ECU TOYOTA COROLLA CROSS 2023 Service Manual

752-1. Instrument cluster
2
Vehicle status information and indicators
*1: These lights come on when the engine switch is turned to ON to
indicate that a system check is being performed.
They will turn
off after the engine is started, or
after a few seconds. There may
be a malfunction in a system if
the lights do not come on, or turn
off. Have the vehicle inspected
by your Toyota dealer.
*2: This light comes on when the system is turned off.
*3: This light illuminates on the out-side rear view mirrors.
*4: This light illuminates on the multi-information display.
*5: When the outside temperature is approximately 37°F (3°C) or
lower, this indicator will flash for
approximately 10 seconds, then
stay on.
*6: This light illuminates on the air conditioning operation panel.
*7: This light illumina tes on the front
interior/personal lights.
BSM outside rear view
mirror indicators
*1, 3 (if
equipped) ( P.244)
Driving assist information
indicator
*1, 2 (  P.397)
Intuitive parking assist
OFF indicator
*2 (if
equipped) ( P.259)
Stop & Start indicator
(  P.237)
Stop & Start cancel indica-
tor
*1, 2 (  P.238)
(Flashes)
Slip indicator*1 ( P.275)
VSC OFF indicator
*1, 2
(  P.275)
Smart key system indica-
tor
*4 (if equipped)
(  P.163)
(U.S.A.)
Parking brake indicator
( P.172)
(Canada)
Parking brake indicator
( P.172)
Brake hold standby indi-
cator ( P.175)
Brake hold operated indi-
cator ( P.175)
Eco Driving Indicator
Light
*1 (  P. 8 4 )
Low outside temperature
indicator
*5 (  P.76, 79)
Security indicator
*6
(  P.68, 69)
“AIR BAG ON/OFF”
indicator
*1, 7 ( P. 3 7 )

1033-2. Opening, closing and locking the doors
3
Before driving
3-2.Opening, closing and locking the doors
■Smart key system (if
equipped)
Carry the electronic key to
enable this function.
1 Grip the driver’s door handle
to unlock the door. Holding
the driver’s door handle for
approximately 2 seconds
unlocks all the doors. Grip
the front passenger’s door
handle to unlock all the
doors.
*
Make sure to touch the sensor on
the back of the handle.
The doors cannot be unlocked for 3
seconds after the doors are locked.
*: The door unlock settings can be
changed. ( P.104, 449)
2 Touch the lock sensor (the
indentation on the side of the
front door handle) to lock all
the doors.
Check that the door is securely
locked.
■Wireless remote control
Vehicles without a smart key
system
1 Locks all the doors
Check that the d oor is securely
locked.
2 Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
other doors.
Press and hold to open the win-
dows
*1.
Vehicles with a smart key sys-
tem
1 Locks all the doors
Check that the d oor is securely
locked.
2 Unlocks all the doors
Pressing the button unlocks the
driver’s door. Pressing the button
again within 3 seconds unlocks the
Side doors
Unlocking and locking the
doors from the outside

1053-2. Opening, closing and locking the doors
3
Before driving
be locked again and the alarm will
automatically be set.)
In case that the alarm is triggered,
immediately stop the alarm. ( P. 6 9 )
■Impact detection door lock
release system
In the event that t he vehicle is sub-
ject to a strong impact, all the doors
are unlocked. Depending on the
force of the impact or the type of
accident, however, the system may
not operate.
■Operation signals
A buzzer sounds and the emer-
gency flashers flash to indicate that
the doors have been
locked/unlocked using the entry
function
* or wireless remote control.
(Locked: Once; Unlocked: Twice)
A buzzer sounds to indicate that the
windows and moon roof
*are operat-
ing.
*: If equipped
■Security feature
If a door is not opened within
approximately 60 seconds after the
vehicle is unlocked using the entry
function
* or wireless remote control,
the security featu re automatically
locks the vehicle again.
*: If equipped
■When the door cannot be
locked by the lock sensor on
the surface of the front door
handle (vehicles with a smart
key system)
If the doors cannot be locked by
touching the lock sensor with a fin-
ger, touch the lock sensor with the
palm of your hand.
If you are wearing gloves, remove
them.
■Door lock buzzer
Vehicles without a smart key sys-
tem
If an attempt to lock the doors using
the wireless remote control is made
when a door is not fully closed, a
buzzer will sound continuously for
10 seconds. Fully close the door to
stop the buzzer, and lock the doors
again.
Vehicles with a smart key system
If an attempt to lock the doors using
the entry function or wireless remote
control is made when a door is not
fully closed, a b uzzer will sound
continuously for 5 seconds. Fully
close the door to stop the buzzer,
and lock the doors again.
■Alarm (if equipped)
Locking the doors will set the alarm
system. ( P. 6 9 )
■Conditions affecting the opera-
tion of the smart key system (if
equipped) or wireless remote
control
Vehicles without a smart key sys-
tem
 P.101
Vehicles with a smart key system
 P. 1 1 9
■If the smart k ey system (if
equipped) or the wireless
remote control does not oper-
ate properly
Vehicles without a smart key sys-
tem
Replace the key battery with a new
one if it is depleted. ( P.368)

