2023 TOYOTA HIGHLANDER air conditioning

2784-5. Using the driving support systems
• It might be difficult to hear the buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be difficult to hear the buzzer if buzzers for other sys-
tems are sounding.
■Objects which the system may
not be properly detected
The shape of the object may pre-
vent the sensor from detecting it.
Pay particular attention to the follow-
ing objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials
that absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections
projecting outwards in the direc-
tion of your vehicle
People may not be detected if they
are wearing certain types of cloth-
ing.
■Situations in which the system
may not operate properly
Certain vehicle conditions and the
surrounding environment may affect
the ability of a sensor to correctly
detect objects. Particular instances
where this may occur are listed
below.
●There is dirt, snow, water drops or
ice on a sensor. (Cleaning the
sensors will resolve this problem.)
●A sensor is frozen. (Thawing the
area will resolve this problem.)
In especially cold weather, if a
sensor is frozen the sensor dis-
play may be displayed abnormally,
or objects, such as a wall, may not
be detected.
●When a sensor or the area around
a sensor is extremely hot or cold.
●On an extremely bumpy road, on
an incline, on gravel, or on grass.
●When vehicle horns, vehicle
detectors, motorcycle engines, air
brakes of large vehicles, the clear-
ance sonar of ot her vehicles or
other devices which produce ultra-
sonic waves are near the vehicle.
●A sensor is coated with a sheet of
spray or heavy rain.
●If objects draw too close to the
sensor.
●When a pedestrian is wearing
clothing that does not reflect ultra-
sonic waves (ex. skirts with gath-
ers or frills).
●When objects that are not perpen-
dicular to the ground, not perpen-
dicular to the vehicle traveling
direction, uneven, or waving are in
the detection range.
●Strong wind is blowing.
●When driving in inclement weather
such as fog, snow or a sandstorm.
●When an object that cannot be
detected is between the vehicle
and a detected object.
●If an object such as a vehicle,
motorcycle, bicycle or pedestrian
cuts in front of the vehicle or runs
out from the side of the vehicle.
●If the orientation of a sensor has
been changed due to a collision or
other impact.
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle carrier, or snow plow.
●If the front of the v ehicle is raised

2884-5. Using the driving support systems
●If the front of the vehicle is raised
or lowered due to the carried load
●When turning while backing up
●When a vehicle turns into the
detection area
■Situations in which the system
may operate even if there is no
possibility of a collision
Instances of the RCTA function
unnecessary detec ting a vehicle
and/or object may increase in the
following situations:
●When the parking space faces a
street and vehicles are being
driven on the street
●When the distanc e between your
vehicle and metal objects, such as
a guardrail, wall, sign, or parked
vehicle, which may reflect electri-
cal waves toward the rear of the
vehicle, is short
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle car rier, or snow plow
●When a vehicle passes by the
side of your vehicle
●When a detected vehicle turns
while approaching the vehicle
●When there are spinning objects
near your vehicle such as the fan
of an air conditioning unit
●When water is splashed or
sprayed toward the rear bumper,
such as from a sprinkler
●Moving objects (f lags, exhaust
fumes, large rain droplets or
snowflakes, rain water on the road
surface, etc.)
●When the distance between your
vehicle and a guardrail, wall, etc.,
that enters the detection area is
short
●Gratings and gutters

3014-5. Using the driving support systems
4
Driving
driving on roads with many curves.
When Sport mode is selected,
Sport mode indicator comes on.
3Eco drive mode
Helps the driver a ccelerate in an
eco-friendly manner and improve
fuel economy through moderate
throttle characteri stics and by con-
trolling the operation of the air con-
ditioning system (heating/cooling).
When Eco drive mode is selected,
Eco drive mode indicator comes
on.
■When changing to a driving
mode other than normal mode
Switches to AWD control suitable for
the selected mode. (for Dynamic
Torque Vectoring AWD vehicles
only)
■Air conditioning system opera-
tion in Eco drive mode
In Eco drive mode, heating/cooling
operations and the fan speed is con-
trolled to improve fuel efficiency.
Perform the following procedures to
increase the air conditioning perfor-
mance.
●Vehicle with 12.3-inch audio sys-
tem screen: Turn eco air condi-
tioning mode off ( P.328)
●Adjust the fan speed ( P.323)
●Cancel Eco drive mode
■Canceling a driving mode
●Sport mode is automatically can-
celed and the driving mode
returns to normal mode when the
engine switch is turned off.
●Normal mode and Eco drive mode
are not canceled until another
driving mode is sel ected. (Even if
the engine switch is turned off,
normal mode and Eco drive mode
will not be automatically can-
celed.)
Multi-terrain Select
(AWD models)
Multi-terrain Select is a sys-
tem that improves drivabil-
ity in off-road situations.
When driving over muddy,
sandy or rough road sur-
faces, the system selects a
suitable driving mode to
switch AWD, brake and
drive force control to per-
form control suitable for the
road condition.
WARNING
■Before using Multi-terrain
Select
Make sure to observe the follow-
ing precautions. Failure to
observe these precautions may
result in an unexp ected accident.
●Check that the Mud & Sand and
Rock & Dirt indicators are illumi-
nated before driving. Multi-ter-
rain Select will not operate
when the indicators are off.
●Do not rely solely upon the
Multi-terrain Select. This func-
tion is not inten ded to expand
the limits of the vehicle. If the
system is continuously used for
a long period of time, the load
on related parts increases and
the system may be unable to
operate normally, which may
lead to an accident. Thoroughly
check the road conditions and
driving route before driving, and
drive with caution.

