ECU SUBARU SOLTERRA 2023 Workshop Manual

1834-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
WARNING
●If the power back door system is
turned off while the back door is
operating automatically, the
automatic operation is stopped.
The back door then has to be
operated manually. Take extra
care when on an incline, as the
back door may open or close
unexpectedly.
●If the operating conditions of the
power back door are no longer
met, a buzzer may sound and
the back door may stop opening
or closing. The back door then
has to be operated manually.
Take extra care when on an
incline, as the back door may
open or close abruptly.
●On an incline, t he back door
may suddenly shut after it
opens. Make sure the back door
is fully open and secure.
●In the following situations, the
power back door may detect an
abnormality and automatic
operation may be stopped. In
this case, the back door has to
be operated manually. Take
extra care when on an incline,
as the back door may open or
close abruptly.
• When the back door contacts an obstacle
• When the 12-volt battery volt- age suddenly drops, such as
when the power switch is turned
to ON or the EV system is
started during automatic opera-
tion
●If a bicycle carrier or similar
heavy object is attached to the
back door, the power back door
may not operate, causing itself
to malfunction, or the back door
may suddenly shut again after
being opened, causing some-
one’s hands, arms, head or
neck to be caught and injured.
When installing an accessory
part to the back door, using a
genuine Toyota part is recom-
mended.
■Jam protection function
Observe the following precau-
tions.
Failure to do so may cause death
or serious injury.
●Never use any part of your body
to intentionally activate the jam
protection function.
●The jam protection function may
not work if something gets
caught just before the back door
fully closes. Be careful not to
catch fingers or anything else.
●The jam protection function may
not work depending on the
shape of the object that is
caught. Be careful not to catch
fingers or anything else.
■Hands Free Power Back Door
(if equipped)
Observe the following precautions
when operating the Hands Free
Power Back Door.
Failure to do so may cause death
or serious injury.
●Check the safety of the sur-
rounding area to make sure
there are no obs tacles or any-
thing that could cause any of
your belongings to get caught.

1894-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
tact with, or is covered by the fol-
lowing metallic objects
• Cards to which al uminum foil is
attached
• Cigarette boxes that have alumi- num foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When another wireless key (that
emits radio waves) is being used
nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless
communication devices
• Another electronic key or a wire- less key that emits radio waves
• Personal computers or personal
digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic con-
tent or metallic objects are
attached to the rear window
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When the vehicle is parked in a
pay parking spot where radio
waves are emitted.
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is on the instru- ment panel, luggage cover or
floor, or in the door pockets or
glove box when the EV system is
started or power switch modes are
changed.
●Do not leave the electronic key on
top of the instrument panel or near
the door pockets when exiting the
vehicle. Depending on the radio
wave reception conditions, it may
be detected by the antenna out-
side the cabin and the door will
become lockable from the outside,
possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is
within the effective range, the
doors may be locked or unlocked
by anyone. However, only the
doors detecting the electronic key
can be used to lo ck or unlock the
vehicle.
●Even if the electro nic key is not
inside the vehicle, it may be possi-
ble to start the EV system if the
electronic key is near the window.
●The doors may unlock if a large
amount of water splashes on the
door handle, such as in the rain or
in a car wash when the electronic
key is within the effective range.
(The doors will au tomatically be
locked after approximately 60 sec-
onds if the doors are not opened
and closed.)
●If the wireless remote control is
used to lock the doors when the
electronic key is near the vehicle,
there is a possib ility that the door
may not be unlocked by the entry
function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock sensor
while wearing gloves may delay or
prevent lock operation. Remove
the gloves and touch the lock sen-
sor again.
●When the lock operation is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recognition signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective range, the door may

