TOYOTA 4RUNNER 2023 Owners Manual

3515-1. Using the air conditioning system and defogger
5
Interior features
4RUNNER (U)■
Switching between outside air
and recirculated air modes
Press .
The mode switches between outside air mode (the indicator is of f) and
recirculated air mode (the indicator is on) each time the butto n is
pressed.
■
Defogging the windshield
Defoggers are used to defog the windshield and front side win-
dows.
Press .
The dehumidification function operates and fan speed increases.
Set the outside/recirculated air mode button to the 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 ai r flow and
temperature up.
To return to the previous mode, press again when the windshiel d
is defogged.
■
Defogging the rear window and outside rear view mirrors
Defoggers are used to defog the rear window, and to remove rain -
drops, dew and frost from the outside rear view mirrors.
Before operating the defoggers, make sure the back window is
completely closed. ( P. 158)
Press
The defoggers will automatically turn off after their operation time. The
operation time varies depending on the ambient temperature and vehi-
cle speed.
Other functions

3525-1. Using the air conditioning system and defogger
4RUNNER (U)■
Windshield wiper de
-icer (if equipped)
This feature is used to prevent ice from building up on the win d-
shield and wiper blades.
Turns the windshield wiper de-
icer on/off
The windshield wiper de-icer will
automatically turn off after
approximately 15 minutes.
■
Location of a ir outlets
The air outlets and air volume
changes according to the
selected airflow mode.
Air outlets

3535-1. Using the air conditioning system and defogger
5
Interior features
4RUNNER (U)■
Adjusting the position of and opening and closing the air out-
lets
■
Using automatic mode
Fan speed is adjusted automatically according to the temperatur e 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.
Front center outletsFront side outlets
Rear outlets
Direct air flow to the le ft or right, up or down.
Turn the knob to open o r close the vent.
1
2

3545-1. Using the air conditioning system and defogger
4RUNNER (U)■
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 wind-
shield effectively.
● If you turn 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 vehi-
cle 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 prevent-
ing 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 dependin g on the
temperature setting, outside temperature, pressure, engine cool ant tem-
perature or inside temperature.
■ When the outside temperature exceeds 75°F (24°C) and the air co ndition-
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 en gine switch
is turned to IGNITION ON mode.
● It is possible to switch to outside air mode at any time by pre ssing
.
■When the outside tempera ture falls to nearly 32F (0 C)
The dehumidification function may not operate even when is pre ssed.
■ When driving on dusty roads
Close all windows. If dust thrown up by the vehicle is still drawn into the vehi-
cle 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.
■ When the indicator light on flashes
Press
to turn off the cooling and dehumidification function and turn it on
again. There may be a problem in the air conditioning system if the indicator
light continues to flash. Turn the air conditioning system off and have it
inspected by your Toyota dealer.

3555-1. Using the air conditioning system and defogger
5
Interior features
4RUNNER (U)■
Ventilation and air conditioning odors
●To let fresh air in, set the air conditioning system to the out side air mode.
● During use, various odors from inside and outside the vehicle m ay enter into
and accumulate in the air conditioning system. This may then ca use odor to
be emitted from the vents.
● To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to o utside air
mode prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short peri od of time
immediately after the air conditioning system is started in aut omatic
mode.
■ Air conditioning filter
P. 445
■ Air conditioning system refrigerant
●The meaning of each symbol on the label are as follows:
●
A label regarding the refrigerant of the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.
Caution
Air conditioning system
Air conditioning system lubricant type
Requires registered technician to service air conditioning
system
Flammable refrigerant

3565-1. Using the air conditioning system and defogger
4RUNNER (U)
WARNING
■To prevent the windshield from fogging up
● Do not use during cool air operation in extremely humid weathe r.
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
● 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 necessa ry when the
engine is stopped.
■ 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 evapora tor, is to be
replaced, it must be replaced with a new one.
● 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.

3575-1. Using the air conditioning system and defogger
5
Interior features
4RUNNER (U)
Heated steering wheel/Seat heaters/seat
ventilators

: If equipped
Heated steering wheel and seat heaters heat the side grips of t he
steering wheel and seats, respectively. Seat ventilators mainta in
good ventilation by pulling ai r through the seat upholstery.
WARNING
●Care should be taken to prevent injury if anyone in the following categories
comes in contact with the steering wheel and seats when the hea ter is on:
• 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.)
● Observe the following precautions to prevent minor burns or ove rheating:
• Do not cover the seat with a blanket or cushion when using the seat
heater.
• Do not use seat heater more than necessary.
NOTICE
● Do not put heavy objects that have an uneven surface on the sea t and do
not stick sharp objects (needles, nails, etc.) into the seat.
● To prevent battery discharge, do not use the functions when the engine is
off.

3585-1. Using the air conditioning system and defogger
4RUNNER (U)
Turns the heated steering wheel
on/off
The indicator light comes on when
the heated steering wheel is oper-
ating.
The heated steering wheel can be used when the engine switch is in IGNI-
TION ON mode.
Vehicles with ventilator
Press the knob to release it,
and turn the knob to the desired
temperature setting.
OFF
Press the knob to lock it when not
in use.
Ventilation
Heat
Heated steering wheel
Seat heaters/ventilators
1
2
3
4

3595-1. Using the air conditioning system and defogger
5
Interior features
4RUNNER (U)
Vehicles without ventilator
On
The indicator light comes on.
Adjusts the seat temperature
The further you move the dial for-
ward, the warmer the seat
becomes.
Off
Move the dial fully backward. The
indicator light turns off.
■The seat heaters/seat ventilators can be used when
The engine switch is in IGNITION ON mode.
1
2
3

360
4RUNNER (U)
5-2. Using the interior lights
Rear interior light (P. 361)
Front interior light/fr ont personal lights ( P. 3 6 1 )
Shift lever light (when the eng ine switch is in ACCESSORY or IG NI-
TION ON mode)
Inside door handle lights (if equipped)
Outer foot lights (if equipped)
Engine switch light
Footwell lights (if equipped)
Door courtesy lights
Turning the instrument panel light control dial fully downward disables
the inside door handle lights, f ootwell lights and shift lever light.
(  P. 89)
Interior li ghts list
1
2
3
4
5
6
7
8