ECU TOYOTA COROLLA CROSS HYBRID 2023 User Guide

301-1. For safe use
based on US motor vehicle safety standards (FMVSS208). The air-
bag sensor assembly (ECU) controls airbag deployment based on
information obtained from the sensors, etc., shown in the system
components diagram above. This in formation includes crash sever-
ity and occupant information. As the airbags deploy, a chemical
reaction in the inflators quickly fills the airbags with non-toxic gas to
help restrain the motion of the occupants.
■If the SRS airbags deploy
(inflate)
●Slight abrasions, burns, bruising,
etc., may be sustained from SRS
airbags, due to the extremely high
speed of deployment (inflation) by
hot gases.
●A loud noise and white powder will
be emitted.
●Parts of the airbag module (steer-
ing wheel hub, airbag cover and
inflator) as well as the parts
around the airbags may be hot for
several minutes. T he airbag itself
may also be hot.
●The windshield may crack.
●The hybrid system will be stopped
and fuel supply to the engine will
be stopped. ( P. 7 4 )
●All of the doors will be unlocked.
( P.116)
●The brakes and st op lights will be
controlled automatically. ( P.285)
●The interior lights will turn on auto-
matically. ( P.309)
●The emergency flashers will turn
on automatically. ( P.394)
●For Safety Connect subscribers, if
any of the following situations
occur, the system is designed to
send an emergency call to the
response center, notifying them of
the vehicle’s location (without
needing to push the “SOS” button)
and an agent will attempt to speak
with the occupants to ascertain
the level of emergency and assis-
tance required. If the occupants
are unable to communicate, the agent automatically treats the call
as an emergency and helps to dis-
patch the necessary emergency
services. (
P. 6 4 )
• When an SRS airbag has been deployed
• When a seat belt pretensioner has
operated
• When the vehicle has been involved in a severe rear-end colli-
sion
■The SRS airbags deploy in a
frontal impact when
●The following SRS airbags will
deploy in the event of an impact
that exceeds a th reshold level
(level of force corresponding to an
approximately 12 - 18 mph [20 -
30 km/h] frontal collision with a
fixed wall that does not move or
deform):
• SRS front airbags
• SRS knee airbag
●The threshold level at which the
SRS airbags will deploy will be
higher than normal in the in the
following situations:
• When the vehicle collides with an
object, such as a parked vehicle
or sign pole, which moves or
deforms on impact
• If the vehicle is involved in an underride collision, such as a colli-
sion in which the front of the vehi-
cle “underrides”, or goes under,
the bed of a truck
●Depending on the type of collision,
only the following may deploy:
• Seat belt pretensioners
●The SRS airbags for the front pas-
senger’s seat will not deploy if
there is no passe nger in the front

311-1. For safe use
1
For safety and security
passenger seat. However, the
SRS airbags for the front passen-
ger’s seat may deploy, even if the
seat is unoccupied, if luggage is
put on the seat.
●In the event of an especially
severe frontal collision, the left
and right SRS curtain shield air-
bags may also deploy.
■The SRS airbags deploy in a
side impact when
●The following SRS airbags will
deploy in the event of an impact
that exceeds the set threshold
level (level of force corresponding
to the impact force produced by
an approximately 3300 lb. [1500
kg] vehicle collid ing with the pas-
senger compartment at a perpen-
dicular angle at an approximate
speed of 12 - 18 mph [20 - 30
km/h]):
• SRS side airbags
• SRS curtain shield airbags
●If the vehicle is involved in a roll-
over, the following SRS airbags
will deploy:
• Both left and right SRS curtain
shield airbags
■The SRS airbags deploy in an
underside impact when
●The following airbags may deploy
if the underside of the vehicle col-
lides with a hard object:
• SRS front airbags
• SRS knee airbag
• SRS side airbags
• SRS curtain shield airbags
●The following airbags may deploy
if the vehicle becomes signifi-
cantly tilted or is strongly impacted
by skidding into a curb, etc.: • SRS curtain shield airbags
■The SRS side airbags will not
deploy when
●The following SRS airbags will not
normally deploy in side or rear col-
lisions, vehicle rollovers, or low
speed frontal collisions. However,
if such a collision causes sufficient
sudden deceleration, the SRS air-
bags may deploy.
• SRS front airbags
• SRS knee airbag
●The following SRS airbags may
not deploy if the vehicle is collided
with at a certain angle or in a side
collision where an area of the
vehicle other than the passenger
compartment is collided with:
• SRS side airbags
• SRS curtain shield airbags
●The following SRS airbags will not
normally deploy in front or rear
collisions, vehicle rollovers, or low
speed side collisions:
• SRS side airbags