1093-2. Opening, closing and locking the doors
3
Before driving
WARNING
●Do not allow a child to open or
close the back door.
Doing so may cause the back
door to move unexpectedly, or
cause the child’s hands, arms,
head, or neck to be caught by the
closing back door.
■Operating the back door
Observe the following precau-
tions. Failure to do so may cause
parts of the body to be caught,
resulting in death or serious injury.
●Remove any heavy loads, such
as snow and ice, from the back
door before opening it. Failure
to do so may cause the back
door to suddenly shut again
after it is opened.
●When opening or closing the
back door, thoroughly check to
make sure the surrounding area
is safe.
●If anyone is in the vicinity, make
sure they are safe and let them
know that the back door is
about to open or close.
●Use caution when opening or
closing the back door in windy
weather as it may move
abruptly in strong wind.
●Vehicles with a power back
door: The power back door may
suddenly shut if it is not opened
fully. It is more difficult to open
or close the back door on an
incline than on a level surface,
so beware of the back door
unexpectedly opening or closing
by itself. Make sure that the
back door is fully open and
secure before using the luggage
compartment.
Vehicles without a power back
door: The back door may sud-
denly shut if it is not opened fully.
It is more difficult to open or close
the back door on an incline than
on a level surfac e, so beware of
the back door unexpectedly open-
ing or closing by itself. Make sure
that the back door is fully open
and secure before using the lug-
gage compartment.
●Vehicles with a power back
door: The back door may sud-
denly shut if it is not opened
fully while on a steep incline.
Make sure that the back door is
secured before using the lug-
gage compartment.
●When closing the back door,
take extra care to prevent your
fingers, etc., from being caught.

1103-2. Opening, closing and locking the doors
■Smart key system (if
equipped)
Carry the electronic key to
enable this function.
1 Unlocks all the doors
The doors cannot be unlocked for 3
seconds after the doors are locked.
2Locks all the doors
Check that the d oor is securely
locked.
■Wireless remote control
 P.103
■Key
 P.104
■Luggage compartment light
●The luggage compartment light
turns on when the back door is
opened.
●If the luggage compartment light is
left on when the engine switch is
turned off, the light will go off auto-
matically after 20 minutes.
■Operation signals
 P.105
WARNING
●When closing the back door,
make sure to press it lightly on
its outer surface. If the back
door handle is used to fully
close the back door, it may
result in hands or arms being
caught.
●Do not pull on the back door
damper stay (vehicles without a
power back door) (
P.111) or
back door spindle (vehicles with
a power back door) (
P.116) to
close the back door, and do not
hang on the back door damper
stay (vehicles without a power
back door) or back door spindle
(vehicles with a power back
door).
Doing so may cause hands to be
caught or the back door damper
stay (vehicles without a power
back door) or back door spindle
(vehicles with a power back door)
to break, causing an accident.
●Do not pull on the back door
damper stay (
P.111) to close
the back door, and do not hang
on the back door damper stay.
Doing so may cause hands to be
caught or the back door damper
stay to break, causing an acci-
dent.
●If a heavy object is attached to
the back door, it may suddenly
shut again after being opened,
causing someone’s hands,
arms, head or neck to be caught
and injured. Do not attach any
accessories other than genuine
Toyota parts to the back door.
Unlocking and locking the
back door from the out-
side

1153-2. Opening, closing and locking the doors
3
Before driving
WARNING
●Use caution when using the
back door closer as it still oper-
ates when the power back door
system is disabled.
■Power back door
Observe the following precautions
when operating the power back
door. Failure to d o so may cause
death or serious injury.
●Check the safety of the sur-
rounding area to make sure
there are no obstacles or any-
thing that could cause any of
your belongings to get caught.
●If anyone is in the vicinity, make
sure they are safe and let them
know that the back door is
about to open or close.
●If the power back door system is
disabled while the power back
door is operating, the back door
will stop operating. The back
door must then be operated
manually. Take extra care in this
situation, as th e back door may
open or close suddenly.
●If the operating conditions of the
power back door (
P.113) are
no longer met, a buzzer may
sound and the back door may
stop opening or closing. The
back door must then be oper-
ated manually. Take extra care
on an incline in this situation, as
the back door may move sud-
denly.
●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 si tuations, the
power back door may detect an
abnormality and automatic
operation may be stopped. In
this case, the back door must
then be operated manually.
Take extra care in this situation,
as the stopped back door may
suddenly open or close, causing
an accident.
• When the back door contacts an obstacle
• When the battery voltage sud- denly drops, such as when the
engine switch is turned to ON or
the engine is started during
automatic operation
●If a heavy objec t is attached to
the back door, the back door
may not operate, causing a mal-
function, or the back door may
suddenly shut again after being
opened, causing someone’s
hands, arms, head or neck to be
caught and injured. Do not
attach any acce ssories other
than genuine Toyota parts to the
back door.
■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
get fingers caught 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.

