heater SUBARU SOLTERRA 2023 User Guide

2635-4. Using the driving support systems
Owners Manual_USA_M42C01_en
5
Driving
■Situations in which the sensors
may not operate properly
●When the height or inclination of
the vehicle has been changed due
to modifications
●When the windshield is dirty,
fogged up, cracked or damaged
●When the ambient temperature is
high or low
●When mud, water, snow, dead
insects, foreign matter, etc., is
attached to the fr ont of the sensor
●When in inclement weather such
as heavy rain, fog, snow, or a
sandstorm
●When water, snow, dust, etc. is
thrown up in front of the vehicle, or
when driving through mist or
smoke
●When the headlig hts are not illu-
minated while driving in the dark,
such as at night o r when in a tun-
nel
●When the lens of a headlight is
dirty and illumination is weak
●When the headlights are mis-
aligned
●When a headlight is malfunction-
ing
●When a the headlights of another vehicle, sunlight, or reflected light
shines directly into the front cam-
era
●When the brightness of the sur-
rounding area changes suddenly
●When driving near a TV tower,
broadcasting station, electric
power plant, radar equipped vehi-
cles, etc., or other location where
strong radio waves or electrical
noise may be present
●When a wiper blade is blocking
the front camera
●When in a location or near objects
which strongly reflect radio waves,
such as the following:
• Tunnels
• Truss bridges
• Gravel roads
• Rutted, snow-covered roads
• Walls
• Large trucks
• Manhole covers
• Guardrail
• Metal plates
●When near a step or protrusion
●When a detectable vehicle is nar-
row, such as a small mobility vehi-
cle
●When a detectable vehicle has a
small front or rear end, such as an
unloaded truck
●When a detectable vehicle has a
low front or rear end, such as a
low bed trailer
●When a detectable vehicle has
extremely high ground clearance
WARNING
●Do not modify or change the
headlights and other lights.
■Front camera installation area
on the windshield
If the system determines that the
windshield may be fogged up, it
will automatically operate the
heater to defog the part of the
windshield around the front cam-
era. When cleaning, etc., be care-
ful not to touch the area around
the front camera until the wind-
shield has cooled sufficiently, as
touching it may cause burns.

3935-5. Driving tips
Owners Manual_USA_M42C01_en
5
Driving
5-5.Driving tips
 Use fluids that are appropriate
to the prevailing outside tem-
peratures.
• Power control unit coolant
• Heater coolant
• Washer fluid
Have a service technician
inspect the condition of the
12-volt battery.
 Have the vehicle fitted with
four snow tires or purchase a
set of tire chains for the front
tires.
Ensure that all tires are the same
size and brand, and that chains
match the size of the tires.
Perform the following according
Winter driving tips
Carry out the necessary
preparations and inspec-
tions before driving the
vehicle in winter. Always
drive the vehicle in a man-
ner appropriate to the pre-
vailing weather conditions.
Pre-winter preparations
WARNING
■Driving with snow tires
Observe the following precautions
to reduce the risk of accidents.
Failure to do so m ay result in a
loss of vehicle control and cause
death or serious injury.
●Use tires of the specified size.
●Maintain the recommended
level of air pressure.
●Do not drive in excess of 75
mph (120 km/h), regardless of
the type of snow tires being
used.
●Use snow tires on all, not just
some wheels.
■Driving with tire chains
Observe the following precautions
to reduce the risk of accidents.
Failure to do so may result in the
vehicle being unable to be driven
safely, and may cause death or
serious injury.
●Do not drive in excess of the
speed limit specifi ed for the tire
chains being used, or 30 mph
(50 km/h), whichever is lower.
●Avoid driving on bumpy road
surfaces or over potholes.
●Avoid sudden acceleration,
abrupt steering, sudden brak-
ing and shifting operations that
cause sudden regenerative
braking.
●Slow down sufficiently before
entering a curve to ensure that
vehicle control is maintained.
●Do not use LTA (Lane Tracing
Assist).
NOTICE
■Repairing or replacing snow
tires
Request repairs or replacement of
snow tires from your Toyota
dealer or legitimate tire retailers.
This is because the removal and
attachment of snow tires affects
the operation of the tire pressure
warning valves and transmitters.
Before driving the vehicle