331-1. For safe use
1
For safety and security
WARNING
●The SRS driver airbag deploys
with considerable force, and
can cause death or serious
injury, especially if the driver is
very close to the airbag. The
National Highway Traffic Safety
Administration (NHTSA)
advises:
Since the risk zone for the driver’s
airbag is the first 2 - 3 in. (50 - 75
mm) of inflation, placing yourself
10 in. (250 mm) from your driver
airbag provides y ou with a clear
margin of safety. This distance is
measured from the center of the
steering wheel to your breast-
bone. If your current driving posi-
tion places you less than 10 in.
(250 mm) away from the driver
airbag, you can change your driv-
ing position in several ways:
• Move your seat to the rear as far as possible while still being
able to reach the pedals com-
fortably.
• Slightly recline the seatback. Although vehicle designs vary,
many drivers can achieve the
10 in. (251 mm) distance, even
with the driver seat all the way
forward, simply by reclining the
seatback somewhat. If reclining
the seatback makes it hard to
see the road, raise yourself by
using a firm, non-slippery cush-
ion, or raise the seat if your
vehicle has that feature.
• If your steering wheel is adjust- able, tilt it downward. This
points the airbag toward your
chest instead of your head and
neck. The seat should be
adjusted as recommended by
the NHTSA, while still being
able to control the vehicle with
the pedals and steering wheel,
and maintaining your view of the
instrument panel controls.
●If a seat belt extender has been
connected to a front seat belt
buckle but the latch plate of the
seat belt has not been fastened
to the seat belt extender, the
SRS airbag system will judge
that the occupant is wearing the
seat belt even though the seat
belt has not been fastened. In
this case, the SRS front airbags
may not deploy c orrectly in a
collision, resulting in death or
serious injury. Be sure to wear
the seat belt correctly when
using a seat belt extender.
●The SRS front passenger air-
bag deploys with considerable
force, and can cause death or
serious injury, especially if the
front passenger is very close to
the airbag. The front passenger
seat should be positioned as far
possible from the airbag with
the seatback adjusted so that
the passenger is sat upright.

341-1. For safe use
WARNING
●Improperly seated and/or
restrained infants and children
can be killed or seriously injured
by a deploying airbag. An infant
or child who is too small to use
a seat belt should be properly
secured using a child restraint
system. Toyota strongly recom-
mends that all infants and chil-
dren be placed in the rear seats
of the vehicle and properly
restrained. The rear seats are
safer for infants and children
than the front passenger seat.
(
P. 4 3 )
●Do not sit on the edge of the
seat or lean against the dash-
board.
●Do not allow a child to stand in
front of the SRS front passenger
airbag or sit on the lap of a front
passenger.
●Front seat occupants should
never hold items on their lap.
●Do not lean against the door,
roof side rail, or front, side, or
rear pillar.
●Do not allow anyone to kneel on
a seat toward the door or put
their head or han ds outside the
vehicle.
●Do not attach anything to or
lean anything against areas
such as the dashboard, steering
wheel pad and lower portion of
the instrument panel.