1213-2. Opening, closing and locking the doors
3
Before driving
●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 unlocke d by the entry
function. (Use the wireless remote
control to unloc k the doors.)
●If the doors have been locked
from outside of the vehicle and are
then not unlocked using the wire-
less remote contr ol or smart key
system, the engine cannot be
started using the smart key sys-
tem. (However, if the doors have
been locked from inside the vehi-
cle, the engine can be started
using the smart key system.)
If it is necessary to start the
engine, it can be started using the
procedure in “If the electronic key
dose not operate properly”
(  P.418).
●Touching the door lock or unlock
sensor while wearing gloves may
prevent lock or unlock operation.
●When the lock op eration is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recogniti on signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective ran ge, the door may
lock and unlock repeatedly. In that
case, follow the fo llowing correc-
tion procedures to wash the vehi-
cle:
• Place the electronic key in a loca- tion 6 ft. (2 m) or more away from
the vehicle. (Take care to ensure
that the key is not stolen.)
• Set the electronic key to bat- tery-saving mode to disable the
smart key system. ( P. 1 1 9 )
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-information display and a
buzzer will sound outside the vehi-
cle. To turn off the alarm, lock all the doors.
●The lock sensor may not work
properly if it comes into contact
with ice, snow, m
ud, etc. Clean
the lock sensor and attempt to
operate it again.
●A sudden handle operation or a
handle operation immediately
after entering the effective range
may prevent the doors from being
unlocked. Touch the door unlock
sensor and check that the doors
are unlocked befo re pulling the
door handle again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
●Fingernails may scrape against
the door during operation of the
door handle. Be careful not to
injure fingernails or damage the
surface of the door.
■When the vehicle is not driven
for extended periods
●To prevent theft of the vehicle, do
not leave the electronic key within
6 ft. (2 m) of the vehicle.
●The smart key system can be
deactivated in advance. ( P.449)
●Setting the electronic key to bat-
tery-saving mode helps to reduce
key battery depletion. ( P. 1 1 9 )
■To operate the system properly
Make sure to carry the electronic
key when operating the system. Do
not get the electronic key too close
to the vehicle when operating the
system from the out side of the vehi-
cle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor-
rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention function m ay not operate.)

1253-3. Adjusting the seats
3
Before driving
WARNING
Observe the following precau-
tions. Failure to do so may result
in death or serious injury.
■When folding the rear seat-
backs down
●Do not fold the seatbacks down
while driving.
●Stop the vehicle on level
ground, set the parking brake
and shift the shift lever to P.
●Do not allow anyone 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.
●Be careful not to get your hand
caught when folding the rear
seatbacks.
●Adjust the position of the front
seats before folding down the
rear seatbacks so that the front
seats do not interfere with the
rear seatbacks when folding
down the rear seatbacks.
■After returning the rear seat-
back to the upright position
●Make sure that the seatback is
securely locked in position by
lightly pushing it back and forth.
●Check that the seat belts are
not twisted or caught in the
seatback.
If the seat belt gets caught
between the seatback’s securing
hook and latch, it may damage
the seat belt.

1283-4. Adjusting the steering wheel and mirrors
3-4.Adjusting the steering wheel and mirrors
1Hold 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.
Horn

1444-1. Before driving
WARNING
●Do not shift the shift lever 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 lever to R
while the vehicle is moving for-
ward.
Doing so can damage the trans-
mission and may result in a loss
of vehicle control.
●Do not shift the shift lever to a
driving position while the vehicle
is moving backward.
Doing so can damage the trans-
mission and may result in a loss
of vehicle control.
●Moving the shift lever to N while
the vehicle is moving will disen-
gage the engine from the trans-
mission. Engine braking is not
available when N is selected.
●Be careful not to shift the shift
lever with the accelerator pedal
depressed. Shifting the shift
lever 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.
■If you hear a squealing or
scraping noise (brake pad
wear 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 race the engine.
If the vehicle is in any gear other
than P or N, the vehicle may
accelerate suddenly and unex-
pectedly, causing an accident.
●In order to prevent accidents
due to the vehic le rolling away,
always keep depressing the
brake pedal while the engine is
running, 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.
●Avoid revving or racing the
engine.
Running the engine at high
speed while the vehicle is
stopped may cause the exhaust
system to overheat, which could
result in a fire if combustible
material is nearby.
■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.
• The temperature inside the vehicle may cause the plastic
lenses and plastic material of
glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray
over the interior of the vehicle,
and may also cause a short cir-
cuit in the vehicle’s electrical
components.