399
Owners Manual_USA_M42C01_en
6
6
Interior features
Interior features
6-1. Using the air conditioning system and defogger
ALL AUTO (“ECO”) control .................................. 400
Automatic air conditioning system ....................... 402
Remote Air Conditioning System ...................... 409
Heated steering wheel/seat heaters/seat ventila-
tors/radiant heater ..... 411
6-2. Using the interior lights Interior lights list .......... 415
6-3. Using the storage features List of storage features 418
Luggage compartment fea- tures .......................... 421
6-4. Using the other interior features
Electronic sunshade.... 426
Other interior features . 428
Garage door opener.... 439

4006-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
6-1.Using the air conditioning system and defogger
*: if equipped
Press the ALL AUTO (“ECO”)
switch
The indicator on the ALL AUTO
(“ECO”) switch illuminates, and the
automatic air conditioning system,
seat heaters
* and ventilators*, and
heated steering wheel
* operate in
automatic mode.
If any of the system is operated
manually, the indicator turns off.
However, all other functions con-
tinue to operate in automatic mode.
Even if ALL AUTO (“ECO”) control
is turned off, the air conditioner,
seat heater/ventilator, and steering
heater will not be turned off.
If the front window glass becomes cloudy due to a drop in the outside
air temperature while the ALL
AUTO (“ECO”) control is operating,
you can remove the cloudiness by
pressing the AUTO switch on the
air conditioner control panel.
*: If equipped
■Automatic air conditioning
system (
P.402)
The temperature can be
adjusted independently for each
seat.
■Seat heaters (if equipped)
and ventilators (if
equipped) ( P. 4 1 1 )
Heating or ventilation is auto-
matically selected according to
the set temperature of the air
conditioning system, the out-
side temperature, etc.
■Heated steering wheel (if
equipped) ( P. 4 1 1 )
Heated steering wheel operates
automatically according to the
set temperature of the air condi-
tioning system, the outside tem-
perature, etc.
■Passenger detection functions
When a passenger is detected in
the front passenger seat, the seat
heater and ventila tor will operate
automatically.
■Seat heater (if equipped)/venti-
lator (if equipped) operation
If the seat heater/ventilator switch is
set to auto, it will operate without
performing the passenger detection.
ALL AUTO (“ECO”)
control
The seat heaters*, seat ven-
tilators
* and heated steer-
ing wheel
* are each
automatically controlled
according to the set tem-
perature of the air condi-
tioning system, the outside
and cabin temperature, etc.
ALL AUTO (“ECO”) con-
trols the power consump-
tion in order to both extend
the cruising range and
maintain comfortable condi-
tions.
Turning on ALL AUTO
(“ECO”) control
Operation of each system

4016-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
6
Interior features
When the ALL AUTO (“ECO”)
switch is pressed in that state, the
passenger seat heater and ventila-
tor will operate according to that
passenger det ected state.
■Rear seat heater (if equipped)
operation
The rear seat heaters are not con-
trolled by the ALL AUTO (“ECO”)
control.

4106-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
System.
The system will shut off if a door is
opened.
The system can be stopped by
pressing “A/C” twice.
Ty p e A
Ty p e B
■Operating conditions
The system will only operate if all of
the following cond itions are met:
●The power switch is OFF.
●All doors are closed.
●The hood is closed.
■Remote Air Conditioning Sys-
tem automatic shut-off
The system will auto matically shut
off under the following conditions:
●About 20 minutes have passed
since operation began
●Any one of the operating condi-
tions is not met
The system may also shut off if the
charge level of the traction battery drops to low.
■Conditions affecting operation
The system may not start in the fol-
lowing situations:
●The charge level of the traction
battery is low
●When the EV system is cool (for
example, after being left for a long
time in low temperatures)
■Windshield defogger
When defogging the windshield
using the Remote Air Conditioning
System, defogging may be insuffi-
cient due to the power being
restricted more than during normal
air conditioning operation. Also, the
outside of the windshield may fog up
due to the outsi de temperature,
humidity or air conditioning set tem-
perature.
■Security feature
Any unlocked doors will be automat-
ically locked when the system is
operating. The emergency flashers
flash to indicate that the doors have
been locked.
■Conditions affecting operation
 P.188
■While the Remote Air Condi-
tioning System is operating
●Depending on the operating con-
dition of the Remote Air Condition-
ing System, the e lectric fan may
spin and an operating noise may
be heard.
However, this does not indicate a
malfunction.
●The Remote Air Conditioning Sys-
tem may stop operating temporar-
ily if other features that use
electricity (for example, the seat
heater, lights, windshield wipers)
are in operation or if the charge
level of the 12-volt battery
becomes low.
●The headlights, windshield wiper,
meter, etc. will not operate.

