to outside air  
mode prior to turning the vehicle off.  
The windows will easily fog up  
when the humidity in the vehicle is  
high. Turning “A/C” switch is on  
will dehumidify the air from the  
outlets and defog the windshield  
effectively.  
Air conditioning filter  
P.557  
Air conditioning system refrig-  
If you turn “A/C” switch is off, the  
windows may fog up more easily.  
erant  
A label regarding the refrigerant of  
the air conditioning system is  
attached to the hood at the loca-  
tion shown in the following illustra-  
tion.  
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 recom-  
mended in preventing dirty air  
from entering the vehicle interior  
and helping to cool the vehicle  
when the outside air temperature  
is high.  
During cooling operation, setting  
the recirculated air mode will also  
cool the vehicle interior effectively.  
457  
5-1. Using the air conditioning system and defogger  
The meaning of each symbol on  
the label are as follows:  
Windshield wiper de-icer  
This feature is used to prevent  
ice from building up on the wind-  
shield and wiper blades.  
Caution  
Press the rear window and out-  
side rear view mirror defoggers  
switch.  
Air conditioning sys-  
tem  
Air conditioning sys-  
tem lubricant type  
The windshield wiper de-icer will  
automatically turn off after 15 min-  
utes.  
Requires registered  
technician to service  
air conditioning sys-  
tem  
Turning the rear window and out-  
side rear view mirror defoggers on  
will turn the windshield wiper deicer  
on.  
Flammable refrigerant  
When the rear window and outside  
rear view mirror defoggers switch is  
on, the indicator illuminates on the  
rear window and outside rear view  
mirror defoggers switch.  
WARNING  
5
To prevent the windshield  
from fogging up  
WARNING  
Do not use the windshield defog-  
ger switch during cool air opera-  
tion in extremely humid weather.  
The difference between the tem-  
perature of the outside air and  
that of the windshield can cause  
the outer surface of the wind-  
shield to fog up, blocking your  
vision.  
To prevent burns  
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.  
When the outside rear view  
mirror defoggers are operat-  
ing  
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.  
458  
5-1. Using the air conditioning system and defogger  
Air outlet layout and oper-  
ations  
Location of air outlets  
The air outlets and air volume  
changes according to the  
selected air flow mode.  
Opening/closing the air out-  
lets  
Front side  
Adjusting the air flow direc-  
tion  
Front  
Direct air flow to the left or right,  
up or down  
1 Open the vent  
2 Close the vent  
Front center  
Rear  
Direct air flow to the left or right,  
up or down  
1 Open the vent  
2 Close the vent  
459  
5-1. Using the air conditioning system and defogger  
Rear  
1 Open the vent  
2 Close the vent  
WARNING  
To not interrupt the wind-  
shield defogger from operat-  
ing  
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 defog-  
ging.  
5
460  
5-1. Using the air conditioning system and defogger  
*
Automatic air conditioning system  
*
: If equipped  
Air outlets and fan speed are automatically adjusted accord-  
ing to the temperature setting.  
Air conditioning controls  
Vehicles with the DUAL mode  
Vehicles without the DUAL mode  
“S-FLOW” switch  
Left-hand side temperature control dial  
Right-hand side temperature control dial  
“SYNC” switch (if equipped)  
“A/C” switch  
Rear window defogger and outside rear view mirror defoggers  
switch  
Windshield defogger switch  
461  
5-1. Using the air conditioning system and defogger  
Fan speed control switch  
Outside/recirculated air mode switch  
Air flow mode control switch  
“OFF” switch  
“AUTO” switch  
Fan speed control dial  
The airflow mode changes as fol-  
lows each time the switch is oper-  
ate.  
Adjusting the temperature  
setting  
To adjust the temperature set-  
ting, turn the temperature con-  
trol dial clockwise (warm) or  
counterclockwise (cool).  
If the “A/C” switch is not pressed,  
the system will blow ambient tem-  
perature air or heated air.  
5
Setting the fan speed  
Vehicles with the DUAL mode  
Operate the fan speed control  
switch upwards to increase the  
fan speed and downwards to  
decrease the fan speed.  
1 Air flows to the upper body.  
Press the “OFF” switch to turn the  
fan off.  
2 Air flows to the upper body  
and feet.  
Vehicles without the DUAL  
mode  
3 Air flows to the feet.  
4 Air flows to the feet and the  
windshield defogger oper-  
ates.  
To adjust the fan speed, turn the  
fan speed control dial clockwise  
(increase) or counterclockwise  
(decrease).  
Switching between outside  
air and recirculated air  
modes  
Press the “OFF” switch to turn the  
fan off.  
Press the outside/recirculated  
air mode switch.  
Change the airflow mode  
Operate the air flow mode con-  
trol switch  
The mode switches between out-  
side air mode (the indicator is off)  
and recirculated air mode (the indi-  
462  
5-1. Using the air conditioning system and defogger  
cator is on) each time the switch is  
pressed.  
drops, dew and frost from the  
outside rear view mirrors.  