1944-3. Adjusting the seats
Owners Manual_USA_M42C01_en
■Before folding down the
seatbacks
1 Park the vehicle in a safe
place.
Apply the parking brake ( P.243)
and shift the shift position to P.
(  P.237)
2 Adjust the position of the
front seat and the angle of
the seatback. ( P.192)
Depending on the position of the
front seat, if the seatback is folded
backward, it may interfere with the
operation of the rear seat.
3 Lower the head restraint of
the rear center seat.
( P.196)
4 Stow the armrest of the rear
seat if it is pulled out.
( P.437)
This step is not necessary when
operating the left side seat only.
■Folding down the rear seat-
backs
While pulling the seatback angle
adjustment lever , fold the
seatback down.
■Returning the rear seat-
backs
To avoid trapping the seat belt
between the seat and the inside
of the vehicle, pass the seat belt
outside the seat belt guide
and then return the seatback
securely to the locked position.
WARNING
●After adjusting the seat, make
sure that the seat is locked in
position.
If the seatback is not securely
locked, the red marking will be
visible. Make sure that the red
marking is not visible.
Folding down the rear
seatbacks
WARNING
■When folding the rear seat-
backs down
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.

1954-3. Adjusting the seats
Owners Manual_USA_M42C01_en
4
Before driving
■Front seats
1 Up
Pull the head restraints up.
2Down
Push the head restraint down while
pressing the lock release button .
WARNING
●Do not attempt t o fold the seat-
backs down while driving.
●Stop the vehicle on level
ground, set the parking brake
and shift the shift position to P.
●Do not allow anyo ne to sit on a
folded seatback or in the lug-
gage compartment while driv-
ing.
●Do not allow child ren to enter
the luggage compartment.
●Do not operate the rear seat if it
is occupied.
●Be careful not to get feet or
hands caught in the moving
parts or joints of the seats
during operation.
●Do not allow children to operate
the seat.
■After returning the rear seat-
back to the upright position
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.
●Make sure that the seatback is
securely locked in position by
lightly pushing it back and forth.
If the seatback is not securely
locked, the red marking will be
visible on the seatback lock
release lever. Make sure that
the red marking is not visible.
●Check that the seat belts are
not twisted or caught in the
seatback.
Head restraints
Head restraints are pro-
vided for all seats.
WARNING
■Head restraint precautions
Observe the following precautions
regarding the head restraints.
Failure to do so may result in
death or serious injury.
●Use the head restraints
designed for each respective
seat.
●Adjust the head restraints to the
correct position at all times.
●After adjusting the head
restraints, push down on them
and make sure they are locked
in position.
●Do not drive with the head
restraints removed.
Vertical adjustment

1994-4. Adjusting the steering wheel and mirrors
Owners Manual_USA_M42C01_en
4
Before driving
4-4.Adjusting the steering wheel and mirrors
1 Hold the steering wheel and
push the lever down.
2 Adjust to the ideal position by
moving the steering wheel
horizontally and vertically.
After adjustment, pull the lever up
to secure the steering wheel.
To sound the horn, press on or
close to the mark.
Steering wheel
Adjustment procedure
WARNING
■Caution while driving
Do not adjust the steering wheel
while driving.
Doing so may cause the driver to
mishandle the vehicle and cause
an accident, resul ting in death or
serious injury.
■After adjusting the steering
wheel
Make sure that the steering wheel
is securely locked.
Otherwise, the steering wheel
may move suddenly, possibly
causing an accident, and resulting
in death or serious injury. Also,
the horn may not sound if the
steering wheel is not securely
locked.
Sounding the horn