4116-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
6
Interior features
■Electronic key battery depletion
 P. 1 6 2
■When the electronic key bat-
tery is fully depleted
 P. 4 9 7
■Customization
Setting (e.g. Operation using “A/C”
on the wireless remote control) can
be changed. (Customizable fea-
tures: P.575)*: If equipped
WARNING
■Precautions for the Remote
Air Conditioning System
●Do not use the system if people
are in the vehicle.
Even when the system is in use,
the internal temperature may
still reach a high or low level
due to features such as the
automatic shut-off. Children and
pets left inside the vehicle may
suffer heatstroke dehydration or
hypothermia, or could result in
death or serious injury.
●Depending on the surrounding
environment, signals from the
wireless switch may transmit
further than expected. Pay
appropriate attention to the
vehicle’s surroundings and use
the switch only when necessary.
●Do not operate “A/C” if the hood
is open. The air conditioning
may operate unintentionally and
objects may be drawn into the
electrical cooling fan.
NOTICE
■To prevent the traction bat-
tery from being discharged
through incorrect operation
Use “A/C” only when necessary.
Heated steering
wheel*/seat heat-
ers*/seat ventila-
tors*/radiant heater*
 Heated steering wheel
Warms up the grip of the
steering wheel
 Seat heaters
Warm up the seat upholstery
 Seat ventilators
Maintain good airflow on the
seat upholstery by sucking air
into the seats
 Radiant heaters
Warm up the feet of the front
seats
WARNING
■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.)

4126-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
Turns the heated steering wheel
on/off
Each time the switch is pressed,
the operation condition changes as
follows.
AUTO (lit)  Hi (2 segments lit) 
Lo (1 segment lit)  Off
The AUTO indicator and/or level
indicator illuminates during
operation.
■The heated steering wheel can
be used when
The power swit ch is in ON.
■Front
Turns the seat heaters on/off
Each time the switch is pressed,
the operation condition changes as
follows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 seg-
ment lit)  Off
The AUTO indicator and/or level
indicator illuminates during
operation.
■Rear (outboard rear seats)
Each time the switch is pressed,
the operation condition changes
as follows.
Hi (3 segments lit)  Mid (2
segments lit)  Lo (1 segment
lit)  Off
When not in use, put the switch
in the neutral position. The indi-
cator will turn off.
NOTICE
■To prevent damage to the
seat heaters and seat ventila-
tors
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 12-volt battery dis-
charge
Do not use the functions when the
EV system is off.
Heated steering wheel
Seat heaters

4136-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
6
Interior features
■The seat heaters can be used
when
The power swit ch is in ON.
Turns the seat ventilators on/off
Each time the switch is pressed,
the operation condition changes as
follows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 seg-
ment lit)  Off
The AUTO indicator and/or level
indicator illuminates during
operation.
■The seat ventilators can be
used when
The power switch is in ON.
■Air conditioning system-linked
control mode
When the seat ventilator fan speed
level is Hi, the seat ventilator fan
speed becomes higher according to
the fan speed of the air conditioning
system.
Front passenger’s side radi-
ant heater
Driver’s side radiant heater
Turns the radiant heater on/off
Each time the switch is pressed,
the operation condition changes as
WARNING
■To prevent causes of over-
heating and minor burn inju-
ries
Observe the following precautions
when using a seat heater
●Do not cover the seat with a
blanket or cushion when using
the seat heater.
●Do not use seat heater more
than necessary.
Seat ventilators (front
seats)
Radiant heaters

4146-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_enfollows.
Hi (3 segments lit) 
Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
The level indicator illuminates
during operation.
■The radiant heater can be used
when
The power swit ch is in ON.
●The power may be turned off auto-
matically be continually touching
the heater section. In that case,
turn the radiant heater switch on
again.
●It may take some time for the
heater temperature to rise.
WARNING
■To prevent causes of over-
heating and minor burn inju-
ries
Observe the following precautions
when using a radiant heater
●Do not use radia nt heater more
than necessary.
●Do not let blank ets, cushions,
luggage, etc., to touch the radi-
ant heater. Do not use.
■Use while driving
Do not touch the radiant heater or
hold your hand or foot over it by
releasing a hand from the handle
or a foot from the pedal.
Doing so may cause the driver to
mishandle the vehicle and cause
an accident, resulting in death or
serious injury.
NOTICE
■To prevent damage to the
radiant heater
Do not pierce with uneven objects
or sharp objects such as wires or
needles.