2023 SUBARU SOLTERRA traction control

3985-5. Driving tips
Owners Manual_USA_M42C01_en
WARNING
●When driving off-road or in rug-
ged terrain, do not drive at
excessive speeds, jump, make
sharp turns, strike objects, etc.
This may cause loss of control
or vehicle rollover causing
death or serious injury. You are
also risking expensive damage
to your vehicle’s suspension
and chassis.
NOTICE
■To prevent the water damage
Take all necessary safety mea-
sures to ensure that water dam-
age to the traction battery, EV
system or other components does
not occur.
●Water entering the motor com-
partment may cause severe
damage to the EV system.
●Water entering the transmis-
sion will cause deterioration in
transmission quality. The mal-
function indicator may come on,
and the vehicle may not be driv-
able.
●Water can wash the grease
from wheel bearings, causing
rusting and premature failure,
and may also enter the tran-
saxle case, reducing the gear
oil’s lubricating qualities.
■When you drive through
water
If driving through water, such as
when crossing shallow streams,
first check the depth of the water
and the bottom of the riverbed for
firmness. Drive slowly and avoid
deep water.
■Inspection after off-road driv-
ing
●Sand and mud that has accu-
mulated around brake discs
may affect braking efficiency
and may damage brake system
components.
●Always perform a maintenance
inspection after each day of off-
road driving that has taken you
through rough terrain, sand,
mud, or water. For scheduled
maintenance information, refer
to the “Scheduled Maintenance
Guide” or “Owner’s Manual
Supplement”.

4096-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
6
Interior features
■To return to automatic airflow
control
1 With the indicator off, turn the
power switch off.
2 After 60 minutes or more elapse,
turn the power switch to ON.
Check the temperature setting
of the air conditioning system.
(P.403)
The Remote Air Conditioning Sys-
tem will operate in accordance with
the temperature settings of the air
conditioning system.
Press and hold “A/C” on the
wireless remote control to oper-
ate the Remote Air Conditioning
Remote Air Condition-
ing System
The Remote Air Condition-
ing System uses electrical
energy stored in the trac-
tion battery and allows the
air conditioning to be oper-
ated by remote control.
If the Remote Air Condition-
ing System is used while
the charging cable is con-
nected to the vehicle, the
reduction of charge in the
traction battery will be sup-
pressed to allow you to use
electricity from an external
power source.
Charging will be conducted
automatically after the
Remote Air Conditioning Sys-
tem is stopped.
Before leaving the vehicle
Activating the Remote Air
Conditioning System

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.)

4607-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_en
7-3.Do-it-yourself maintenance
Do-it-yourself ser vice
precautions
If you perform maintenance
by yourself, be sure to fol-
low the correct procedure
as given in these sections.
Maintenance
ItemsParts and tools
12-volt bat-
tery condi-
tion (P.468)
•Warm water
• Baking soda
•Grease
• Conventional
wrench (for termi-
nal clamp bolts)
Brake fluid
level
( P.468)
• FMVSS No.116
DOT 3 or SAE
J1703 brake fluid
FMVSS No.116
DOT 4 or SAE
J1704 brake fluid
• Rag or paper towel
• Funnel (used only for adding brake
fluid)
Power control
unit coolant
level
( P.467)
• In order to ensure
maximum perfor-
mance of the trac-
tion battery
cooling system
and limit risks of
battery short-cir-
cuit and other
damage to your
vehicle, Toyota
recommends
using “Toyota
Genuine Traction
Battery Coolant”
or similar high-
quality ethylene
glycol-based, low
electric conductiv-
ity coolant, non-
amine and non-
borate coolant
with azole addi-
tives.
• Funnel (used only for adding coolant)
ItemsParts and tools

4677-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_en
7
Maintenance and care
The coolant level is satisfactory
if it is between the “MAX” and
“MIN” lines on the reservoir
when the EV system is cold. Reservoir cap
“MAX” line
“MIN” line
If the level is on or below the “MIN”
line, add coolant up to the “MAX”
line.
■Coolant selection
In order to ensure maximum perfor-
mance of the traction battery cooling
system and limit risks of battery
short-circuit and other damage to your vehicle, Toyota recommends
using “Toyota Genuine Traction Bat-
tery Coolant” or similar high-quality
ethylene glycol-based, low electric
conductivity coolant, non-amine and
non-borate coolant with azole addi-
tives.
Toyota cannot guarantee that the
use of a product o
ther than “Toyota
Genuine Traction Battery Coolant”
will prevent risks of battery short-cir-
cuit or other damage.
Never use water as it will cause
damage.
Do not reuse cool ant that has been
removed from the radiator.
For more details about coolant, con-
tact your Toyota dealer.
■If the coolant level drops within
a short time of replenishing
Visually check the hoses, heater
coolant reservoir caps, drain cock
and water pump.
If you cannot find a leak, have your
Toyota dealer, t est the cap and
check for leaks in the cooling sys-
tem.
WARNING
■When the electric cooling fan
are operating
Do not touch the motor compart-
ment.
With the power switch in ON, the
electric cooling fan may automati-
cally start to run if the air condi-
tioning is on and/or the coolant
temperature is high. Be sure the
power switch is OFF when work-
ing near the electric cooling fan or
radiator grille.
Checking the power con-
trol unit coolant
WARNING
■When the EV system is hot
Do not remove the power control
unit coolant reservoir caps.
The cooling system may be under
pressure and may spray hot cool-
ant if the cap is removed, causing
serious injuries, such as burns.