2225-1. Before driving
Owners Manual_USA_M42C01_en
WARNING
■When shifting the shift posi-
tion
●Do not let the vehicle roll back-
ward while a forward driving
position is selected, or roll for-
ward while the shift position is in
R.
Doing so may result in an acci-
dent or damage to the vehicle.
●Do not shift the shift position to
P while the vehicle is moving.
Doing so can damage the trans-
mission and may result in a loss
of vehicle control.
●Do not shift the shift position to
R while the vehicle is moving
forward.
Doing so can damage the trans-
mission and may result in a loss
of vehicle control.
●Do not shift the shift position to
a driving position while the vehi-
cle is moving backward.
Doing so can damage the trans-
mission and may result in a loss
of vehicle control.
●Changing the shif t position to N
while the vehicle is moving will
disengage the hy brid system.
Regenerative braking is not
available with the EV system
disengaged.
●Be careful not to change the
shift position wit h the accelera-
tor pedal depressed.
Changing the shif t position to
any positions other than P or N
may lead to unexpected rapid
acceleration of the vehicle that
may cause an accident and
result in death or serious injury.
After changing the shift position,
make sure to confirm the cur-
rent shift position displayed on
the shift position indicator inside
the meter.
■If you hear a squealing or
scraping noise (brake pad
wear limit indicators)
Have the brake pads checked and
replaced by your Toyota dealer as
soon as possible.
Rotor damage may result if the
pads are not replaced when
needed.
It is dangerous to drive the vehicle
when the wear limits of the brake
pads and/or those of the brake
discs are exceeded.
■When the vehicle is stopped
●Do not depress the accelerator
pedal unnecessarily.
If the shift position is in any
position other than P or N, the
vehicle may accelerate sud-
denly and unexpectedly, caus-
ing an accident.
●In order to prevent accidents
due to the vehic le rolling away,
always keep depressing the
brake pedal while stopped with
the “READY” indicator is illumi-
nated, and apply the parking
brake as necessary.
●If the vehicle is stopped on an
incline, in order to prevent acci-
dents caused by the vehicle roll-
ing forward or backward, always
depress the brake pedal and
securely apply the parking
brake as needed.
■When the vehicle is parked
●Do not leave glasses, cigarette
lighters, spray cans, or soft
drink cans in the vehicle when it
is in the sun.
Doing so may result in the fol-
lowing:
• Gas may leak from a cigarette lighter or spray can, and may
lead to a fire.

2275-1. Before driving
Owners Manual_USA_M42C01_en
5
Driving
Cargo capacity
Total load capacity (vehicle
capacity weight) ( P.550)
When 2 people with the com-
bined weight of A lb. (kg) are rid-
ing in your vehicle, which has a
total load capacity (vehicle
capacity weight) of B lb. (kg),
the available amount of cargo
and luggage load capacity will
be C lb. (kg) as follows:
B
*2 lb. (kg) - A*1 lb. (kg) = C*3 lb.
(kg)
*1: A = Weight of people
*2: B = Total load capacity
*3: C = Available cargo and luggage load
In this condition, if 3 more passen-
gers with the combined weight of D
lb. (kg) get on, the available cargo
and luggage load will be reduced E
lb. (kg) as follows:
C lb. (kg) - D*4 lb. (kg) = E*5 lb.
(kg)
*4: D = Additional weight of people
*5: E = Available cargo and luggage load
As shown in the example above,
if the number of occupants
increases, the cargo and lug-
gage load will be reduced by an
amount that equals the
increased weight due to the
additional occupants. In other
words, if an increase in the num-
ber of occupants causes an
excess of the total load capacity
(combined weight of occupants
plus cargo and luggage load),
you must reduce the cargo and
luggage on your vehicle.
Calculation formula for
your vehicle
WARNING
■When loading cargo on the
roof luggage carrier (if
equipped)
Observe the following precau-
tions:
●Place the cargo so that its
weight is distributed evenly
between the front and rear
axles.
●If loading long or wide cargo,
never exceed the vehicle overall
length or width. ( P.550)
●Before driving, m ake sure the
cargo is securely fastened on
the roof luggage carrier.
●Loading cargo on the roof lug-
gage carrier will make the cen-
ter of gravity of the vehicle
higher. Avoid high speeds, sud-
den starts, sharp turns, sudden
braking or abrupt maneuvers,
otherwise it may result in loss of
control or vehicle rollover due to
failure to operate this vehicle
correctly and result in death or
serious injury.

2375-2. Driving procedures
Owners Manual_USA_M42C01_en
5
Driving
Rotary shifter
Operate the dial shift slowly and
securely.
To switch to N, hol d down the dial
shift and hold it for a while.
To switch to R or D, hold down the
dial shift and turn left or right
according to the arrow on the shift
position indicator.
Release the rotary shifter after each
shifting operation to allow it to
return to its regular position.
When shifting from P to N, D or R,
from N, D or R to P, from D to R, or
from R to D, ensure that the brake
pedal is being depressed and the
vehicle is stationary.
Shift position indicator
Meter display:
The current shift position is illumi- nated.
Rotary shifter display:
The current shift p
osition is illumi-
nated.
When selecting the shift position,
make sure that the shift position
has been changed to the desired
position by checking the shift posi-
tion indicator provided on the
instrument cluster.
P position switch
Fully stop the vehicle and set the
parking brake, and then press the P
position switch.
When the shift position is changed
to P, the switch illuminates.
Check that the shif t position indica-
tor shows P.
■Changing the shift position in
each power switch mode
●The shift position cannot be
changed when the power switch is
in ACC or off.
●When the power switch is in ON, if
the “READY” indica tor is not illu-
minated, the shift position can
only be changed to N.
●When the “READY” indicator is
illuminated, the shift position can
be changed from P to D, N, or R.
●When the “READY” indicator is
flashing, the shift position cannot
be changed from P to any other
position, even if the rotary shifter
is operated. Ope rate the rotary
shifter again after the “READY”
indicator changes from flashing to
illuminated.
■Shifting the shift position from
P to other positions
●While depressing the brake pedal
firmly, operate the rotary shifter. If
the rotary shifter is operated with-
out depressing the brake pedal,
the buzzer will sound and the
Shift position display and
how to change the shift
position