351-1. For safe use
1
For safety and security
WARNING
●Do not attach anything to areas
such as the doors, windshield,
side windows, front or rear pil-
lars, roof side rails and assist
grips. (With the exception of the
speed limit label
P.419)
●Do not hang coat hangers or
other hard objects on the coat
hooks. These items could
become project iles if the SRS
curtain shield airbags deploy,
possibly leading to death or
serious injury.
●If a vinyl cover is attached to the
area where the SRS knee air-
bag deploys, be sure to remove
it.
●Do not use seat accessories
which cover the parts from
which the SRS airbags deploy,
as they may interfere with infla-
tion of the SRS airbags. Such
accessories may prevent the
SRS airbags from deploying
correctly, may disable the sys-
tem or cause the SRS airbags
to inflate unintentionally, possi-
bly resulting in death or serious
injury.
●Do not strike or apply significant
force to the SRS airbag system
components, front doors or their
surrounding area.
Doing so may cause the SRS
airbags to malfunction.
●Do not touch any components
of the SRS airbags immediately
after the SRS airbags have
deployed (inflated) as they may
be hot.
●If breathing becomes difficult
after the SRS airbags have
deployed, open a door or win-
dow to allow fresh air in, or
leave the vehicle if it is safe to
do so. Wash off any residue as
soon as possible to prevent skin
irritation.
●If a part where an SRS airbag is
stored is damaged or cracked,
have it replaced by your Toyota
dealer.
●Do not place anything, such as
a cushion, on the front passen-
ger's seat. Doing so will
disperse the passenger’s
weight, which prevents the sen-
sor from detecting the passen-
ger’s weight properly. As a
result, the SRS front airbags for
the front passenger’s seat may
not deploy in the event of a colli-
sion.
■Modification and disposal of
SRS airbag system compo-
nents
Do not dispose of your vehicle or
perform any of the following modi-
fications without consulting your
Toyota dealer. The SRS airbags
may malfunction or deploy unin-
tentionally, possi bly leading to
death or serious injury.
●Removal, installation, disas-
sembly or repair of the SRS air-
bags
●Repair, removal or modification
of the following parts or their
surrounding
• Steering wheel
• Instrument panel

371-1. For safe use
1
For safety and security
SRS warning light
Front passenger seat belt reminder light
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant
classification system.This system detects the conditions of
the front passenger seat and activates or deactivates the fol-
lowing SRS airbags.
SRS front passenger airbag
SRS front passenger airbag

391-1. For safe use
1
For safety and security
■System malfunction
*1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may not recognize them
as an adult depending on their physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenge r does not wear a seat belt.
*4: For some children, child in seat, child in booster seat or chi ld in convert-
ible seat, the system may not recognize them as a child. Factors which
may affect this can be the physique or posture.
*5: Never install a rear-facing ch ild restraint system on the fron t passenger
seat. A forward-facing child restraint system should only be in stalled on
the front passenger sea t when it is unavoidable. ( P.43)
*6: In case the indicator light is not illuminated, consult this m anual on how
to install the child restr aint system properly. (P. 4 3 )
Indicators/warning
lights
“AIR BAG ON” and “AIR BAG OFF” indicator lights“AIR BAG OFF”
SRS warning light
OnFront passenger’s seat belt reminder light
DevicesFront passenger airbagDeactivated
WARNING
■Front passenger occupant
classification system precau-
tions
Observe the following precautions
regarding the front passenger
occupant classification system.
Failure to do so may cause death
or serious injury.
●Wear the seat belt properly.
●Make sure the front passenger’s
seat belt latch plate has not
been left inserted into the
buckle before someone sits in
the front passenger seat.
●Make sure the “AIR BAG OFF”
indicator light is not illuminated
when using the seat belt
extender for the front passenger
seat. If the “AIR BAG OFF” indi-
cator light is illuminated, discon-
nect the extender tongue from
the seat belt buckle, and recon-
nect the seat belt. Reconnect
the seat belt extender after
making sure the “AIR BAG ON”
indicator light i s illuminated. If
you use the seat belt extender
while the “AIR BAG OFF” indi-
cator light is illuminated, the
SRS airbags for the front pas-
senger will not activate, which
could cause death or serious
injury in the even t of a collision.
●Do not apply a heavy load to the
front passenger seat or equip-
ment (e.g. seatback pocket).