Set cooling and dehumidifi-  
cation function  
Press the rear window and out-  
side rear view mirror defoggers  
switch.  
Press the “A/C” switch.  
The defoggers will automatically  
turn off after 15 minutes. (Depend-  
ing on the surrounding environment  
and outside temperature, the  
defogger may continue to operate  
after 15 minutes have elapsed.)  
Vehicles with the DUAL mode:  
When the function is on, “A/C ON”  
indicator will illuminate. When the  
function is off, “A/C OFF” indicator  
will illuminate.  
Vehicles without the DUAL mode:  
When the function is on, the indica-  
tor on the “A/C” switch illuminates.  
When the rear window and outside  
rear view mirror defoggers switch is  
on, the indicator illuminates on the  
rear window and outside rear view  
mirror defoggers switch.  
Defogging the windshield  
Defoggers are used to defog the  
windshield and front side win-  
dows.  
When the outside temperature  
exceeds 75°F (24°C) and the air  
conditioning system is on  
Press the windshield defogger  
switch.  
In order to reduce the air condi-  
tioning power consumption, the air  
conditioning system may switch to  
recirculated air mode automati-  
cally.  
Press the outside/recirculated air  
mode switch if the recirculated air  
mode is used. (It may switch auto-  
matically.)  
This may also reduce fuel con-  
sumption.  
To defog the windshield and the  
side windows quickly, turn the air  
flow and temperature up.  
Recirculated air mode is selected  
as a default mode when the  
engine switch is turned to ON.  
To return to the previous mode,  
press the windshield defogger  
switch again when the windshield is  
defogged.  
It is possible to switch to outside air  
mode at any time by pressing the  
outside/recirculated air mode  
switch.  
Fogging up of the windows  
When the windshield defogger  
switch is on, the indicator illumi-  
nates on the windshield defogger  
switch.  
The windows will easily fog up  
when the humidity in the vehicle is  
high. Turning the cooling and  
dehumidification function on will  
dehumidify the air from the outlets  
and defog the windshield effec-  
tively.  
Defogging the rear window  
and outside rear view mir-  
rors  
If you turn the cooling and dehu-  
midification function off, the win-  
dows may fog up more easily.  
Defoggers are used to defog the  
rear window and to remove rain-  
The windows may fog up if the  
463  
5-1. Using the air conditioning system and defogger  
recirculated air mode is used.  
helping to reduce odors that occur  
when starting the vehicle.  
When driving on dusty roads  
Air conditioning filter  
P.557  
Air conditioning system refrig-  
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.  
erant  
A label regarding the refrigerant of  
the air conditioning system is  
attached to the hood at the loca-  
tion shown in the following illustra-  
tion.  
Outside/recirculated air mode  
Setting to the recirculated air  
mode temporarily is recom-  
mended 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.  
When the outside temperature  
falls to nearly 32°F (0°C)  
5
The meaning of each symbol on  
the label are as follows:  
The dehumidification function may  
not operate even when “A/C” switch  
is pressed.  
Caution  
Ventilation and air conditioning  
odors  
Air conditioning sys-  
tem  
To let fresh air in, set the air condi-  
tioning system to the outside air  
mode.  
Air conditioning sys-  
tem lubricant type  
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.  
Requires registered  
technician to service  
air conditioning sys-  
tem  
In order to suppress odors that  
occur when the air conditioning  
system starts, the air flow mode  
may change to blow air to the feet  
or air may stop blowing for a short  
period of time immediately after  
the air conditioning system is  
started in automatic mode.  
Flammable refrigerant  
Customization  
Some functions can be customized.  
(Customizable features: P.637)  
When parking, the system auto-  
matically switches to outside air  
mode to encourage better air cir-  
culation throughout the vehicle,  
464  
5-1. Using the air conditioning system and defogger  
automatic mode indicator goes  
WARNING  
off. However, automatic mode  
for functions other than that  
operated is maintained.  
To prevent the windshield  
from fogging up  
Do not use the windshield defog-  
ger switch during cool air opera-  
tion in extremely humid weather.  
The difference between the tem-  
perature of the outside air and  
that of the windshield can cause  
the outer surface of the wind-  
shield to fog up, blocking your  
vision.  
Using automatic mode  
Fan speed is adjusted automati-  
cally 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-  
matic mode switch is pressed.  
When the outside rear view  
mirror defoggers are operat-  
ing  
Adjusting the temperature  
for driver and front pas-  
senger seats simultane-  
ously (“SYNC” mode) (if  
equipped)  
Do not touch the rear view mirror  
surfaces when the outside rear  
view mirror defoggers are on.  
NOTICE  
To prevent battery discharge  
To turn on the “SYNC” mode,  
operate the “SYNC” switch.  
Do not leave the air conditioning  
system on longer than necessary  
when the engine is off.  