2845-4. Using the driving support systems
Owners Manual_USA_M42C01_en
●When the system determines that
the driver is not securely holding
the steering wheel, or the steering
wheel is not being operated when
the steering assist operation of the
lane departure prevention function
is operating
The length of time that the warning
buzzer operates will become longer
as the frequency o f the steering
assist operating i ncreases. Even if
the system judges that the steering
wheel has been operated, the warn-
ing buzzer will sound for a certain
amount of time.
■Break suggestion function
If the vehicle is swaying, a message
will be displayed and a warning
buzzer will sound to u rge the driver
to take a break.
Depending on the condition of the
vehicle and road surface, the break
suggestion functi on may not oper-
ate.
 The LDA system can be
enabled/disabled through a
customize setting. ( P.572)
 The settings of the LDA can be changed through on the
customize settings. (
P.572)
Changing LDA settings
WARNING
■Situations in which the LDA
should not be used
In the following situations, disable
the LDA system. Failure to do so
may lead to an accident.
●When it is necessary to disable
the system: P.259
■Situations in which the sys-
tem may not ope rate properly
In the following situations, the
system may not operate properly
and the vehicle may depart from
its lane. Do not overly rely on
these functions. The driver is
solely responsible for paying
attention to their surroundings
and operating the steering wheel
as necessary to ensure safety.
●When the boundary between
the asphalt and grass, soil, etc.,
or structures, such as a curb,
guardrail, etc. is not clear or
straight
●When the vehicle is struck by a
crosswind or the turbulence of
other nearby vehicles
●Situations in which the lane may
not be detected:  P.264
●Situations in which the sensors
may not operate properly:
P.263
●Situations in which some or all
of the functions of the system
cannot operate: P.264

3065-4. Using the driving support systems
Owners Manual_USA_M42C01_en• When a vehicle enters a detection
area traveling at about the same
speed as your vehicle
• As your vehicle starts from a stop, a vehicle remains in the detection
area
• When driving up and down con- secutive steep inclines, such as
hills, dips in the road, etc.
• When driving on roads with sharp bends, consecutive curves, or
uneven surfaces
• When vehicle lanes are wide, or when driving on the edge of a
lane, and the vehicle in an adja-
cent lane is far away from your
vehicle
• When an accessory (such as a
bicycle carrier) is installed to the
rear of the vehicle
• When there is a significant differ-
ence in height between your vehi-
cle and the vehicle that enters the
detection area
• Immediately after the Blind Spot Monitor is turned on
• When towing with the vehicle
●Instances of the Blind Spot Moni-
tor unnecessarily d etecting a vehi-
cle and/or object may increase in
the following situations:
• When the sensor is misaligned
due to a strong impact to the sen-
sor or its surrounding area
• When the distanc e between your
vehicle and a guardr ail, wall, etc.,
that enters the detection area is
short
• When driving up and down con- secutive steep inclines, such as
hills, dips in the road, etc.
• When vehicle lanes are narrow, or when driving on the edge of a
lane, and a vehicle traveling in a
lane other than the adjacent lanes
enters the detection area
• When driving on roads with sharp bends, consecutive curves, or
uneven surfaces
• When the tires are slipping or spinning
• When the distanc e between your
vehicle and a following vehicle is
short • When an accessory (such as a
bicycle carrier) is installed to the
rear of the vehicle
• When towing with the vehicle