411-1. For safe use
1
For safety and security
Exhaust gas precau-
tions
Harmful substance to the
human body is included in
exhaust gases if inhaled.
WARNING
Exhaust gases include harmful
carbon monoxide (CO), which is
colorless and odorless. Observe
the following precautions.
Failure to do so may cause
exhaust gases enter the vehicle
and may lead to an accident
caused by light-headedness, or
may lead to death or a serious
health hazard.
■Important points while driving
●Keep the back door closed.
●If you smell exhaust gases in
the vehicle even when the back
door is closed, open the win-
dows and have the vehicle
inspected at your Toyota dealer
as soon as possible.
■When parking
●If the vehicle is in a poorly venti-
lated area or a closed area,
such as a garage, stop the
hybrid system.
●Do not leave the vehicle with
the hybrid system on for a long
time.
If such a situation cannot be
avoided, park the vehicle in an
open space and ensure that
exhaust fumes do not enter the
vehicle interior.
●Do not leave the hybrid system
operating in an area with snow
build-up, or where it is snowing.
If snowbanks build up around
the vehicle while the hybrid sys-
tem is operating, exhaust gases
may collect and enter the vehi-
cle.
■Exhaust pipe
The exhaust system needs to be
checked periodically. If there is a
hole or crack caused by corro-
sion, damage to a joint or abnor-
mal exhaust noise, be sure to
have the vehicle inspected and
repaired by your Toyota dealer.

431-2. Child safety
1
For safety and security
Points to remember: P.43
Child restraint system: P.45
When using a child restraint sys-
tem: P.45
Child restraint system compati-
bility for each seating position
(for Puerto Rico): P.47
Child restraint system installa-
tion method
• Fixed with a seat belt: P.52
• Fixed with a child restraint LATCH anchor (except for
Puerto Rico): P.56
• Fixed with an ISOFIX lower anchorage (for Puerto Rico):
P. 5 8
• Using an anchor bracket (for
top tether strap) (except for
Puerto Rico): P.61
• Using a top tether anchorage (for Puerto Rico): P.62
The laws of all 50 states of the
U.S.A. as well as Canada now
require the use of child restraint
systems.
 Prioritize and observe the
warnings, as well as the laws
and regulations for child
restraint systems.
 Use a child restraint system
until the child becomes large
enough to properly wear the
vehicle’s seat belt.
 Choose a child restraint sys-
tem that suits your vehicle
and is appropriate to the age
and size of the child.
Child restraint sys-
tems
Before installing a child
restraint system in the vehi-
cle, there are precautions
that need to be observed,
different types of child
restraint systems, as well as
installation methods, etc.,
written in this manual.
Use a child restraint system
when riding with a small child
that cannot properly use a
seat belt. For the child’s
safety, install the child
restraint system to a rear seat.
Be sure to follow the installa-
tion method that is in the oper-
ation manual enclosed with
the restraint system.
Table of contents
Points to remember
WARNING
■When a child is riding
Observe the following precau-
tions.
Failure to do so may result in
death or serious injury.

441-2. Child safety
WARNING
●For effective protection in auto-
mobile accidents and sudden
stops, a child must be properly
restrained, using a seat belt or
child restraint system which is
correctly installed. For installa-
tion details, ref er to the opera-
tion manual enclosed with the
child restraint system. General
installation instruction is pro-
vided in this manual.
●Toyota strongly urges the use of
a proper child restraint system
that conforms to the weight and
size of the child, installed on the
rear seat. According to accident
statistics, the child is safer when
properly restrained in the rear
seat than in the front seat.
●Holding a child in your or some-
one else’s arms is not a substi-
tute for a child restraint system.
In an accident, the child can be
crushed against the windshield
or between the holder and the
interior of the vehicle.
■Handling the child restraint
system
If the child restraint system is not
properly fixed in place, the child or
other passengers may be seri-
ously injured or even killed in the
event of sudden braking, sudden
swerving, or an accident.
●If the vehicle were to receive a
strong impact from an accident,
etc., it is possib le that the child
restraint system has damage
that is not readily visible. In
such cases, do not reuse the
restraint system.
●For Puerto Rico: Depending on
the child restraint system, instal-
lation may be difficult or impos-
sible. In those cases, check
whether the child restraint sys-
tem is suitable for installment in
the vehicle. (
P.47) Be sure to
install and observe the usage
rules after carefully reading the
child restraint system fixing
method in this manual, as well
as the operation manual
enclosed with the child restraint
system.
●Except for Puerto Rico: Make
sure you have complied with all
installation instructions provided
with the child restraint system
manufacturer and that the sys-
tem is properly secured.
●Keep the child restraint system
properly secured on the seat
even if it is not in use. Do not
store the child restraint system
unsecured in the passenger
compartment.
●If it is necessary to detach the
child restraint system, remove it
from the vehicle or store it
securely in the luggage com-
partment.