The driver’s side temperature con-  
trol dial can be used to adjust the  
temperature for the driver’s and  
front passenger’s side. To enter  
individual mode, operate the front  
passenger’s side temperature con-  
trol dial or press the “SYNC” switch  
again.  
When repairing/replacing  
parts of the air conditioning  
system  
Have repair/replacement per-  
formed 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.  
When the “SYNC” mode is on, the  
“SYNC” indicator is illuminate.  
Using automatic mode  
Using front seat concen-  
trated airflow mode (S-  
FLOW)  
1 Press the “AUTO” switch.  
2 Adjust the temperature set-  
ting.  
Directing airflow to the front  
seats only and to all seats can  
be switched via switch opera-  
tion. Unnecessary air condition-  
ing is suppressed, contributing  
3 To stop the operation, press  
the “OFF” switch.  
If the fan speed setting or air  
flow modes are operated, the  
465  
5-1. Using the air conditioning system and defogger  
to increased fuel efficiency.  
Press on the air conditioning  
WARNING  
To prevent burns  
Do not touch the glass at lower  
part of the windshield or to the  
operation panel and switch the  
airflow.  
side of the front pillars when the  
windshield wiper deicer is on.  
Indicator illuminated: Airflow to  
the front seats only  
Air outlet layout and oper-  
ations  
Indicator off: Airflow to all the  
seats  
Location of air outlets  
Even if the function is switched to  
directing airflow to only the front  
seats, when a rear seat is occupied,  
it may automatically direct airflow to  
all seats.  
The air outlets and air volume  
change according to the  
selected air flow mode.  
Windshield wiper de-icer  
This feature is used to prevent  
ice from building up on the wind-  
shield and wiper blades.  
5
Press the rear window and out-  
side rear view mirror defoggers  
switch.  
Adjusting the air flow direc-  
The windshield wiper de-icer will  
automatically turn off after 15 min-  
utes.  
tion  
Front  
Direct air flow to the left or right,  
up or down  
Turning the rear window and out-  
side rear view mirror defoggers on  
will turn the windshield wiper de-  
icer on.  
When the rear window and outside  
rear view mirror defoggers switch is  
on, the indicator illuminates on the  
rear window and outside rear view  
mirror defoggers switch.  
466  
5-1. Using the air conditioning system and defogger  
Rear  
Rear  
Direct air flow to the left or right,  
up or down  
1 Open the vent  
2 Close the vent  
Opening/closing the air out-  
WARNING  
lets  
To not interrupt the wind-  
shield defogger from operat-  
ing  
Front side  
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 defog-  
ging.  
1 Open the vent  
2 Close the vent  
Front center  
1 Open the vent  
2 Close the vent  
467  
5-1. Using the air conditioning system and defogger  
Heated steering  
NOTICE  
*
wheel /seat heat-  
To prevent damage to the  
seat heaters and seat ventila-  
tors  
*
*
ers /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.  
: if equipped  
Heated steering wheel  
Warms up the grip of the  
steering wheel  
To prevent battery discharge  
Front seat heaters  
Do not use the functions when the  
engine is off.  
Warm up the seat upholstery  
Front seat ventilators  
Operating instructions  
Maintain good ventilation by  
pulling air through the seat  
upholstery  
Heated steering wheel (if  
equipped)  
Turns heated steering wheel  
on/off.  
When the heated steering wheel  
is on, the indicator illuminates  
on the heated steering wheel  
switch.  
WARNING  
5
To prevent minor burn inju-  
ries  
Care should be taken if anyone in  
the following categories comes in  
contact with the steering wheel or  
seats when the heater is on:  
Babies, small children, the  
elderly, the sick and the physi-  
cally challenged  
Persons with sensitive skin  
Persons who are fatigued  
Persons who have taken alco-  
hol or drugs that induce sleep  
(sleeping drugs, cold remedies,  
etc.)  
468  
5-1. Using the air conditioning system and defogger  
Front seat heaters (if  
equipped)/seat ventilators  
(if equipped)  
WARNING  
To prevent overheating and  
minor burn injuries  
Observe the following precautions  
when using the seat heaters.  
Do not cover the seat with a  
blanket or cushion when using  
the seat heater.  
Do not use seat heater more  
than necessary.  
Adjust the front seat heater  
temperature level  
Each time the switch is pressed,  
the operation condition changes as  
follows.  
Hi (3 segments lit) Mid (2 seg-  
ments lit) Lo (1 segment lit)   
Off  
The level indicator (red) light up  
during operation.  
Adjust the front seat ventila-  
tor fan speed level  
Each time the switch is pressed,  
the operation condition changes as  
follows.  
Hi (3 segments lit) Mid (2 seg-  
ments lit) Lo (1 segment lit)   
Off  
The level indicator (blue) light up  
during operation.  
The heated steering wheel, seat  
heaters and seat ventilators can  
be used when  
The engine switch is in ON.