5258-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist)
Follow the followi ng correction
methods.
• The temperature of the radar sen- sor is outside of the operating
range. Wait for the temperature to
become appropriate.
■If “System Stopped Front Radar
In Self Calibration See Owner’s
Manual” is displayed
Indicates one of the following sys-
tems is disabled.
●PCS (Pre-Collis ion System)
●LDA (Lane Departure Alert)
●LTA (Lane Tracing Assist)
●AHB (Automatic High Beam)
●Dynamic radar cruise control
●RSA (Road Sign Assist)
Follow the followi ng correction
methods.
• Check if there is any foreign mat- ter attached to the radar sensor or
radar sensor cover and clean
them if necessary ( P.261)
• The radar sensor may be mis- aligned and will be adjusted auto-
matically while driving. Continue
driving for a while.
■If “Cruise Control Unavailable
See Owner’s Manual” is dis-
played
Indicates one of the following sys-
tems is disabled.
●Dynamic radar cruise control
●Cruise control
A message is displayed when the
driving assist s witch is pushed
repeatedly.
Press the driving assist switch
quickly and firmly.
■If a message that indicates the
need for visiting your Toyota
dealer is displayed
The system or part shown on the
multi-information di splay is malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer immediately.
■If a message that indicates the
need for the rotary shifter oper-
ation is displayed
To prevent the rota ry shifter from
being operated incorrectly or the
vehicle from moving unexpectedly, a
message that requires shifting the
shift position may be displayed on
the multi-informatio n display. In that
case, follow the in struction of the
message and shift the shift position.
■If a message that indicates the
need for referring to Owner’s
Manual is displayed
●If any of the following messages
are shown on the multi-informa-
tion display, follow the instruc-
tions.
• “Battery Low” ( P.541)
• “Check Charging System Close Charging Port Lid” ( P.140)
• “Charging system malfunction”
( P.140)
• “Charging stopped High energy use” ( P.140)
●If any of the following messages
are shown on the multi-informa-
tion display, it may indicate a mal-
function. Have the vehicle
inspected by your Toyota dealer
immediately.
• “Entry & Start System Malfunction”
• “Traction battery system malfunc- tion”
• “Accelerator system malfunction”
• “Plug-in Charging System Mal- function”
• “EV system malfunction”
• “Shift System Mal function Apply
Parking Brake Securely When
Parking See Owner’s Manual”
• “Shift System M alfunction See
Owner’s Manual”
• “Shift System Malfunction Stop in

5378-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
One of the following may be the
cause of the problem:
 The charging cable may be
connected to the vehicle.
( P.102)
 The electronic key may not be
functioning properly.
*
( P.539)
 The traction battery may be
completely discharged.
Charge the traction battery.
( P.98)
 There may be a malfunction
in the immobilizer system.
*
( P.68)
 There may be a malfunction
in the shift control system.
*
( P.233, 525)
 The EV system may be mal-
functioning due to an electri-
cal problem such as
electronic key battery deple-
tion or a blown fuse. However,
NOTICE
●Do not put the repair kit directly
onto dusty ground such as sand
at the side of the road. If the
repair kit vacuums up dust, etc.,
a malfunction may occur.
●Make sure the sealant bottle of
the repair kit is in a vertical posi-
tion. The repair kit does not
operate properly when it is laid.
■Precautions for the emer-
gency tire puncture repair kit
●The repair kit power source
should be 12 V DC suitable for
vehicle use. Do not connect the
repair kit to any other source.
●Place the repair kit in a storage
to prevent it from being exposed
to dirt or water.
●Store the repair kit in the lug-
gage compartment out of reach
of children.
●Do not disassemble or modify
the repair kit. Do not subject
parts such as the air pressure
indicator to impacts. This may
cause a malfunction.
■To avoid damage to the tire
pressure warning valves and
transmitters
When a tire is repaired with liquid
sealants, the tire pressure warn-
ing valve and transmitter may not
operate properly. If a liquid seal-
ant is used, contact your Toyota
dealer or other qualified service
shop as soon as possible. After
use of liquid sealant, make sure to
replace the tire pressure warning
valve and transmitter when repair-
ing or replacing the tire. ( P.476)
If the EV system will
not star t
Reasons for the EV system
not starting vary depending
on the situation. Check the
following and perform the
appropriate procedure:
The EV system will not
start even though the cor-
rect starting procedure is
being followed ( P.231)

5388-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
depending on the type of mal-
function, an interim measure
is available to start the EV
system. (P.538)
 There is a possibility that the
temperature of the traction
battery is extremely low
(approximately below -22°F [-
30°C]). ( P.77, 232)
*: It may not be possible to shift the
shift position from P
One of the following may be the
cause of the problem:
 The 12-volt battery may be
discharged. ( P.541)
 The 12-volt battery terminal
connections may be loose or
corroded. ( P.468)
One of the following may be the
cause of the problem:
 The 12-volt battery may be
discharged. ( P.541)
 One or both of the 12-volt bat-
tery terminals may be discon-
nected. ( P.468)
Contact your Toyota dealer if the problem cannot be repaired, or if
repair procedures are unknown.
When the EV system does not
start, the following steps can be
used as an interim measure to
start the EV system if the power
switch is functioning normally.
Do not use this starting proce-
dure except in cases of emer-
gency.
1
Set the parking brake.
2 Turn the power switch to
ACC.
*
3Press and hold the power
switch for about 15 seconds
while depressing the brake
pedal firmly.
After pressing the power switch for
a while, a message regarding 12-
volt battery control will be dis-
played, however continuing press-
ing the switch.
Even if the EV system can be
started using the above steps,
the system may be malfunction-
ing. Have the vehicle inspected
by your Toyota dealer.
*: Setting can be customized.
( P.571)
The interior lights and
headlights are dim, or the
horn does not sound or
sounds at a low volume
The interior lights and
headlights do not turn on,
or the horn does not
sound
Starting the EV system in
an emergency