321
5
5
Interior features
Interior features
.5-1. Using the air conditioning system and defogger
Front automatic air condi- tioning system ........... 322
Rear automatic air condi- tioning system ........... 331
Heated steering wheel/seat heaters/seat ventilators.................................. 335
5-2. Using the interior lights Interior lights list .......... 337
5-3. Using the storage features List of storage features.................................. 340
Luggage compartment fea- tures .......................... 344
5-4. Using the other interior features
Other interior features . 349
Garage door opener.... 360

3225-1. Using the air conditioning system and defogger
5-1.Using the air conditioning system and defogger
Automatic mode switch (P.328)
Left-hand side temperature control switch
“OFF” switch
Windshield defogger switch
Rear air conditioning system on/off switch ( P.332)
S-FLOW mode switch ( P.328)
Right-hand side temperature control switch
“A/C” switch
Outside/recirculated air mode switch
“REAR CLIMATE” switch ( P.332)
Rear seat temperature control knob ( P.332)
Airflow mode control knob
Fan speed control knob
“SYNC” control knob
Rear window defogger and outside rear view mirror defoggers
switch
Windshield wiper de-icer switch
Front automatic ai r conditioning system
Air outlets and fan speed are automatically adjusted accord-
ing to the temperature setting.
The air conditioning system can be displayed and operated on
the audio system screen.
Air conditioning controls

3235-1. Using the air conditioning system and defogger
5
Interior features
■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 a mbient tempera-
ture 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” dis-
plays disappear)
 The passenger’s side tem-
perature 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 c onditioning sys-
tem between individual and simul-
taneous 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 out-
side air mode and recirculated air
mode each time the switch is oper-
ated.
When recirculated air mode is
selected, the indicator illuminates
on the outside/recirculated air
mode switch.

3245-1. Using the air conditioning system and defogger
■Set cooling and dehumidifi-
cation function
Press the “A/C” switch.
When the function i s on, the indica-
tor illuminates on th e “A/C” switch.
■Defogging the windshield
Defoggers are used to defog the
windshield and front side win-
dows.
Press the windshield defogger
switch.
Set the outside/recirculated air
mode switch to outside air mode if
t h e r e c i r c u l a t e d a i r m o d e i s u s e d . ( I t
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 illumi-
nates on the windshield defogger
switch.
■Defogging the rear window
and outside rear view mir-
rors
Defoggers are used to defog the
rear window and to remove rain-
drops, 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 defog- gers switch is on, the indicator illu-
minates on the rear window
defogger and outside rear view mir-
ror defoggers switch.
The defoggers will automatically
turn off afte
r a while.
■Windshield wiper de-icer
This feature is used to prevent
ice from building up on the wind-
shield and wiper blades.
Press the windshield wiper
de-icer switch.
When the windshield wiper de-icer
switch is on, the indicator illumi-
nates 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 75°F (24°C) and the air
conditioning system is on
●In order to reduce the air condi-
tioning power consumption, the air
conditioning system may switch to
recirculated air mode automati-
cally. 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 dehu-
midify 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

3255-1. Using the air conditioning system and defogger
5
Interior features
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 r ecirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to c ool 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 condition-
ing system in Eco drive mode
●In Eco drive mode, the air condi-
tioning system is controlled as fol-
lows to prioritize fuel efficiency:
• Engine speed and compressor operation controlled to restrict
heating/cooling capacity
• Fan speed restr icted when auto-
matic mode is selected
●To improve air co nditioning perfor-
mance, perform the following
operations:
• Adjust the fan speed
• Turn off Eco drive mode ( P.300)
■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 condi-
tioning 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 out-
side 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 con-
ditioning system is started in auto-
matic mode.
●When parking, the system auto-
matically switches to outside air
mode to encourage better air cir-
culation throughout the vehicle,
helping to reduce odors that occur
when starting the vehicle.
■Air conditioning system opera-
tions when the engine is
stopped due to the Stop & Start
system (vehicles with Stop &
Start system)
When the engine is stopped due to
Stop & Start system operations, the
automatic air conditioning cooling,
heating and dehumidification func-
tions 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
(vehicles with Stop & Start sys-
tem)
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.